The Specialized S-Works Stumpjumper 15 Frame is built for those who accept no compromises on the trail. It's the heart of the new generation Stumpy: the perfect base to build a bike capable of devouring the toughest passages like a long-travel, but with the responsiveness and efficiency of a modern aggressive trail/XC bike. At the core is GENIE technology, the innovative air spring that combines the sensitivity and control of a coil with the progressiveness and adjustability of air. The result is a snappy, playful ride that simultaneously absorbs the harshest impacts without bottoming out. The geometry has been refined to offer stability on technical sections, agility on tight singletracks, and climbing efficiency, while numerous adjustment options allow you to tailor the bike's behavior to your needs: six geometry settings, mullet or full 29 setup, and compression curve adaptable to your style. All this is complemented by the integrated SWAT 4.0 storage in the down tube, to carry everything you need without a backpack and without compromising the clean look of the frame. With the S-Works Stumpjumper 15 Frame, you have the ultimate platform to create your dream trail bike, designed for one biker: you.
S-Works Stumpjumper 15 Frame main features:
- GENIE technology: proprietary air spring combining coil-like feel and air progressiveness, with an adjustable platform for playful and controlled ride
- Impact management improved by 16.3% over a traditional air shock, with downhill behavior comparable to bikes with greater travel
- 57% superior traction compared to a standard air spring thanks to softer, continuous response that keeps the wheel glued to the ground
- 39% reduction of bottom out events due to progressive curve in last 30% of GENIE travel
- Refined geometry for stability on technical terrain, agility in tight sections, and climbing efficiency
- Wide cockpit positioning you at the center of the bike, improving traction and cornering control
- Low bottom bracket, relaxed head angle, and optimized fork offset for greater confidence at high speeds
- Six geometry settings to adapt head angle and bottom bracket height to your style and routes
- 29/29 wheel compatibility or mullet setup (27.5” rear) via aftermarket links without altering geometry
- Integrated SWAT 4.0 storage compartment in the down tube for securely carrying tools, spares, and snacks
- Frame platform designed for maximum build customization: ideal for creating your custom S-Works Stumpjumper 15
Technical Specifications Frame and Suspension
- Frame: FACT 11m carbon chassis, rear triangle and link in FACT 11m carbon, Trail Geometry, integrated SWAT™ Door, adjustable head tube angle, threaded bottom bracket, internal routing for brake and dropper post cables, 12x148 mm rear axle spacing, sealed cartridge bearing pivots, SRAM UDH compatible, 145 mm of rear travel.
- SWAT System: SWAT 4.0 internal downtube storage compartment.
- Seat Collar: Alloy, 38.6 mm diameter.
- Rear Shock: FOX FLOAT Factory with Specialized GENIE Shock Technology, Ride Dynamics Trail Tune, 2-position lever with 3 settings in Open mode tuning range, Low-Speed Rebound (LSR) adjustment. Sizes:
- S1: 210 x 52.5 mm
- S2–S6: 210 x 55 mm
- Frame Weight: 2.84 kg (6 lb, 4.2 oz).
- Measured Size: S4.
The Specialized S-Works Stumpjumper 15 Frame is built for those who accept no compromises on the trail. It's the heart of the new generation Stumpy: the perfect base to build a bike capable of devouring the toughest passages like a long-travel, but with the responsiveness and efficiency of a modern aggressive trail/XC bike. At the core is GENIE technology, the innovative air spring that combines the sensitivity and control of a coil with the progressiveness and adjustability of air. The result is a snappy, playful ride that simultaneously absorbs the harshest impacts without bottoming out. The geometry has been refined to offer stability on technical sections, agility on tight singletracks, and climbing efficiency, while numerous adjustment options allow you to tailor the bike's behavior to your needs: six geometry settings, mullet or full 29 setup, and compression curve adaptable to your style. All this is complemented by the integrated SWAT 4.0 storage in the down tube, to carry everything you need without a backpack and without compromising the clean look of the frame. With the S-Works Stumpjumper 15 Frame, you have the ultimate platform to create your dream trail bike, designed for one biker: you.
S-Works Stumpjumper 15 Frame main features:
- GENIE technology: proprietary air spring combining coil-like feel and air progressiveness, with an adjustable platform for playful and controlled ride
- Impact management improved by 16.3% over a traditional air shock, with downhill behavior comparable to bikes with greater travel
- 57% superior traction compared to a standard air spring thanks to softer, continuous response that keeps the wheel glued to the ground
- 39% reduction of bottom out events due to progressive curve in last 30% of GENIE travel
- Refined geometry for stability on technical terrain, agility in tight sections, and climbing efficiency
- Wide cockpit positioning you at the center of the bike, improving traction and cornering control
- Low bottom bracket, relaxed head angle, and optimized fork offset for greater confidence at high speeds
- Six geometry settings to adapt head angle and bottom bracket height to your style and routes
- 29/29 wheel compatibility or mullet setup (27.5” rear) via aftermarket links without altering geometry
- Integrated SWAT 4.0 storage compartment in the down tube for securely carrying tools, spares, and snacks
- Frame platform designed for maximum build customization: ideal for creating your custom S-Works Stumpjumper 15
Technical Specifications Frame and Suspension
- Frame: FACT 11m carbon chassis, rear triangle and link in FACT 11m carbon, Trail Geometry, integrated SWAT™ Door, adjustable head tube angle, threaded bottom bracket, internal routing for brake and dropper post cables, 12x148 mm rear axle spacing, sealed cartridge bearing pivots, SRAM UDH compatible, 145 mm of rear travel.
- SWAT System: SWAT 4.0 internal downtube storage compartment.
- Seat Collar: Alloy, 38.6 mm diameter.
- Rear Shock: FOX FLOAT Factory with Specialized GENIE Shock Technology, Ride Dynamics Trail Tune, 2-position lever with 3 settings in Open mode tuning range, Low-Speed Rebound (LSR) adjustment. Sizes:
- S1: 210 x 52.5 mm
- S2–S6: 210 x 55 mm
- Frame Weight: 2.84 kg (6 lb, 4.2 oz).
- Measured Size: S4.
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