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{"id":8924069822716,"title":"Woom GO 4 vibrant yellow","handle":"woom-go-4-vibrant-yellow","description":"\u003cdiv\u003e    \u003cimg alt=\"Woom brand logo\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/woomLogotypeRedRGB_100x100.png?v=1696600063\"\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAge:\u003c\/strong\u003e  6 - 8 yrs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Size:\u003c\/strong\u003e  20\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame Size: \u003c\/strong\u003e\u003cspan\u003e 11.5\u003c\/span\u003e\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMin Inside Leg: \u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e20\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRider Height: \u003c\/strong\u003e\u003cspan\u003e 115 \u003c\/span\u003e- 130cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e  Vibrant yellow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame Material:\u003c\/strong\u003e  Aluminium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Gears:\u003c\/strong\u003e  7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrake Type:\u003c\/strong\u003e  V-type\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheels:\u003c\/strong\u003e  Full alloy (QR front)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTyres:\u003c\/strong\u003e  20\" x 1 ⅜\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e  7.8 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"color: green;\"\u003eMake your Woom bike even more special!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-decoration: underline;\"\u003e\u003ca href=\"https:\/\/www.northbikes.co.uk\/collections\/woom-accessories\"\u003e\u003cstrong\u003eClick here to see all Woom accessories\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c!-- TABS --\u003e\n\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe Woom GO 4 is a superlight bike with 20″ wheels and a safety-conscious design for kids aged 6 years and up.\u003cbr\u003e\u003cbr\u003eThe time has come for your child to get to grips with the gears... yay!  Shifting is so smooth on the Woom GO 4 that bike life is about to get even better.\u003cbr\u003e\u003cbr\u003eFrom now on, you and your child will be able to set off on longer-than-ever expeditions with uphill or downhill stretches.  7-speed gears in combination with an easy-to-operate twist grip shifter expand the bike's range of use and increase the child's mobility.\u003cbr\u003e\u003cbr\u003eWeighing in at only 7.8 kg (without pedals), the Woom GO 4 is a real lightweight.\u003cbr\u003e\u003cbr\u003eA whole world full of new and exciting adventures awaits!\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cstyle\u003e.embedtool {position: relative;height: 0;padding-top: 56%;overflow: hidden;max-width: 100%;} .embedtool iframe, .embedtool object, .embedtool embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } .embedtool .fluid-vids {position: initial !important}\u003c\/style\u003e\n\u003cdiv class=\"embedtool\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/SYRNBlk1lEo\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"margin-bottom: 10px; float: none;\" alt=\"Woom GO 4 red 20 inch wheel 7-speed ultralight children's bike.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO4red1_480x480.jpg?v=1742115024\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e Innovative frame\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA superlight aluminum frame is the heart of the bike.  Its smart geometry with low entry and upright riding position allows your child to get on, ride and get off again safely.  The long wheelbase and forgiving front-end geometry provide them with stability and guarantee a smooth ride.\u003cbr\u003eSuperlight = Superfun!\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg style=\"margin-bottom: 10px; float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO42_480x480.jpg?v=1742116513\" alt=\"Woom GO 4 adjustable reach brake levers.\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e Child-specific brake levers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYour child won't struggle to bring their Woom GO 4 to a stop even if their hands aren't very strong.  That's down to high-quality Jagwire Bowden brake cables, ergonomic brake levers and small (but mighty) barrel adjusters that you can use to set the right distance between the brake lever and the handlebar grip.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO4red3_480x480.jpg?v=1742116513\" alt=\"Woom GO 4 red 20 inch wheel 7-speed ultralight children's bike.\" style=\"margin-bottom: 10px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e Protective handlebar grips\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWoom's high-quality handlebar grips have a narrow diameter and an ergonomic design so your child can comfortably hold on with a good grip.  The special material and extra large outer diameter keep your child safe, reducing the risk of them getting injured if they do happen to fall.