{"product_id":"specialized-stumpjumper-alloy-mountain-bike-2025-gloss-white-mountains","title":"Specialized Stumpjumper Alloy 2025 - Gloss White Mountains","description":"\u003cdiv class=\"ProductLongDescription__Html\"\u003e\n\u003cdiv\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSpecialized Stumpjumper Alloy Mountain Bike\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis here to obliterate every trade-off in the trail game. Devour bumps like a big bike? Check. Short-travel control, playfulness, and efficiency? Double check. How about a heaping helping of personalization to make it perfect for the only rider who really matters—you? Check, check, check.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKINEMATICS PERFECTED:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAs the quintessential trail bike, Stumpjumper 15 Alloy balances efficiency and optimal bump force management. For the anti-squat on Stumpjumper 15 Alloy, we struck a balance between the previous Stumpjumper and Stumpjumper EVO, as both had excellent pedaling characteristics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHONED GEOMETRY:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThis bike’s geometry delivers big bike capability when you need it, a nimble feel in tight sections, and lively, efficient climbing manners. The generous cockpit centers you on the bike, optimizing traction and corner control. The low bottom bracket, slack head tube angle, and optimized fork offset keep things stable in the rough.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRIDE YOUR WAY:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe Stumpjumper 15 Alloy seamlessly integrates benchmark geo adjustability, making it the most personalizable trail bike ever. Six distinct geometry settings allow you to hone performance for any style and any terrain. The head angle and bottom bracket can be fine-tuned for stability or clearance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFORM FOLLOWS FUN:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSpecialized can make a frame as stiff as they want, but there’s such a thing as too stiff. To be one with the bike requires engineered compliance in the frame. They engineered the M5 Alloy chassis—front end, rear end, and the link between them—as a single unit that hits the stiffness target we established for trail riding.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWHEEL CHOICE:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWith our aftermarket link shock links, you can choose between big wheels front and rear or mix things up with a 27.5” rear for a more responsive and playful ride. No matter what you choose, geometry is unaffected.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCARRY IT ALL:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSWAT on Stumpjumper 15 elevates downtube storage, an innovation they pioneered.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMORE RELENTLESS THAN YOU:\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003eSpecialized full-suspension bikes are built to be relentless, designed to endure years of hard riding, and backed by the best support and programs to keep you on the trail. The unbeatable lifetime, no-questions-asked replacement suspension pivot bearings to the original owner is just one way we've got you covered.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecialized Stumpjumper Alloy Mountain Bike Highlights\u003c\/strong\u003e\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eAll-new M5 alloy frame with SWAT door integration\u003c\/li\u003e\n\u003cli\u003eRide Dynamics tuned X-Fusion 02 Pro RL shock with adjustable rebound and lockout\u003c\/li\u003e\n\u003cli\u003eRockShox Psylo Silver fork with Motion Control Damper\u003c\/li\u003e\n\u003cli\u003eReliable Shimano MT-420 4-piston brakes\u003c\/li\u003e\n\u003cli\u003e12-speed Shimano Deore drivetrain\u003c\/li\u003e\n\u003cli\u003eLifetime replacement of suspension pivot bearings to the original owner\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Biketreks Grizedale","offers":[{"title":"S3","offer_id":58440568963453,"sku":null,"price":2750.0,"currency_code":"GBP","in_stock":true},{"title":"S4","offer_id":58440568996221,"sku":null,"price":2750.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0477\/2279\/1061\/files\/specialized-stumpjumper-alloy-mountain-bike-2025-gloss-white-mountainsdark-moss-green.webp?v=1785056712","url":"https:\/\/www.grizedale-bikes.co.uk\/products\/specialized-stumpjumper-alloy-mountain-bike-2025-gloss-white-mountains","provider":"Biketreks Grizedale","version":"1.0","type":"link"}