As this is not a brand new bike, it may not feature the full original technical specification and is subject to change.
Break tradition with a trail bike built for gravity riding.
The Stumpjumper Evo Pro 29 is the perfect shred sled - a "trail bike" you can take down DH trails, huck off blind drops, or plow through the rowdiest of rock gardens.
EVO is designed for shredders and the gnarliest trail riders who live for gravity riding. Big drops, huge kickers, rocks, roots - whatever you throw at it, the Stumpjumper EVO can handle it. EVO uses the same style-specific sizing featured on the Specialized Demo. This sizing lets you choose the bike that fits the way you ride, not just by the seat tube measurement, and it narrows things down to two sizes, S2 and S3. These are longer, lower, slacker, and have seat tube and head tube heights that allow you to choose the size that best suits your style and terrain.
To create the Stumpjumper Evo Pro, Specialized created their own mountain-specific stiffness test then looked at the layout with Finite Element Analysis (FEA) to see where the biggest stiffness improvements could be made. This led to a big discovery: The Large and X-Large frames needed more front-end stiffness while the Smalls and Mediums were just fine. A frame design was created that was 20% more efficient and proved to be one of the lightest trail frames on the bicycle market, today.
When designing the frame with the stiffness targets being a main goal, a radical new sidearm design was developed. The front-end and rear-end are connected at three points, and the sidearm helps keep all these points super stiff and connected, all while taking about 100 grammes out of the rear-end. More explicitly, this minimises frame flex when the rear suspension is active.
Specialized continued down the suspension path with a custom Rx Trail Tune at the rear shock. Suspension performance is highly dependent on frame, wheel, and rider size, so Rx Tune is used to get each bike to land in the middle of the adjustment spectrum, and this gives you the biggest possible range to fine-tune your ride. Another focal point of the tune was matching the suspension characteristics between wheel sizes - a specific Rx Tune was developed for each platform. This way, you'll get perfectly linear suspension.
Threaded bottom brackets make a triumphant return, and room was made for up to a 3.0" tyre. You're also free to run whatever aftermarket rear shock you want, since they're using standard metric shocks. The SWAT™ box was also revamped, making it sleeker, lighter, and with more volume. Customisation is furthered with a Flip Chip that lets you dial-in your Stumpy to your riding style. Switch it from High to Low and it drops your bottom bracket 6mm and slackens the head tube by half-a-degree.
Little details also jump out to surprise you, like a newly designed ribbed chainstay protector that makes chain slap a thing of the past and nearly silences the drivetrain. Lastly, Specialized couldn't make cable routing any easier on carbon models. Full tubes can be found throughout the carbon frame, so all you have to do is push the cable and it'll come out the other end. No more lazy loop, hidden stashes of magnets, pokey spokes, or pillows to cry in.
The "get gnarly" motto was kept going with the build kit of the Stumpjumper EVO Pro, spec'ing it with Fox front and rear suspension, robust Roval Traverse Carbon wheels, and a 12-speed SRAM GX Eagle groupset.
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With its FACT 11m full carbon frame, 29 Trail EVO geometry, and 140mm of travel, the Stumpjumper EVO has been purpose-built to shred the most gravity-defying trails.
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The FOX FLOAT DHX2 Performance Elite rear shock keeps our coveted Rx Trail Tune, while giving you the coil-shock big-hit performance that you know and love.
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A FOX 36 Perfomance Elite fork handles suspension duties up front, with stiff stanchions and plenty of adjustability.