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO4red7_480x480.jpg?v=1742116513\" alt=\"Woom GO 4 ergonomic crank arms with narrow Q-factor and large platform junior non-slip pedals.\" style=\"margin-bottom: 10px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eErgonomic cranks with narrow Q-factor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe length of the high-quality cranks and the distance between the pedals have been perfectly adapted to fit with children's bodies.  This results in an optimum stance and natural movements that feel good, so there's no risk of your child getting their trouser leg caught thanks to the chainring guard.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"margin-bottom: 10px; float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO4red5_480x480.jpg?v=1742116513\" alt=\"Woom GO 4 7-speed microSHIFT twist shifter for intuitive shifting.\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eTwist shifter for intuitive shifting\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYour child will get to grips with the gears in no time thanks to the easy-to-use twist shifter and the child-friendly gear indicator.  They can shift to the next highest gear by twisting the shifter forward.  The little rider on the gear indicator will move towards the hare to show that your child is going faster.  A twist back will shift the gear down again and the little rider will move towards the tortoise to show that your child is slowing down – perhaps because they're tackling a climb.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO44_480x480.jpg?v=1742116513\" alt=\"Woom GO 4 practical quick-release front wheel.\" style=\"margin-bottom: 10px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eHandy quick-release wheel skewer\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA quick-release mechanism on the front wheel axle makes fast and easy work of dismounting and mounting the front wheel, so you can transport the Woom GO 4 by car with no trouble at all.  Quick removal and installation of a wheel is also super helpful if you get a flat tyre.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO4red4_480x480.jpg?v=1742116513\" alt=\"Woom GO 4 ergonomic saddle with integrated GoPro mount.\" style=\"margin-bottom: 10px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eErgonomic saddle\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe saddle has a major influence on the feel of the ride as it is one of the most important points of contact between the child and the bike.  That's why Woom has carefully designed their saddle to suit the pelvis of children in the relevant age group and unlock ultimate comfort.  Your child's ride couldn't be more comfortable!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO4red10_480x480.jpg?v=1742116513\" alt=\"Woom GO 4 practical quick-release seatpost clamp.\" style=\"margin-bottom: 10px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003ePractical quick-release seatpost clamp\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe quick-release seatpost clamp offers a simple, quick and tool-free way to adjust the saddle height.  It's even easy enough to be operated by children.  On your pedals, ready, go! \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/Woom45_480x480.jpg?v=1697304468\" alt=\"Schwalbe Little Joe tyres with reflective sidewalls.\" style=\"margin-bottom: 10px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eAll-round capable tyres\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTyres have a major influence on how a bike rides.  This is why Woom has chosen Schwalbe Little Joe tyres.  These high-quality, lightweight tyres are so grippy that your child can ride effortlessly and safely on any surface.  They can confidently cover gravel, tarmac and dirt, riding in a straight line or taking corners along the way, due to their superior grip.  A reflective stripe on the tyre sidewall ensures that your child is clearly visible, even in low-light conditions.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg alt=\"Woom GO 2 A-B-C bike fit guide on handlebars and seatpost.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO2red8_480x480.jpg?v=1742053866\" style=\"margin-bottom: 10px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eBike fit guide on handlebars and seatpost\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA-B-C markings on the handlebars and seatpost make it easier for you to precisely adjust the Woom GO 4 so the bike can grow with your child.  Start by moving the saddle up or down so that your child can touch both feet to the floor and pedal comfortably.  Match the handlebar marking to the seatpost and your child is good to go.  How easy is that?