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S-Works Stumpjumper 15 LTD

FOX DHX Live Valve Neo

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The S-Works Stumpjumper 15 LTD trail bike is here to obliterate every trade-off in…

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FOX Live Valve Neo

FOX Live Valve Neo

Live Valve Neo is a lightning-fast wireless rear suspension technology that automatically switches between fully active and firm with staggering speed. FOX Neo is the fastest wireless communication protocol in the bike industry - 100X faster than Bluetooth. Simple to use and infinitely tunable through the FOX Bike app. Live Valve Neo provides the best possible combination of XC pedaling efficiency and big bike descending capability—faster than the blink of an eye.

Stumpjumper 15 - All You Need to Know

Product Details

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The S-Works Stumpjumper 15 LTD trail bike is here to obliterate every trade-off in the trail game. Devour bumps like a big bike? Check. Short-travel control and optimal pedaling efficiency? Double check. Swapping between those two scenarios automatically without ever flipping a switch? Check, check, check. Meet the all-new S-Works Stumpjumper LTD with FOX Live Valve Neo.

KINEMATICS PERFECTED — As the quintessential trail bike, Stumpjumper 15 balances efficiency and optimal bump force management. For the anti-squat on Stumpjumper 15, we struck a balance between the previous Stumpjumper and Stumpjumper EVO, as both had excellent pedaling characteristics.

IT’S [A]LIVE — No, we haven’t finally created a sentient bike… It’s FOX’s brand new Live Valve Neo system equipped on S-Works Stumpjumper 15 LTD. A lightning-fast wireless rear suspension system that provides infinite tuning options through the FOX Bike app, and the best possible combination of XC pedaling efficiency and enduro descending capability—faster than the blink of an eye.

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 can be fine-tuned for stability or clearance.

FORM FOLLOWS FUN — We can make a frame as stiff as we want, but there’s such a thing as too stiff. To be one with the bike requires engineered compliance in the frame. We engineered the FACT 11M carbon—front end, rear end, and the link between them—as a single unit that hits the stiffness target we established for trail riding.

WHEEL CHOICE — With our aftermarket link 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 replacement suspension pivot bearings to the original owner (one bearing set, per bike, per year) is just one way we've got you covered. See your local Specialized Retailer for details.

  • Lightweight FACT 11m carbon chassis, rear-end, and link

  • Total confidence from super tough Roval Traverse HD wheels, DT Swiss 240 hub

  • Tuneable and supportive Ride Dynamics Tuned FOX DHX Live Valve NEO Factory shock

  • Planted and tuneable FOX FLOAT 36 Factory fork with GRIP X2 damper

  • Superior shifting experience from SRAM XX Eagle T-Type AXS drivetrain

  • Top-tier braking power from SRAM Maven Ultimate 4-piston brakes

  • Incredibly smooth and reliable FOX Transfer NEO Factory dropper post

  • Lifetime replacement suspension pivot bearings to the original owner

  • Compatible with electronic drivetrains only

Technical Specifications

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Frameset

Frame

FACT 11m carbon chassis, rear-end, and link, 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

SWAT

SWAT 4.0 internal downtube storage

Suspension

Rear Shock

FOX DHX Live Valve NEO Factory, Ride Dynamics Trail Tune, 210x55mm, S2: 400lbs, S3: 450lbs, S4: 500bs, S5: 550lbs, S6: 600lbs

Fork

FOX FLOAT 36 Factory, GRIP X2 damper, HS and LS rebound and compression adjustment, 15x110mm QR axle, 44mm offset, 150mm of travel

Brakes

Front Brake

SRAM Maven Ultimate, 4-piston caliper, hydraulic disc, 200mm HS2 Rotor

Rear Brake

SRAM Maven Ultimate, 4-piston caliper, hydraulic disc, S2: 180mm, S3-S6: 200mm HS2 Rotor

Drivetrain

Shift Levers

SRAM AXS POD Ultimate Controller

Rear Derailleur

SRAM XX Eagle Transmission Derailleur

Cassette

SRAM XX Eagle SL Transmission Cassette, 12spd, 10-52t

Chain

SRAM XX Eagle SL Transmission Flattop Chain

Crankset

SRAM XX Eagle Crankset, 32T ring, 55mm Chainline, S2-S3:165mm, S4-S6: 170mm

Bottom Bracket

SRAM DUB, BSA 73mm Wide, Threaded

Wheels & Tires

Rims

Roval Traverse HD, hookless carbon, 30mm inner width, tubeless ready, Front: 29, Rear: S2: 27.5, S3- S6: 29

Front Hub

DT Swiss 240, 15x110mm, 28h

Rear Hub

DT Swiss 240, 12x148mm, 32h

Spokes

DT Swiss Revolite

Front Tire

Butcher, GRID TRAIL casing, GRIPTON® T9 compound, 2Bliss Ready, 29x2.3"

Rear Tire

Eliminator, GRID GRAVITY casing, GRIPTON® T7/T9 compound, 2Bliss Ready, S2: 27.5x2.3, S3- S6: 29x2.3"

