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Men's Stumpjumper EVO Comp Alloy 27.5

2019 Men's Stumpjumper EVO Comp Alloy 27.5

Let's get something clear—the Stumpjumper EVO Comp Alloy 27.5 isn't a "normal" trail bike. It's built to get gnarly, and there's no real way around that. It has a slacked-out front-end and a longer top tube, so the EVO has heavier steering, exceptional front-end traction, and it begs you to boost every lip and do cutties as often as possible. And with the flick-ability that 27.5-inch wheels are known for, you can add-in even more steeze.

What exactly is "EVO" for? EVO is for the shredders—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 that's featured on our Demo. This sizing lets you choose the bike that fits the way you ride—not just by the seat tube measurement like with most bikes—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.

Our other design goal was simple—build the ultimate trail bike, one that feels telepathic. And it turns out that this feeling all comes down to stiffness. Think of it this way: when the frame's telling your hands one thing and your feet another, your brain gets confused with the imbalance and the bike feels unstable. In order to fix this, we had to get to work on dialing-in the materials and shapes.

We continued down the suspension path with a custom Rx Trail Tune on both the fork and rear shock. Suspension performance is highly dependent on frame, wheel, and rider size, so we use our Rx Tune 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—we developed a specific Rx Tune for each platform. So, no matter what wheel size you prefer, you'll get perfectly linear suspension.

Steps were also taken to make this bike easy to live with. Threaded bottom brackets make a triumphant return, and we made room for up to a 2.8" tire. You're also free to run whatever aftermarket rear shock you want, since we're using standard metric shocks. And customization is furthered with a Flip Chip that lets you to 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.

The build here keeps the "EVO" theme going, with ready-to-shred parts like a FOX DPX2 rear shock (150mm of travel), FOX Rhythm 36 fork (150mm of travel), SRAM Code R brakes, and Roval Traverse 27.5 alloy wheels. And when you top it off with SRAM's NX Eagle drivetrain, you'll have no problem getting it to the top of the runs, either.

Technical Specifications

FRAMESET

FRAME

M5 alloy frame, asymmetrical design, 27.5 style-specific EVO Trail Geometry, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 150mm of travel

SUSPENSION

FORK

FOX FLOAT Rhythm 36, GRIP Damper, 44mm offset, 2-position sweep adjust, 15x110mm, tapered alloy steerer, 150mm of travel

REAR SHOCK

FOX FLOAT DPX2 Performance, Rx Trail Tune, EVOL Air sleeve, 3-position adjustment, 210x52.5mm

COCKPIT

HANDLEBARS

Specialized, 7050 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 800mm width

STEM

Specialized Trail, 3D-forged alloy, 4-bolt, 6-degree rise

GRIPS

Sensus, Lite

SADDLE

Body Geometry Phenom Comp, hollow Cr-Mo rails, 143mm

SEATPOST

X-Fusion Manic, infinite adjustable, two-bolt head, bottom mount cable routing, remote SRL LE lever, 34.9mm, 150mm of travel

SEAT BINDER

Specialized bolt-type, alloy, 38.6mm

BRAKES

FRONT BRAKE

SRAM Code R, 4-piston caliper, hydraulic disc, 200mm

REAR BRAKE

SRAM Code R, 4-piston caliper, hydraulic disc, 200mm

DRIVETRAIN

SHIFT LEVERS

SRAM NX Eagle, trigger, 12-speed

REAR DERAILLEUR

SRAM NX Eagle, 12-speed

CASSETTE

SRAM NX Eagle, 12-speed, 11-50t

CRANKSET

SRAM NX Eagle, DUB, 170mm

CHAINRINGS

32T

BOTTOM BRACKET

SRAM DUB, threaded BB

CHAIN

SRAM NX Eagle, 12-speed

WHEELS & TIRES

RIMS

Roval Traverse 27.5, hookless alloy, 30mm inner width, 2Bliss Ready, 28h

FRONT HUB

Specialized, sealed cartridge bearings, 15x110mm spacing, 28h

REAR HUB

Specialized, sealed cartridge bearings, 12x148mm thru-axle, 28h

SPOKES

DT Swiss Industry

FRONT TIRE

Butcher, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6"

REAR TIRE

Butcher, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6"

INNER TUBES

Presta, 40mm valve

ACCESSORIES

PEDALS

Specialized Dirt

* 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.

Geometry

S2S3
Crank Length170MM170MM
Handlebar Width800mm800mm
Stem Length45MM45MM
Saddle Width143mm143mm
Seatpost Length438mm438mm
Stack601mm610mm
Reach465mm490mm
Head Tube Length110mm120mm
Head Tube Angle63.5°63.5°
BB Height324mm324mm
BB Drop33mm33mm
Trail137mm137mm
Fork Length, Full542mm542mm
Fork Rake/Offset37mm37mm
Front Center790mm820mm
Chainstay Length440mm440mm
Wheelbase1228mm1258mm
Top Tube Length, Horizontal615mm647mm
Bike Standover Height743mm764mm
Seat Tube Length400mm450mm
Seat Tube Angle76°75.6°
Geometry

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