\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e\u003cspan\u003e Aluminium alloy \/ AL 6061 series \/ Butted tubes\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFork:\u003c\/strong\u003e\u003cspan\u003e Aluminium alloy \/ Straight \u0026amp; slightly tapered leg\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadset:\u003c\/strong\u003e\u003cspan\u003e Fully integrated threadless 1\" alloy A-head \/ Industrial-grade sealed bearings\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShifter:\u003c\/strong\u003e\u003cspan\u003e microSHIFT DS45 twist-grip \/ 1x7 speed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear Derailleur:\u003c\/strong\u003e\u003cspan\u003e microSHIFT M21SS\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreewheel:\u003c\/strong\u003e\u003cspan\u003e Cassette \/ 11-28T \/ 7 speed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e\u003cspan\u003e KMC\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChainset:\u003c\/strong\u003e\u003cspan\u003e Woom 28T narrow-wide chainring \/ Woom forged 110mm alloy crank arms \/ Small-pitch Q-factor\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChainguard: \u003c\/strong\u003e\u003cspan\u003e Single-sided aluminium\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePedals:\u003c\/strong\u003e\u003cspan\u003e Woom non-slip narrow flat platform with reflectors\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottom Bracket:\u003c\/strong\u003e\u003cspan\u003e 3-piece crank system \/ Square taper \/ Sealed cartridge bearings\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRims:\u003c\/strong\u003e\u003cspan\u003e Woom 'Soopa-Doopa-Hoops' superlight aluminium \/ 20H\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront Hub:\u003c\/strong\u003e\u003cspan\u003e Woom 'HubCore' hollow alloy \/ Sealed bearings \/ Quick-release \/ 20H\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear Hub:\u003c\/strong\u003e\u003cspan\u003e Woom 'Hub 'N' Roll' hollow alloy \/ Sealed bearings \/ 5mm Allen hex bolt internal fixing \/ 20H\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpokes:\u003c\/strong\u003e\u003cspan\u003e Stainless steel 14G\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTyres:\u003c\/strong\u003e\u003cspan\u003e Schwalbe Little Joe Addix compound \/ 20\" x 1 ⅜\" \/ black with reflective stripe\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront Brake:\u003c\/strong\u003e\u003cspan\u003e C-Star alloy linear pull V-type \/ Jagwire Bowden cables\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear Brake:\u003c\/strong\u003e\u003cspan\u003e C-Star alloy linear pull V-type \/ Jagwire Bowden cables\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrake Levers:\u003c\/strong\u003e\u003cspan\u003e Alhonga junior alloy\/resin with adjustable reach\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandlebar:\u003c\/strong\u003e\u003cspan\u003e Sandblasted anodized aluminium \/ 560mm wide \/ Hi-rise BMX style \/ 22mm diameter \/ A-B-C markings\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrips:\u003c\/strong\u003e\u003cspan\u003e Ergonomic design \/ Ultra-slim diameter \/ Targeted comfort zone \/ Oversized ends \/ Integrated lock-on anti-twist clamp\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStem:\u003c\/strong\u003e\u003cspan\u003e Forged alloy A-head \/ 2-bolt recessed clamp bolts \/ 40mm extension \/ 15° rise\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSaddle:\u003c\/strong\u003e\u003cspan\u003e Ergonomic design \/ Waterproof and weather-resistant \/ Integrated GoPro mount\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeatpost:\u003c\/strong\u003e\u003cspan\u003e Integrated anodized aluminium \/ Quick-release \/ 25.4mm diameter \/ 260mm length \/ Anti-scratch shim \/ A-B-C markings\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- \/TABS --\u003e","published_at":"2025-03-16T20:10:30+00:00","created_at":"2025-03-16T19:59:47+00:00","vendor":"Woom","type":"BIKES","tags":["Age Group_6–9 years","Bike Type_Kids' Bikes","Brake Type_V type","Brand_Woom","Colour_Yellow","feed-promotion_id-287","Frame Material_Aluminium","Frame Size_12\"","Model Year_2025","Number of Gears_7","Suspension Type_Rigid","Wheel Size_20\""],"price":48500,"price_min":48500,"price_max":48500,"available":true,"price_varies":false,"compare_at_price":48500,"compare_at_price_min":48500,"compare_at_price_max":48500,"compare_at_price_varies":false,"variants":[{"id":46986151624956,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"100879-0000-5007","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"Woom GO 4 vibrant yellow","public_title":null,"options":["Default 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GO 4 vibrant yellow 20 inch wheel 7-speed ultralight children's bike.","id":36103822049532,"position":1,"preview_image":{"aspect_ratio":1.5,"height":2507,"width":3760,"src":"\/\/www.northbikes.co.uk\/cdn\/shop\/files\/WoomGO4yellow1.jpg?v=1742155231"},"aspect_ratio":1.5,"height":2507,"media_type":"image","src":"\/\/www.northbikes.co.uk\/cdn\/shop\/files\/WoomGO4yellow1.jpg?v=1742155231","width":3760},{"alt":"Woom GO 4 vibrant yellow 20 inch wheel 7-speed ultralight children's bike.","id":36103822115068,"position":2,"preview_image":{"aspect_ratio":1.5,"height":1480,"width":2220,"src":"\/\/www.northbikes.co.uk\/cdn\/shop\/files\/WoomGO4yellow2.jpg?v=1742155233"},"aspect_ratio":1.5,"height":1480,"media_type":"image","src":"\/\/www.northbikes.co.uk\/cdn\/shop\/files\/WoomGO4yellow2.jpg?v=1742155233","width":2220},{"alt":"Woom