Technical Specifications

Description
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. 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. 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 SIZE: All coil-sprung models come with mixed wheels. 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 of suspension pivot bearings to the original owner is just one way we've got you covered. Lightweight FACT 11m carbon chassis and rear-end

Incredibly tough Roval Traverse wheels with DT Swiss 370 hub

Premium suspension support from an Öhlins TTX 22 M Coil, Ride Dynamics tuned

Plow through anything with a 160mm Öhlins RXF38 M.2 29 fork

Reliable and smooth shifting from SRAM GX Eagle AXS T-Type drivetrain

Powerful brakes with great hand feel thanks to TRP DH-R EVO 4-piston brakes

Adjustable travel PNW LOAM dropper post

Lifetime replacement of suspension pivot bearings to the original owner

Compatible with electronic drivetrains only

Frameset

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

SWAT SWAT 4.0 internal downtube storage

Suspension

Fork Öhlins RXF38 M.2 29, TTX Twin Tube Damping, external low speed rebound adjust, external high and low speed compression adjustment, 15x110mm, 44mm offset, 160mm of travel

Cockpit

Seat Post PNW Loam Dropper, tool-less travel adjust, Range lever, 34.9, S2: 150mm, S3: 170mm, S4-S6: 200mm

Saddle Bridge Comp, Hollow Cr-mo rails, S1-S2: 155mm, S3-S6: 143mm

Stem Deity, 35mm clamp, 35mm length

GripsDiety, Supracush, Black

Handlebars Deity, Racepoint, 5-degree upsweep, 9-degree backsweep, 810 width, S2: 25mm rise: S3-S6: 38mm rise

Brakes

Front Brake TRP DH-R EVO, 4-piston caliper, hydraulic disc, 220mm

Rear Brake TRP DH-R EVO, 4-piston caliper, hydraulic disc, 203mm

Drivetrain

Shift Levers SRAM AXS POD Controller

Rear Derailleur SRAM GX Eagle Transmission Derailleur

Cassette SRAM GX Eagle Transmission Cassette, 12spd, 10-52t

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

Chain SRAM GX Eagle Transmission Flattop Chain

Bottom Bracket SRAM DUB, BSA 73mm Wide, Threaded

Wheels & Tyres

Front Hub DT Swiss 370, 15x110mm, 28h

Rear hub DT Swiss 370, 12x148mm, 32h

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

Eliminator, GRID GRAVITY casing, GRIPTON® T9/T7 compound, 2Bliss Ready, 27.5x2.3" Eliminator, GRID GRAVITY casing, GRIPTON® T9/T7 compound, 2Bliss Ready, 27.5x2.3"

Spokes Sapim Force

Tubes Standard, Presta valve

Accessories

FAQs

Please read our FAQs page to find out more.

View All FAQs

What is included with a new bike purchase?

Every new bike purchase includes a basic setup so you are comfortable and ready to ride. We adjust your saddle height and make sure you can reach your brakes and shifters with ease.

What does Online Exclusive mean?

Online Exclusive items are not stocked on our showroom floor. They are ordered in from our supplier once you place your order and usually arrive within 7 days.

When will my bike be ready for pickup or delivery?

Once your bike arrives, our mechanics build and safety check it. We will notify you as soon as it is ready for pickup or prepared for home delivery.

Is the bike fully assembled?

Yes. All bikes are fully built, tuned and safety checked by our qualified mechanics before you receive them.

Do you offer delivery for bikes?

Yes. After your bike has been built and prepared, we can arrange home delivery. Courier fees vary depending on your location.

Can I book a bike fit?

Yes. We offer Retül Fit and Basic Fit services. Contact our showroom to book a session or visit this page to find out more about our fit services.