Stumpjumper 15 EVO Alloy is 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.
- Six-way geometry adjustment, mixed wheel or 29”, tunable spring curve, and more. Six distinct geometry settings allow you to hone performance for any style, any terrain. Head angle and bottom bracket height can be fine-tuned for stability or clearance.
- This 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.
- With our aftermarket 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.
- SWAT on Stumpjumper 15 Alloy elevates downtube storage, an innovation we pioneered.
- Our full suspension bikes are built to be relentless, designed to endure years of hard riding and backed by the best support and policies to keep you on the trail. Our unbeatable lifetime, no-questions-asked replacement of suspension pivot bearings to the original owner is just one way we’ve got you covered.
- All-new M5 alloy frame with SWAT door integration
- Ride Dynamics tuned X-Fusion 02 Pro RL shock with adjustable rebound and lockout
- RockShox Deluxe Select
- Reliable SRAM DB6 4-piston brakes
- 12-speed SRAM NX drivetrain
- Lifetime replacement of suspension pivot bearings to the original owner
Specialized Geometry Finder: All the geometry information and detail you need for Stumpjumper 15.
| FRAME | M5 alloy chassis and rear-end, Trail Geometry, SWAT™ Door integration, head tube angle adjustment, threaded BB, internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, SRAM UDH compatible, 145mm of travel |
| SEAT BINDER | Alloy, 38.6 |
| SWAT | Internal SWAT Downtube Storage |
| REAR SHOCK | RockShox Deluxe Select |
| FORK | RockShox, Psylo Silver, Motion Control Damper, 15×110 axle, 44mm offset, S1:150mm of travel, S2-S6:160mm of travel |
| STEM | Alloy Trail Stem, 35mm bar bore |
| HANDLEBARS | Specialized, 6000 series alloy, 6-degree upsweep, 8-degree backsweep. |
| GRIPS | Specialized Trail Grips |
| SADDLE | Body Geometry Bridge Saddle, steel rails, S1-S2:155mm, S3-S6:143mm |
| SEATPOST | TranzX dropper, 34.9mm, S1: 125mm, S2: 150mm, S3: 175mm. S4-S6: 200mm |
| FRONT BRAKE | SRAM DB6, 4-piston caliper, hydraulic disc |
| REAR BRAKE | SRAM DB6, 4-piston caliper, hydraulic disc |
| REAR DERAILLEUR | SRAM NX Eagle, 12-speed |
| SHIFT LEVERS | SRAM NX Eagle, trigger, 12-speed |
| CASSETTE | SRAM NX Eagle, 12-speed, 11-50t |
| CHAIN | SRAM NX Eagle, 12-speed |
| CRANKSET | SRAM NX Eagle, DUB, S1-S3:165, S4-S6: 170mm |
| CHAINRINGS | 32T |
| RIMS | Specialized, hookless alloy, 30mm inner width, tubeless ready, Front: 29, Rear: S1-S2: 27.5, S3- S6: 29 |
| FRONT HUB | Specialized alloy front hub disc, sealed cartridge bearings, 6-bolt, 15x110mm thru-axle, 28h |
| REAR HUB | Specialized alloy rear hub disc, sealed cartridge bearings, 6-Bolt, 12X148mm thru-axle, 28h, HD Steel Fhb |
| SPOKES | Stainless, 14g |
| FRONT TIRE | Butcher, GRID TRAIL casing, GRIPTON® T9 compound, 2Bliss Ready, 29×2.4″ |
| REAR TIRE | Eliminator, GRID TRAIL casing, GRIPTON® T7 compound, 2Bliss Ready, 29×2.4″ |
| INNER TUBES | Standard, Presta valve |
| * | Specifications subject to change without notice. |
| S1 | S2 | S3 | S4 | S5 | S6 | |
|---|---|---|---|---|---|---|
| Crank Length | 165 | 165 | 165 | 170 | 170 | 170 |
| Handlebar Width | 780 | 780 | 800 | 800 | 800 | 800 |
| Stem Length | 40 | 40 | 40 | 40 | 40 | 40 |
| Saddle Width | 155 | 155 | 143 | 143 | 143 | 143 |
| Seatpost Length | 125 | 150 | 170 | 190 | 190 | 190 |
| Stack | 611 | 621 | 630 | 644 | 658 | 671 |
| Reach | 400 | 420 | 445 | 470 | 495 | 525 |
| Headtube Length | 95 | 100 | 110 | 125 | 140 | 155 |
| Headtube Angle | 64 | 64 | 64 | 64 | 64 | 64 |
| BB Height | 337 | 340 | 340 | 340 | 340 | 340 |
| BB Drop | 38 | 35 | 35 | 35 | 35 | 35 |
| Trail | 133 | 134 | 134 | 134 | 134 | 134 |
| Fork Length (full) | 561 | 573 | 573 | 573 | 573 | 573 |
| Fork Rake/Offset | 44 | 44 | 44 | 44 | 44 | 44 |
| Front Center | 724 | 755 | 785 | 816 | 848 | 884 |
| Chainstay Length | 430 | 432 | 435 | 435 | 445 | 445 |
| Wheelbase | 1153 | 1186 | 1217 | 1249 | 1290 | 1327 |
| Top-tube Length (horizontal) | 542 | 574 | 596 | 625 | 649 | 678 |
| Bike Standover Height | 738 | 751 | 745 | 745 | 745 | 751 |
| Seat Tube Length | 385 | 385 | 405 | 425 | 445 | 465 |
| Seat Tube Angle | 77.7 | 76.5 | 76.5 | 76 | 76 | 76 |
| Saddle Height for Effective ST Angle | 825 | 870 | 645 | 690 | 735 | 780 |
| Max Seatpost Insertion | 245 | 245 | 255 | 255 | 285 | 285 |
| Min Seatpost Insertion | 80 | 80 | 80 | 80 | 80 | 80 |
About Specialized
As their motto says, “Made for riders, by riders”. Specialized made the first production mountain bike in 1974, and since then they have been industry leaders. From lightweight carbon race bikes, innovative kids bikes, class leading e-bikes and tyres & accessories, Specialized continue to push boundaries.