GO 4 adjustable reach brake 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handlebars.","id":36103822672124,"position":11,"preview_image":{"aspect_ratio":1.416,"height":1356,"width":1920,"src":"\/\/www.northbikes.co.uk\/cdn\/shop\/files\/WoomGO4yellow11.jpg?v=1742155309"},"aspect_ratio":1.416,"height":1356,"media_type":"image","src":"\/\/www.northbikes.co.uk\/cdn\/shop\/files\/WoomGO4yellow11.jpg?v=1742155309","width":1920},{"alt":"Woom GO 4 quick-release front wheel with Soopa Doopa Hoops rim and sealed bearing hub.","id":36103822704892,"position":12,"preview_image":{"aspect_ratio":1.5,"height":1280,"width":1920,"src":"\/\/www.northbikes.co.uk\/cdn\/shop\/files\/WoomGO4yellow9.jpg?v=1742155311"},"aspect_ratio":1.5,"height":1280,"media_type":"image","src":"\/\/www.northbikes.co.uk\/cdn\/shop\/files\/WoomGO4yellow9.jpg?v=1742155311","width":1920},{"alt":"microSHIFT 7-speed rear 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information.","id":36103822999804,"position":17,"preview_image":{"aspect_ratio":2.041,"height":1218,"width":2486,"src":"\/\/www.northbikes.co.uk\/cdn\/shop\/files\/WoomGO43_5ee68e08-f711-488a-8909-56bc669043c4.jpg?v=1742155349"},"aspect_ratio":2.041,"height":1218,"media_type":"image","src":"\/\/www.northbikes.co.uk\/cdn\/shop\/files\/WoomGO43_5ee68e08-f711-488a-8909-56bc669043c4.jpg?v=1742155349","width":2486}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cdiv\u003e    \u003cimg alt=\"Woom brand logo\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/woomLogotypeRedRGB_100x100.png?v=1696600063\"\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAge:\u003c\/strong\u003e  6 - 8 yrs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheel Size:\u003c\/strong\u003e  20\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame Size: \u003c\/strong\u003e\u003cspan\u003e 11.5\u003c\/span\u003e\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMin Inside Leg: \u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e20\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRider Height: \u003c\/strong\u003e\u003cspan\u003e 115 \u003c\/span\u003e- 130cm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e  Vibrant yellow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame Material:\u003c\/strong\u003e  Aluminium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Gears:\u003c\/strong\u003e  7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrake Type:\u003c\/strong\u003e  V-type\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWheels:\u003c\/strong\u003e  Full alloy (QR front)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTyres:\u003c\/strong\u003e  20\" x 1 ⅜\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e  7.8 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong style=\"color: green;\"\u003eMake your Woom bike even more special!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"text-decoration: underline;\"\u003e\u003ca href=\"https:\/\/www.northbikes.co.uk\/collections\/woom-accessories\"\u003e\u003cstrong\u003eClick here to see all Woom accessories\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c!-- TABS --\u003e\n\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe Woom GO 4 is a superlight bike with 20″ wheels and a safety-conscious design for kids aged 6 years and up.\u003cbr\u003e\u003cbr\u003eThe time has come for your child to get to grips with the gears... yay!  Shifting is so smooth on the Woom GO 4 that bike life is about to get even better.\u003cbr\u003e\u003cbr\u003eFrom now on, you and your child will be able to set off on longer-than-ever expeditions with uphill or downhill stretches.  7-speed gears in combination with an easy-to-operate twist grip shifter expand the bike's range of use and increase the child's mobility.\u003cbr\u003e\u003cbr\u003eWeighing in at only 7.8 kg (without pedals), the Woom GO 4 is a real lightweight.\u003cbr\u003e\u003cbr\u003eA whole world full of new and exciting adventures awaits!\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cstyle\u003e.embedtool {position: relative;height: 0;padding-top: 56%;overflow: hidden;max-width: 100%;} .embedtool iframe, .embedtool object, .embedtool embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } .embedtool .fluid-vids {position: initial !important}\u003c\/style\u003e\n\u003cdiv class=\"embedtool\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/SYRNBlk1lEo\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"margin-bottom: 10px; float: none;\" alt=\"Woom GO 4 red 20 inch wheel 7-speed ultralight children's bike.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO4red1_480x480.jpg?v=1742115024\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e Innovative frame\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA superlight aluminum frame is the heart of the bike.  Its smart geometry with low entry and upright riding position allows your child to get on, ride and get off again safely.  