Description

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 mattersyou? Check, check, check.

BREAKTHROUGH CAPABILITY: GENIE Shock Technology combines a poppy, playful ride with a bottomless DH feel.

ULTIMATE CONTROL: Measurably better traction than Bike of the Year Stumpjumper EVO.

UNMATCHED PERSONALIZATION: Six-way geometry adjustment, mixed wheel or 29, tunable spring curve, and more.

GENIEThe Magic Carpet Ride: The biggest innovation on the Stumpjumper 15 Alloy is GENIE. This patent-pending air spring technology we invented grants every trail rider three wishes: the maximum grip and traction of a coil spring feel, better bottom-out prevention than a standard air spring, and the ability to tune mid-stroke and end-stroke support independently.

ILLUMINATING GENIE: GENIE combines the control-enhancing linear spring rate of a coil spring through the bump zone with the progressive spring rate of an air spring at the end of the stroke to avoid bottom-outs. Truly, it’s the best of both worlds coil and air with extra tunability. Say goodbye to compromises and hello to the future of riding.

WHAT BUMP?: With 16.3% better bump force management than a traditional air-sprung shock, GENIE makes the Stumpjumper 15 Alloy ride like a bike with more travel. For example, the Stumpjumper 15 Alloy (with 145 mm rear wheel travel) and our Enduro (170 mm travel) both use 101 mm of travel to absorb a 1080 N bump force.

TRACTION GALORE: Extensive field testing proves that Stumpjumper 15 Alloy with GENIE delivers 57% better traction than a standard air-sprung shock because GENIE technology gives you supple, coil-like performance, which keeps the wheel in contact with the ground a greater percent of the time than a typical air spring would.

BYE, BYE, BOTTOM-OUTS: 39% fewer bottom-outs than a standard air spring. During big hit events, you benefit from the rising rate in the last 30% of the GENIE stroke. Because of this two-stage, pronounced rising rate, GENIE reduces the frequency and severity of bottom-outs.

HONED GEOMETRY: This bikes 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.

RIDE YOUR WAY: The 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, any terrain. The head angle and bottom bracket height can be fine-tuned for stability or clearance.

WHEEL CHOICE: 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.

CARRY IT ALL: SWAT on Stumpjumper 15 Alloy elevates downtube storage, an innovation we pioneered.

MORE RELENTLESS THAN YOU: 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 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
• Robust Specialized alloy wheels with sealed cartridge bearings
• Ride Dynamics tuned FOX FLOAT X Performance with Specialized GENIE patent-pending air spring technology provides maximum grip and traction found in a linear coil spring, bottom-out prevention found in a progressive air spring, and the ability to tune mid-stroke and end-stroke support independently. 2-position open and firm damper adjustments.
• Eat up the chunkiest trails with the FOX FLOAT 36 Rhythm fork with GRIP damper
• Performance-focused and durable Shimano SLX drivetrain
• Big stopping power from SRAM DB8 4-piston brakes
• Trustworthy time and time again X-Fusion Manic dropper post
• Lifetime replacement of suspension pivot bearings to the original owner

Specification

FramesetSeat BinderAlloy, 38.6mmFrameM5 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 travelSWATInternal SWAT Downtube StorageSuspensionForkFOX FLOAT 36 Rhythm, GRIP damper, two position Sweep adjustment, 15x110mm QR axle, 44mm offset S1:150mm of travel, S2-S6:160mm of travelRear ShockFOX FLOAT X Performance with Specialized GENIE Shock Tech, Ride Dynamics Trail Tune, 2-position lever, LSR adjustment, 210x55mmBrakesFront BrakeSRAM DB8 StealthRear BrakeSRAM DB8 StealthDrivetrainCassetteSRAM 1270 Transmission Cassette, 12 Spd,10-52tChainSRAM 70 Transmission ChainBottom BracketSRAM DUB Threaded WideShift LeversSRAM EAGLE 70Rear DerailleurSRAM Eagle 70 T-TypeCranksetSRAM Eagle 70, 55mm chainline, 32TWheels & tiresFront TireButcher, GRID TRAIL casing, Gripton T9 compound, 29X2.4SpokesDT Swiss ElementalRear TireEliminator, GRID TRAIL casing, GRIPTON T7 compound, TLR, S1-S2: 27.5×2.4, S3- S6: 29×2.4″Front HubSpecialized alloy front hub disc, sealed cartridge bearings, 6-bolt, 15x110mm thru-axle, 28hRear HubSpecialized alloy rear hub disc, sealed cartridge bearings, 6-Bolt, 12X148mm thru-axle, 28h, HD Steel FhbRimsSpecialized, hookless alloy, 30mm inner width, tubeless readyInner TubesStandard, Presta ValveCockpitStemAlloy Trail Stem, 35mm bar boreSaddleBridge Comp, Hollow Cr-mo rails S1-S2: 155mm, S3-S6:143mmGripsSpecialized Trail GripsHandlebarsSpecialized, 6000 series alloy, 6-degree upsweep, 8-degree backsweep. S1-S2: 780 width, 20mm rise: S3-S6: 800 width, 50mm riseSeatPostX-Fusion Manic, infinite adjustable, two-bolt head, bottom mount cable routing, remote SLR LE lever, 34.9, S1: 125mm, S2: 150mm, S3: 170mm, S4-S6: 190mmProduct detailsProduct ID221474WeightWeight16.55 kg (36 lb, 7.8 oz)Weight SizeS4

Geometry

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