Specialized Stumpjumper 15 Expert
Specialized Stumpjumper 15 Expert

Specialized Stumpjumper 15 Expert

Regular price$8,500.00
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“The Stumpjumper 15 with GENIE gives me the benefits of a big travel bike and the benefits of a short travel bike in one.” ~ Allan Cooke

Stumpjumper 15 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.

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.

GENIE—The Magic Carpet Ride: The biggest innovation on the Stumpjumper 15 is GENIE. This patent-pending air spring technology that we invented grants every trail rider’s three wishes: the feel and control of a coil spring, better bottom-out prevention than a standard air spring, and a tunable “platform” for a playful feel.

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 Stumpy 15 ride like a bike with more travel. For example, the Stumpjumper 15 (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 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 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.

RIDE YOUR WAY: The Stumpjumper 15 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. 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 4.0 on Stumpjumper 15 elevates downtube storage, an innovation we pioneered. It’s the smoothest operating, most weather-resistant, flush-mounted system ever.

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 bearing replacement policy is just one way we've got you covered.

  • Lightweight FACT 11m carbon chassis and rear-end
  • Ride Dynamics tuned FOX FLOAT Performance Elite with Specialized GENIE Shock Tech. Highly adjustable 2-position open and firm mode with the 3-position open mode compression adjuster
  • Supportive and tuneable FOX FLOAT 36 Performance Elite fork with GRIP X2 damper
  • Strong and trusted Roval Traverse wheels, DT Swiss 370 hub
  • Smooth and precise SRAM GX Eagle T-Type AXS drivetrain
  • Powerful and reliable SRAM Maven Bronze 4-piston brakes
  • Adjustable travel with PNW LOAM dropper post
  • Lifetime bearing replacement
  • Compatible with electronic drivetrains only


  • SWAT: SWAT 4.0 internal downtube storage
  • Frame: FACT 11m carbon chassis and rear-end, Trail Geometry, SWAT™ Door integration, head tube angle adjustment, threaded BB, internal brake and dropper cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, SRAM UDH compatible, 145mm of travel
  • Seat Binder: Alloy, 38.6mm


  • Fork: FOX FLOAT 36 Performance Elite, GRIP X2 damper, HS and LS rebound and compression adjustment, 15x110mm QR axle, 44mm offset, S1:140mm of travel, S2-S6:150mm of travel
  • Rear Shock: FOX FLOAT Performance Elite with Specialized GENIE Shock Tech, Ride Dynamics Trail Tune, 2-position lever w/3 setting Open mode tuning range, LSR adjustment, S1:210x52.5mm, S2-S6:210x55mm


  • Stem: Alloy Trail Stem, 35mm bar bore
  • Saddle: Bridge Comp, Hollow Cr-mo rails, S1-S2: 155mm, S3-S6: 143mm
  • Grips: Deity Lockjaw
  • Handlebars: Specialized, 6000 series alloy, 6-degree upsweep, 8-degree backsweep
    • S1-S2: 780mm width, 20mm rise
    • S3-S4: 800mm width, 30mm rise
    • S5-S6: 800mm width, 40mm rise
  • SeatPost: PNW Loam Dropper, tool-less travel adjust, Range lever, 34.9
    • S1: 125mm
    • S2: 150mm
    • S3: 170mm
    • S4-S6: 200mm


  • Front Brake: SRAM Maven Bronze, 4-piston caliper, hydraulic disc, 200mm HS2 Rotor
  • Rear Brake: SRAM Maven Bronze, 4-piston caliper, hydraulic disc
    • S1-S2: 180mm
    • S3-S6: 200mm HS2 Rotor


  • Chain: SRAM GX Eagle Transmission Flattop Chain
  • Cassette: SRAM GX Eagle Transmission Cassette, 12spd, 10-52t
  • Bottom Bracket: SRAM DUB, BSA 73mm Wide, Threaded
  • Shift Levers: SRAM AXS POD Controller
  • Crankset: SRAM GX Eagle Crankset, 32T ring, Integrated Guard, 55mm Chainline
    • S1-S3: 165mm
    • S4-S6: 170mm
  • Rear Derailleur: SRAM GX Eagle Transmission Derailleur

Wheels & Tires

  • Rims: Roval Traverse, hookless alloy, 30mm inner width, tubeless ready
    • Front: 29
    • Rear: S1-S2: 27.5
    • S3-S6: 29
  • Front Hub: DT Swiss 370, 15x110mm, 28h
  • Rear Hub: DT Swiss 370, 12x148mm, 28h
  • Rear Tire: Eliminator, GRID TRAIL casing, GRIPTON® T7 compound, 2Bliss Ready
    • S1-S2: 27.5x2.3"
    • S3-S6: 29x2.3"
  • Spokes: Sapim Force
  • Inner Tubes: Standard, Presta valve
  • Front Tire: Butcher, GRID TRAIL casing, GRIPTON® T9 compound, 2Bliss Ready, 29x2.3"

Product Details

  • Product ID: 221401


  • Weight: 14.47kg (31 lb, 14.4 oz)
  • Weight Size: S4

Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are 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 125 150 170 200 200 200
Stack 608 618 627 640 654 667
Reach 400 425 450 475 500 530
Headtube Length 95 100 110 125 140 155
Headtube Angle 64.5 64.5 64.5 64.5 64.5 64.5
BB Height 334 337 337 337 337 337
BB Drop 41 38 38 38 38 38
Trail 129 130 130 130 130 130
Fork Length (full) 551 561 561 561 561 561
Fork Rake/Offset 44 44 44 44 44 44
Front Center 720 751 780 812 843 879
Chainstay Length 430 432 435 435 445 445
Wheelbase 1149 1181 1213 1244 1285 1322
Top-tube Length (horizontal) 541 573 595 624 647 677
Bike Standover Height 738 751 745 745 745 751
Seat Tube Length 385 385 405 425 445 465
Seat Tube Angle 78 77 77 76.5 76.5 76.5
Saddle Height for Effective ST Angle 645 690 735 780 825 870
Max Seatpost Insertion 245 245 255 255 285 285
Min Seatpost Insertion 80 80 80 80 80 80