The long wheelbase and forgiving front-end geometry provide them with stability and guarantee a smooth ride.\u003cbr\u003eSuperlight = Superfun!\u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg style=\"margin-bottom: 10px; float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO42_480x480.jpg?v=1742116513\" alt=\"Woom GO 4 adjustable reach brake levers.\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e Child-specific brake levers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYour child won't struggle to bring their Woom GO 4 to a stop even if their hands aren't very strong.  That's down to high-quality Jagwire Bowden brake cables, ergonomic brake levers and small (but mighty) barrel adjusters that you can use to set the right distance between the brake lever and the handlebar grip.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO4red3_480x480.jpg?v=1742116513\" alt=\"Woom GO 4 red 20 inch wheel 7-speed ultralight children's bike.\" style=\"margin-bottom: 10px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e Protective handlebar grips\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWoom's high-quality handlebar grips have a narrow diameter and an ergonomic design so your child can comfortably hold on with a good grip.  The special material and extra large outer diameter keep your child safe, reducing the risk of them getting injured if they do happen to fall.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO4red7_480x480.jpg?v=1742116513\" alt=\"Woom GO 4 ergonomic crank arms with narrow Q-factor and large platform junior non-slip pedals.\" style=\"margin-bottom: 10px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eErgonomic cranks with narrow Q-factor\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe length of the high-quality cranks and the distance between the pedals have been perfectly adapted to fit with children's bodies.  This results in an optimum stance and natural movements that feel good, so there's no risk of your child getting their trouser leg caught thanks to the chainring guard.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg style=\"margin-bottom: 10px; float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO4red5_480x480.jpg?v=1742116513\" alt=\"Woom GO 4 7-speed microSHIFT twist shifter for intuitive shifting.\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eTwist shifter for intuitive shifting\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYour child will get to grips with the gears in no time thanks to the easy-to-use twist shifter and the child-friendly gear indicator.  They can shift to the next highest gear by twisting the shifter forward.  The little rider on the gear indicator will move towards the hare to show that your child is going faster.  A twist back will shift the gear down again and the little rider will move towards the tortoise to show that your child is slowing down – perhaps because they're tackling a climb.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO44_480x480.jpg?v=1742116513\" alt=\"Woom GO 4 practical quick-release front wheel.\" style=\"margin-bottom: 10px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eHandy quick-release wheel skewer\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA quick-release mechanism on the front wheel axle makes fast and easy work of dismounting and mounting the front wheel, so you can transport the Woom GO 4 by car with no trouble at all.  Quick removal and installation of a wheel is also super helpful if you get a flat tyre.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO4red4_480x480.jpg?v=1742116513\" alt=\"Woom GO 4 ergonomic saddle with integrated GoPro mount.\" style=\"margin-bottom: 10px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eErgonomic saddle\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe saddle has a major influence on the feel of the ride as it is one of the most important points of contact between the child and the bike.  That's why Woom has carefully designed their saddle to suit the pelvis of children in the relevant age group and unlock ultimate comfort.  Your child's ride couldn't be more comfortable!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO4red10_480x480.jpg?v=1742116513\" alt=\"Woom GO 4 practical quick-release seatpost clamp.\" style=\"margin-bottom: 10px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003ePractical quick-release seatpost clamp\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe quick-release seatpost clamp offers a simple, quick and tool-free way to adjust the saddle height.  It's even easy enough to be operated by children.  On your pedals, ready, go! \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/Woom45_480x480.jpg?v=1697304468\" alt=\"Schwalbe Little Joe tyres with reflective sidewalls.\" style=\"margin-bottom: 10px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eAll-round capable tyres\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTyres have a major influence on how a bike rides.  This is why Woom has chosen Schwalbe Little Joe tyres.  