Stumpjumper EVO Alloy 27.5 - Frameset
$2,000.00
Part No.  

Stumpjumper EVO Alloy 27.5 - Frameset

$2,000.00
Part No.  
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Stumpjumper EVO Alloy 27.5 - Frameset
Overview
Technical Specifications
Geometry
Reviews

Let's get something clear—the Stumpjumper EVO 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 and exceptional front-end traction that begs you to do cutties and boost every lip. And with the perfect blend of responsiveness and stability that 27.5-inch wheels are known for, you'll be shredding the gnarliest lines in no time. When the goin' gets rowdy, the rowdy get goin'.

What exactly is the 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 3.0" 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.

  • With its M5 alloy frame, 27.5 Trail EVO geometry, and 150mm of travel, the Stumpjumper EVO Alloy has been purpose-built to shred the most gravity-defying trails.
  • FOX FLOAT DPX2 Performance has three modes—Open, Trail, and Firm—that control large compression adjustments on-the-fly.

Technical Specifications

SUSPENSION
REAR SHOCK FOX FLOAT DPX2 Performance, Rx Trail Tune, EVOL Air Sleeve, 3-position adjustment, 210x52.5mm
FRAMESET
SEAT BINDER Specialized bolt-type, alloy, 38.6mm
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

Geometry

Geometry Chart

Stumpjumper Evo - Geometry

S2 S3
  S2 S3
Reach 465mm 490mm
Top Tube Length, Horizontal 615mm 647mm
Stack 601mm 610mm
Wheelbase 1228mm 1258mm
Chainstay Length 440mm 440mm
Front Center 790mm 820mm
BB Drop 33mm 33mm
BB Height 324mm 324mm
Seat Tube Angle 76° 75.6°
Head Tube Angle 63.5° 63.5°
Seat Tube Length 400mm 450mm
Head Tube Length 110mm 120mm
Bike Standover Height 743mm 764mm
Fork Rake/Offset 37mm 37mm
Fork Length, Full 542mm 542mm
Trail 137mm 137mm

Reviews