Specialized Stumpjumper Evo Comp Alloy 650b Mountain Bike 2019 S2 – Satin Brushed/Black
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 3.0' tyre.
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.
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.
A FOX 36 Rhythm fork handles suspension duties up front with stiff stanchions and plenty of adjustability.
The SRAM Code R brakes with their four-piston calipers bring some of the best stopping power out there.
So when that hard right turn or mid-trail feature sneaks up sooner than you thought you'll still have time to scrub some speed.
Frame M5 alloy chassis and rear-end 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 Fork FOX FLOAT 36 Rhythm FIT4 damper 3-position adjustment Kashima Coat 15x110mm QR axle 37mm offset 150mm of travel Rear Shock FOX FLOAT DPX2 Performance Rx Trail Tune EVOL Air sleeve 3-position adjustment 210×52.5mm Front Hub Specialized sealed cartridge bearings 15x110mm spacing 28h Rear Hub Specialized sealed cartridge bearings 12x148mm thru-axle 28h Spokes DT Swiss Industry Rims Roval Traverse 27.5 hookless alloy 30mm inner width 2Bliss Ready 28h Inner Tubes Presta 40mm valve Front Tyre Butcher GRID casing GRIPTON® compound 2Bliss Ready 27.5 x 2.6' Rear Tyre Butcher GRID casing GRIPTON® compound 2Bliss Ready 27.5 x 2.6' Crankset SRAM NX Eagle DUB 170mm Chainrings 32T Bottom Bracket SRAM DUB threaded BB Shifters Sram NX Eagle trigger 12-speed Rear Derailleur SRAM NX Eagle 12-speed Cassette SRAM NX Eagle 12-speed 11-50t Chain SRAM NX Eagle 12-speed Front Brake SRAM Code R 4-piston caliper hydraulic disc 200mm Rear Brake SRAM Code R 4-piston caliper hydraulic disc 200mm Handlebars Specialized 6061 alloy 6-degree upsweep 8-degree backsweep 27mm rise 800mm width Grips Sensus Lite Stem Specialized Trail 3D-forged alloy 4-bolt 6-degree rise 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 Alloy 38.6mm