These high-quality, lightweight tyres are so grippy that your child can ride effortlessly and safely on any surface.  They can confidently cover gravel, tarmac and dirt, riding in a straight line or taking corners along the way, due to their superior grip.  A reflective stripe on the tyre sidewall ensures that your child is clearly visible, even in low-light conditions.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv style=\"text-align: start;\"\u003e\u003cimg alt=\"Woom GO 2 A-B-C bike fit guide on handlebars and seatpost.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0224\/5142\/1256\/files\/WoomGO2red8_480x480.jpg?v=1742053866\" style=\"margin-bottom: 10px; float: none;\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eBike fit guide on handlebars and seatpost\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA-B-C markings on the handlebars and seatpost make it easier for you to precisely adjust the Woom GO 4 so the bike can grow with your child.  Start by moving the saddle up or down so that your child can touch both feet to the floor and pedal comfortably.  Match the handlebar marking to the seatpost and your child is good to go.  How easy is that?\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e\u003cspan\u003e Aluminium alloy \/ AL 6061 series \/ Butted tubes\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFork:\u003c\/strong\u003e\u003cspan\u003e Aluminium alloy \/ Straight \u0026amp; slightly tapered leg\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeadset:\u003c\/strong\u003e\u003cspan\u003e Fully integrated threadless 1\" alloy A-head \/ Industrial-grade sealed bearings\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShifter:\u003c\/strong\u003e\u003cspan\u003e microSHIFT DS45 twist-grip \/ 1x7 speed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear Derailleur:\u003c\/strong\u003e\u003cspan\u003e microSHIFT M21SS\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFreewheel:\u003c\/strong\u003e\u003cspan\u003e Cassette \/ 11-28T \/ 7 speed\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChain:\u003c\/strong\u003e\u003cspan\u003e KMC\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChainset:\u003c\/strong\u003e\u003cspan\u003e Woom 28T narrow-wide chainring \/ Woom forged 110mm alloy crank arms \/ Small-pitch Q-factor\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChainguard: \u003c\/strong\u003e\u003cspan\u003e Single-sided aluminium\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePedals:\u003c\/strong\u003e\u003cspan\u003e Woom non-slip narrow flat platform with reflectors\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBottom Bracket:\u003c\/strong\u003e\u003cspan\u003e 3-piece crank system \/ Square taper \/ Sealed cartridge bearings\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRims:\u003c\/strong\u003e\u003cspan\u003e Woom 'Soopa-Doopa-Hoops' superlight aluminium \/ 20H\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront Hub:\u003c\/strong\u003e\u003cspan\u003e Woom 'HubCore' hollow alloy \/ Sealed bearings \/ Quick-release \/ 20H\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear Hub:\u003c\/strong\u003e\u003cspan\u003e Woom 'Hub 'N' Roll' hollow alloy \/ Sealed bearings \/ 5mm Allen hex bolt internal fixing \/ 20H\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpokes:\u003c\/strong\u003e\u003cspan\u003e Stainless steel 14G\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTyres:\u003c\/strong\u003e\u003cspan\u003e Schwalbe Little Joe Addix compound \/ 20\" x 1 ⅜\" \/ black with reflective stripe\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFront Brake:\u003c\/strong\u003e\u003cspan\u003e C-Star alloy linear pull V-type \/ Jagwire Bowden cables\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRear Brake:\u003c\/strong\u003e\u003cspan\u003e C-Star alloy linear pull V-type \/ Jagwire Bowden cables\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrake Levers:\u003c\/strong\u003e\u003cspan\u003e Alhonga junior alloy\/resin with adjustable reach\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandlebar:\u003c\/strong\u003e\u003cspan\u003e Sandblasted anodized aluminium \/ 560mm wide \/ Hi-rise BMX style \/ 22mm diameter \/ A-B-C markings\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrips:\u003c\/strong\u003e\u003cspan\u003e Ergonomic design \/ Ultra-slim diameter \/ Targeted comfort zone \/ Oversized ends \/ Integrated lock-on anti-twist clamp\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStem:\u003c\/strong\u003e\u003cspan\u003e Forged alloy A-head \/ 2-bolt recessed clamp bolts \/ 40mm extension \/ 15° rise\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSaddle:\u003c\/strong\u003e\u003cspan\u003e Ergonomic design \/ Waterproof and weather-resistant \/ Integrated GoPro mount\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeatpost:\u003c\/strong\u003e\u003cspan\u003e Integrated anodized aluminium \/ Quick-release \/ 25.4mm diameter \/ 260mm length \/ Anti-scratch shim \/ A-B-C markings\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- \/TABS --\u003e"}