Inner Tubes

Standard, Presta valve

Cockpit

Stem

Industry 9 Moutain stem, 35mm clamp, 40mm length

Handlebars

Race Face ERA Carbon, 5-degree upsweep, 8-degree backsweep,S2: 780mm, 20mm rise: S3-S6: 800mm, 40mm rise

Grips

Deity Lockjaw

Saddle

Power Pro with Mirror, Hollow Ti rails, S2: 155mm, S3-S6: 143mm

SeatPost

FOX Transfer NEO Factory, 34.9, S2: 150mm, S3: 175mm, S4-S6: 200mm

Product Details

Product ID

278252

Weight

Weight

14.48 kg (31 lb, 14.8 oz)

Weight Size

S4

* Weights based on production painted frames as pictured. Actual weights will vary based on colourway, frame size, and component variation. Specifications are subject to change without notice.

Geometry

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S2S3S4S5S6
Crank Length165mm165mm170mm170mm170mm
Handlebar Width800mm800mm800mm800mm800mm
Stem Length40mm40mm40mm40mm40mm
Saddle Width155mm143mm143mm143mm143mm
Seatpost Length150mm175mm200mm200mm200mm
Stack618mm627mm640mm654mm667mm
Reach425mm450mm475mm500mm530mm
Headtube Length100mm110mm125mm140mm155mm
Headtube Angle64.5°64.5°64.5°64.5°64.5°
BB Height337mm337mm337mm337mm337mm
BB Drop38mm38mm38mm38mm38mm
Trail130mm130mm130mm130mm130mm
Fork Length (full)561mm561mm561mm561mm561mm
Fork Rake/Offset44mm44mm44mm44mm44mm
Front Centre751mm780mm812mm843mm879mm
Chainstay Length432mm435mm435mm445mm445mm
Wheelbase1181mm1213mm1244mm1285mm1322mm
Top-tube Length (horizontal)573mm595mm624mm647mm677mm
Bike Standover Height751mm745mm745mm745mm751mm
Seat Tube Length385mm405mm425mm445mm465mm
Seat Tube Angle77°77°76.5°76.5°76.5°
Saddle Height for Effective ST Angle690mm735mm780mm825mm870mm
Max Seatpost Insertion245mm255mm255mm285mm285mm
Min Seatpost Insertion80mm80mm80mm80mm80mm
Geometry

Manual Downloads

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2025 STUMPJUMPER CARBON - USER MANUAL - ENGLISH
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2025 STUMPJUMPER CARBON - USER MANUAL - CHINESE SIMPLIFIED
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2025 STUMPJUMPER CARBON - USER MANUAL - CHINESE TRADITIONAL
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2025 STUMPJUMPER CARBON - USER MANUAL - CROATIAN
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2025 STUMPJUMPER CARBON - USER MANUAL - CZECH
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2025 STUMPJUMPER CARBON - USER MANUAL - DANISH
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2025 STUMPJUMPER CARBON - USER MANUAL - DUTCH
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2025 STUMPJUMPER CARBON - USER MANUAL - FINNISH
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2025 STUMPJUMPER CARBON - USER MANUAL - FRENCH
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2025 STUMPJUMPER CARBON - USER MANUAL - GERMAN
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2025 STUMPJUMPER CARBON - USER MANUAL - HUNGARIAN
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2025 STUMPJUMPER CARBON - USER MANUAL - ITALIAN
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2025 STUMPJUMPER CARBON - USER MANUAL - JAPANESE
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2025 STUMPJUMPER CARBON - USER MANUAL - KOREAN
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2025 STUMPJUMPER CARBON - USER MANUAL - NORWEGIAN
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2025 STUMPJUMPER CARBON - USER MANUAL - POLISH
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2025 STUMPJUMPER CARBON - USER MANUAL - PORTUGUESE
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2025 STUMPJUMPER CARBON - USER MANUAL - SLOVAK
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2025 STUMPJUMPER CARBON - USER MANUAL - SLOVENIAN
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2025 STUMPJUMPER CARBON - USER MANUAL - SPANISH
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2025 STUMPJUMPER CARBON - USER MANUAL - SWEDISH
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2022 ROVAL ROAD AND MOUNTAIN WHEELSETS - OWNER'S MANUAL - CHINESE SIMPLIFIED
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2022 ROVAL ROAD AND MOUNTAIN WHEELSETS - OWNER'S MANUAL - ENGLISH
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2022 ROVAL ROAD AND MOUNTAIN WHEELSETS - OWNER'S MANUAL - FRENCH
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2022 ROVAL ROAD AND MOUNTAIN WHEELSETS - OWNER'S MANUAL - GERMAN
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2022 ROVAL ROAD AND MOUNTAIN WHEELSETS - OWNER'S MANUAL - PORTUGUESE BRAZILIAN
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2022 ROVAL ROAD AND MOUNTAIN WHEELSETS - OWNER'S MANUAL - SPANISH
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SWAT CC User Manual

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