{"product_id":"marin-bear-valley-20-2027","title":"Bear Valley 20 2027","description":"\u003cp\u003eThe \u003cstrong\u003eMarin Bear Valley 20\u003c\/strong\u003e represents a meticulously engineered entry point into serious mountain biking for young riders. This model combines a lightweight aluminium frame with authentic MTB geometry, paired with a Series 1 aluminium fork that absorbs trail feedback without compromising control. The drivetrain features MicroSHIFT Acolyte's 1x8 wide-range transmission with a clutch-equipped rear derailleur, delivering smooth, reliable gear changes across varied terrain. Tektro hydraulic disc brakes with ergonomic, child-scaled levers provide confident stopping power in all conditions. Complementing the core components is Marin's comprehensive suite of proprietary kid-specific parts—from grips to pedals—each refined through extensive development. The result is a cohesive platform that prioritizes both performance and rider comfort, making it an exceptionally well-considered choice for young cyclists ready to progress beyond casual riding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSizing:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOne Size \u003cspan\u003e4'1\" \u003c\/span\u003e\u003cspan class=\"sizing-chart__dash\"\u003eto\u003c\/span\u003e\u003cspan\u003e 4'8\"\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003cbr\u003eFrame \u003c\/strong\u003e- Series 2 Lightweight Aluminium MTB, Low Standover, 20” Wheels, Replaceable Derailleur Hanger, Disc Brake\u003cbr\u003e\u003cstrong\u003eFork \u003c\/strong\u003e- Series 2 Aluminium MTB, Disc Brake A\u003cbr\u003e\u003cstrong\u003eRim \u003c\/strong\u003e- Marin, Double Wall Alloy\u003cbr\u003e\u003cstrong\u003eHub, rear\u003c\/strong\u003e - Forged Aluminium Alloy, 28H\u003cbr\u003e\u003cstrong\u003eHub, front\u003c\/strong\u003e - Forged Aluminium Alloy, 28H\u003cbr\u003e\u003cstrong\u003eSpoke, nipples\u003c\/strong\u003e - 14g Stainless Steel\u003cbr\u003e\u003cstrong\u003eTyres \u003c\/strong\u003e- Kenda, Booster, 20x2.4\", Wire Bead\u003cbr\u003e\u003cstrong\u003eDerailleur, Rear\u003c\/strong\u003e - MicroSHIFT Acolyte, 8-Speed, Super Short Cage, Clutch\u003cbr\u003e\u003cstrong\u003eDerailleur, Front\u003c\/strong\u003e - n\/a\u003cbr\u003e\u003cstrong\u003eShift Lever\u003c\/strong\u003e - MicroSHIFT Acolyte, Short-Reach, 8-Speed\u003cbr\u003e\u003cstrong\u003eCrankset \u003c\/strong\u003e- Forged Alloy, 30T, 115mm, Ring Guard\u003cbr\u003e\u003cstrong\u003eBottom Bracket\u003c\/strong\u003e - Sealed Cartridge Bearings, Square Taper\u003cbr\u003e\u003cstrong\u003eChain \u003c\/strong\u003e- KMC 8-Speed\u003cbr\u003e\u003cstrong\u003eCassette \u003c\/strong\u003e- MicroSHIFT Acolyte, 8-Speed, 11-38T\u003cbr\u003e\u003cstrong\u003eBrake, Front \u003c\/strong\u003e- Tektro HD-J285 Kid's Specific Hydraulic Disc\u003cbr\u003e\u003cstrong\u003eBrake, Rear\u003c\/strong\u003e - Tektro HD-J285 Kid's Specific Hydraulic Disc\u003cbr\u003e\u003cstrong\u003eBrake Levers\u003c\/strong\u003e - Hydraulic Kid's Specific Short Reach Alloy Lever\u003cbr\u003e\u003cstrong\u003eHandlebar \u003c\/strong\u003e- Marin Riser, 50mm Rise, 580mm Width, 19mm OD Grip Section\u003cbr\u003e\u003cstrong\u003eStem \u003c\/strong\u003e- Alloy, 45mm\u003cbr\u003e\u003cstrong\u003eGrips \u003c\/strong\u003e- Single Densitiy, Thin Diameter Grip\u003cbr\u003e\u003cstrong\u003eHeadset \u003c\/strong\u003e- Threadless\u003cbr\u003e\u003cstrong\u003eSeatpost \u003c\/strong\u003e- Aluminium, 27.2mm, Integrated Saddle\/Post\u003cbr\u003e\u003cstrong\u003eSaddle \u003c\/strong\u003e- Marin 24\" Integrated Saddle\/Post\u003cbr\u003e\u003cstrong\u003ePedals \u003c\/strong\u003e- Kids Specific Nylon Pedal\u003c\/p\u003e","brand":"Marin","offers":[{"title":"Black\/Green \/ One Size","offer_id":56375423435126,"sku":"740740001","price":479.0,"currency_code":"GBP","in_stock":true},{"title":"Orange\/Blue \/ One Size","offer_id":56375423467894,"sku":"740741001","price":479.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0568\/3065\/6691\/files\/marin-bear-valley-20-2026-black-green-one-size-1200417890.jpg?v=1761756552","url":"https:\/\/www.biketart.com\/products\/marin-bear-valley-20-2027","provider":"Biketart","version":"1.0","type":"link"}