Woom GO 4 vibrant yellow

North Bikes - We specialise in premium lightweight kids’ bikes
    Woom brand logo
  • Age:  6 - 8 yrs
  • Wheel Size:  20"
  • Frame Size:  11.5"
  • Min Inside Leg:  20"
  • Rider Height:  115 - 130cm
  • Colour:  Vibrant yellow
  • Frame Material:  Aluminium
  • Number of Gears:  7
  • Brake Type:  V-type
  • Wheels:  Full alloy (QR front)
  • Tyres:  20" x 1 ⅜"
  • Weight:  7.8 kg

Make your Woom bike even more special!

Click here to see all Woom accessories

£485.00
Maximum quantity available reached.


The Woom GO 4 is a superlight bike with 20″ wheels and a safety-conscious design for kids aged 6 years and up.

The time has come for your child to get to grips with the gears... yay!  Shifting is so smooth on the Woom GO 4 that bike life is about to get even better.

From now on, you and your child will be able to set off on longer-than-ever expeditions with uphill or downhill stretches.  7-speed gears in combination with an easy-to-operate twist grip shifter expand the bike's range of use and increase the child's mobility.

Weighing in at only 7.8 kg (without pedals), the Woom GO 4 is a real lightweight.

A whole world full of new and exciting adventures awaits!


 

 

 

Woom GO 4 red 20 inch wheel 7-speed ultralight children's bike.

Innovative frame

A superlight aluminum frame is the heart of the bike.  Its smart geometry with low entry and upright riding position allows your child to get on, ride and get off again safely.  The long wheelbase and forgiving front-end geometry provide them with stability and guarantee a smooth ride.
Superlight = Superfun!

Woom GO 4 adjustable reach brake levers.

Child-specific brake levers

Your child won't struggle to bring their Woom GO 4 to a stop even if their hands aren't very strong.  That's down to high-quality Jagwire Bowden brake cables, ergonomic brake levers and small (but mighty) barrel adjusters that you can use to set the right distance between the brake lever and the handlebar grip.

 

Woom GO 4 red 20 inch wheel 7-speed ultralight children's bike.

Protective handlebar grips

Woom's high-quality handlebar grips have a narrow diameter and an ergonomic design so your child can comfortably hold on with a good grip.  The special material and extra large outer diameter keep your child safe, reducing the risk of them getting injured if they do happen to fall.

 

 

 

Woom GO 4 ergonomic crank arms with narrow Q-factor and large platform junior non-slip pedals.

Ergonomic cranks with narrow Q-factor

The length of the high-quality cranks and the distance between the pedals have been perfectly adapted to fit with children's bodies.  This results in an optimum stance and natural movements that feel good, so there's no risk of your child getting their trouser leg caught thanks to the chainring guard.

 

 

 

Woom GO 4 7-speed microSHIFT twist shifter for intuitive shifting.

Twist shifter for intuitive shifting

Your child will get to grips with the gears in no time thanks to the easy-to-use twist shifter and the child-friendly gear indicator.  They can shift to the next highest gear by twisting the shifter forward.  The little rider on the gear indicator will move towards the hare to show that your child is going faster.  A twist back will shift the gear down again and the little rider will move towards the tortoise to show that your child is slowing down – perhaps because they're tackling a climb.

