Specialized S-Works Stumpjumper 15 EVO Mountain Bike Description:
The Specialized S-Works Stumpjumper 15 EVO Mountain Bike is a supremely capable and versatile mountain bike that is ready to get rowdy on the trails. The backbone of this incredible rig is a stiff and strong FACT 11m carbon fiber chassis and rear triangle moving on sealed cartridge bearings that will allow this bike to track straight and true over gnarly, technical terrain. Low within the downtube sits a large SWAT 4.0 internal storage compartment with plenty of room to haul essential gear, and a latching door makes it easy to access the contents while keeping out trail grime and moisture. While the standard geometry of the bike produces a commanding riding position and confident handling, this bike is equipped with geometry adjustability so the handling can be dialed for any trail and to the rider’s preferences.
Attached to this chassis are a bevy of parts that further enhances the performance and versatility of this bike. A Fox 36 Factory suspension fork paired with a Float X (equipped with proprietary GENIE internals) work in tandem to keep this bike planted and tracking true over rough terrain. Shimano’s lightweight and rugged XTR components deliver precise shifting on demand and have plenty of gearing to take the rider anywhere they want to go, and powerful XTR 4-piston hydraulic disc brakes paired to large rotors keep the speeds in check. Everything rolls on Roval Traverse SL II hookless carbon fiber rims laced to Industry 9 Hydra 2 hubs so hills and trail obstacles will not slow down the good times, and durable tubeless ready Butcher and Eliminator tires deliver confident traction over a wide variety of trail surfaces and weather conditions. Last but not least, a Race Face ERA handlebar and a Specialized Power saddle sitting on top of a FOX Transfer NEO Factory wireless dropper seatpost provide comfortable contact points so the rider can spend more time having a great time on the trails.
Features:
- Trail bike for riders that want to push their limits when going downhill and still be able to ride uphill and anywhere else the trail takes them
- Lightweight FACT 11m carbon is used throughout the main frame, rear triangle, and the suspension linkage to create a rugged and very stiff frame
- SWAT 4.0 internal downtube storage with a secure latched cover has the room to carry all sorts of tools and gear, and that gear weight within the frame will lower the bike’s center of gravity and improve the bikes handling
- Adjustable headtube angle and BB height allows a rider to fine tune bikes handling characteristics and ground clearance to suit their riding style
- Fox Float X rear shock with GENIE internals is a two-stage air spring shock that keeps the rear wheel planted over the rough stuff like a coil sprung shock with the bottoming out resistance and tunability of an air shock
- FOX Suspension Float 36 Factory fork with GRIP X2 damper internals delivers pin-point bike control and is easily adjusted to match the performance of the rear suspension
- FOX Transfer Neo Factory wireless dropper seatpost delivers incredibly fast adjustments to the saddle height without the need of cables or wires
- Roval Traverse SL II carbon fiber hookless rims laced to Industry 9 Hydra 2 hubs make it very easy for a rider to roll over obstacles, fly up hills, and also have the stiffness and strength to confidently bomb down technical downhills
- Tubeless Ready Specialized Butcher/Eliminator tires have great all-around traction and the toughness to hold up to rugged terrain
- Shimano XTR Wireless Di2 drivetrain provides crisp, lightning quick shifts and has a very broad 1 x 12-speed gear range so a rider can always get into the right gear for where they are riding
- Powerful, 4-piston Shimano XTR hydraulic disc brakes with large rotors front and rear are very easy to modulate for timely speed checks and confidently perform over any terrain and in any weather
Specifications:
- Frame: FACT 11m Carbon Main Frame, Chainstays, Seatstays, & Link (145mm Travel) (SWAT 4.0 Internal Downtube Storage) (Internal Brake & Dropper Seatpost Cable Routing) (Adjustable Trail Geo) (Threaded BB) (Sealed Cartridge Bearing Pivots) (12 x 148mm) (SRAM UDH)
- Fork: FOX FLOAT 36 Factory (GRIP X2 damper) (High Speed & Low Speed Rebound & Compression Adjustment) (44mm offset) (15 x 110mm Kabolt Thru Axle) (S1:150mm of travel, S2-S6:160mm of travel)
- Rear Shock: FOX FLOAT X Factory with Specialized GENIE Shock Tech (Ride Dynamics Trail Tune) (2-Pos Lever) (Low Speed Compression & Rebound Adjustment) (145mm Travel) (210 x 55mm)
- Headset: IS42/30 (Upper) | IS52/40 (Lower) (1-1/8″ – 1.5″ Tapered)
- Handlebar: Race Face ERA Carbon (5° upsweep, 8° backsweep) (800mm Width) (S1-S2: 20mm rise: S3-S6: 55mm rise) (35mm Clamp Diameter)
- Grips: Deity Lockjaw
- Stem: Race Face Turbine R (35mm Handlebar Clamp Diameter)
- Brake Levers: Shimano XTR (Hydraulic) (Mineral Oil)
- Rotors: 203mm rotor (Front) | S1-S2: 180mm, S3-S6: 203mm (Rear)
- Brakes: Shimano XTR (Hydraulic) (4-Piston)
- Shifter: Shimano XTR Di2 (12 Speed)
- Rear Derailleur: Shimano XTR Di2 RD-M9250 (12 Speed)
- Crank: Shimano XTR (32T) (55mm Chainline) (S1-S3: 165mm, S4-S6: 170mm)
- Bottom Bracket: Shimano BB93 (BSA, Threaded)
- Cassette: Shimano XTR CS-M9200 (12 Speed) (10-51T)
- Chain: Shimano XTR w/ Quick Link (12 Speed)
- Pedals: –
- Saddle: S-Works Power Mirror (Titanium Rails) (S1-S2:155mm, S3-S6:143mm)
- Seatpost: FOX Transfer NEO Factory (Wireless) (S1: 125mm, S2: 150mm, S3: 175mm, S4-S6: 200mm)
- Rims: Roval Traverse SL II (Hookless Carbon) (30mm Inner Width) (Tubeless Ready)
- Front Hub: Industry 9 Hydra 2 (15 x 110mm) (28h) (6-Bolt)
- Rear Hub: Industry 9 Hydra 2 (12 x 148mm) (28h) (6-Bolt)
- Spokes: DT Swiss Revolite
- Front Tire: Specialized Butcher (GRID TRAIL Casing) (T9 compound) (Tubeless Ready) (29 x 2.4″)
- Rear Tire: Specialized Eliminator (GRID TRAIL Casing) (T7 compound) (Tubeless Ready) (S1-S2: 27.5×2.4″, S3- S6: 29×2.4″)
- Model Year: 2026
- Color: Gloss Dolomite Metallic / Smoked Liquid Metal
- Weight: 30 lb, 12.1 oz (S4)


























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