 

 

 

Woom GO 4 practical quick-release front wheel.

Handy quick-release wheel skewer

A quick-release mechanism on the front wheel axle makes fast and easy work of dismounting and mounting the front wheel, so you can transport the Woom GO 4 by car with no trouble at all.  Quick removal and installation of a wheel is also super helpful if you get a flat tyre.

 

 

 

Woom GO 4 ergonomic saddle with integrated GoPro mount.

Ergonomic saddle

The saddle has a major influence on the feel of the ride as it is one of the most important points of contact between the child and the bike.  That's why Woom has carefully designed their saddle to suit the pelvis of children in the relevant age group and unlock ultimate comfort.  Your child's ride couldn't be more comfortable!

 

 

 

Woom GO 4 practical quick-release seatpost clamp.

Practical quick-release seatpost clamp

The quick-release seatpost clamp offers a simple, quick and tool-free way to adjust the saddle height.  It's even easy enough to be operated by children.  On your pedals, ready, go! 

 

 

Schwalbe Little Joe tyres with reflective sidewalls.

All-round capable tyres

Tyres have a major influence on how a bike rides.  This is why Woom has chosen Schwalbe Little Joe tyres.  These high-quality, lightweight tyres are so grippy that your child can ride effortlessly and safely on any surface.  They can confidently cover gravel, tarmac and dirt, riding in a straight line or taking corners along the way, due to their superior grip.  A reflective stripe on the tyre sidewall ensures that your child is clearly visible, even in low-light conditions.

 

 

 

Woom GO 2 A-B-C bike fit guide on handlebars and seatpost.

Bike fit guide on handlebars and seatpost

A-B-C markings on the handlebars and seatpost make it easier for you to precisely adjust the Woom GO 4 so the bike can grow with your child.  Start by moving the saddle up or down so that your child can touch both feet to the floor and pedal comfortably.  Match the handlebar marking to the seatpost and your child is good to go.  How easy is that?


  • Frame: Aluminium alloy / AL 6061 series / Butted tubes
  • Fork: Aluminium alloy / Straight & slightly tapered leg
  • Headset: Fully integrated threadless 1" alloy A-head / Industrial-grade sealed bearings
  • Shifter: microSHIFT DS45 twist-grip / 1x7 speed
  • Rear Derailleur: microSHIFT M21SS
  • Freewheel: Cassette / 11-28T / 7 speed
  • Chain: KMC
  • Chainset: Woom 28T narrow-wide chainring / Woom forged 110mm alloy crank arms / Small-pitch Q-factor
  • Chainguard: Single-sided aluminium
  • Pedals: Woom non-slip narrow flat platform with reflectors
  • Bottom Bracket: 3-piece crank system / Square taper / Sealed cartridge bearings
  • Rims: Woom 'Soopa-Doopa-Hoops' superlight aluminium / 20H
  • Front Hub: Woom 'HubCore' hollow alloy / Sealed bearings / Quick-release / 20H
  • Rear Hub: Woom 'Hub 'N' Roll' hollow alloy / Sealed bearings / 5mm Allen hex bolt internal fixing / 20H
  • Spokes: Stainless steel 14G
  • Tyres: Schwalbe Little Joe Addix compound / 20" x 1 ⅜" / black with reflective stripe
  • Front Brake: C-Star alloy linear pull V-type / Jagwire Bowden cables
  • Rear Brake: C-Star alloy linear pull V-type / Jagwire Bowden cables
  • Brake Levers: Alhonga junior alloy/resin with adjustable reach
  • Handlebar: Sandblasted anodized aluminium / 560mm wide / Hi-rise BMX style / 22mm diameter / A-B-C markings
  • Grips: Ergonomic design / Ultra-slim diameter / Targeted comfort zone / Oversized ends / Integrated lock-on anti-twist clamp
  • Stem: Forged alloy A-head / 2-bolt recessed clamp bolts / 40mm extension / 15° rise
  • Saddle: Ergonomic design / Waterproof and weather-resistant / Integrated GoPro mount
  • Seatpost: Integrated anodized aluminium / Quick-release / 25.4mm diameter / 260mm length / Anti-scratch shim / A-B-C markings