Specialized Stumpjumper St Comp Carbon 29er 12 Speed Mountain Bike 2019 – Gloss Blue Tint Carbon/White

£3,599.99

With the same 11m carbon construction as the S-Works the Stumpjumper ST Comp Carbon 29 with 12-speed SRAM NX Eagle brings you transcendent handling custom-tuned suspension and an elimination of proprietary headaches—all while keeping the speed you look for with 29-inch wheels.

And don't forget that with its 'ST' distinction this Stumpjumper gets slightly steeper angles and less suspension 130mm front/120mm rear so you get more nimble and responsive climbing ability and sublime descending prowess.

  Our design goal for the new Stumpjumper 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 shapes and the layout.

  We started by creating our own mountain-specific stiffness test and then we looked at the layout with Finite Element Analysis FEA to see where we could get the biggest stiffness improvements.

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.

We were able to create a frame design that was 20% more efficient.

And in the end this proved to be one of the lightest trail frames on the market today.

  When designing the frame with the stiffness targets being a main goal we developed a radical new sidearm design.

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 grams out of the rear-end.

More explicitly this minimizes frame flex when the rear suspension is active.

  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-inch tyre.

You're also free to run whatever aftermarket rear shock you want since we're using standard metric shocks.

We revamped the SWAT™ box too making it sleeker lighter and with more volume.

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.

Lastly we seriously 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 build on this Comp model comes with a list of components that deliver undeniable quality like a like a 12-speed SRAM NX Eagle drivetrain SRAM Guide R disc brakes a FOX FLOAT Rhythm 34 for with 130mm of travel a FOX FLOAT DPS rear shock with 120mm of travel and Roval Traverse 29 wheels.

  The Stumpjumper ST's asymmetrical FACT 11m carbon fibre construction is lightweight stiff and ready for technical climbs and rowdy descents.

It's built off of our 29 Trail Geometry so it's both capable and comfortable.

And with SWAT™ integration in the down tube a threaded BB easy cable routing and a brand new chain silencer it's ready for anything the trail or you throw at it.

  The FOX DPS Performance rear shock features our Rx Trail Tune ensuring that no matter the frame or wheel size your bike is dialed-in perfectly.

  SRAM's 12-speed NX Eagle groupset features a wide gear range that delivers climbing and descending efficiency in spades.

    Frame FACT 11m full carbon chassis and rear end asymmetrical design 29 Trail Geometry SWAT™ Door integration threaded BB fully enclosed internal cable routing 12x148mm dropouts sealed cartridge bearing pivots replaceable derailleur hanger 120mm of travel Fork FOX FLOAT Rhythm 34 GRIP Damper 51mm offset 2-position sweep adjust 15x110mm tapered alloy steerer 130mm of travel Rear Shock FOX FLOAT DPS Performance Rx Trail Tune rebound and 3-position compression adjust 190×42.5mm 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 29 hookless alloy 30mm inner width tubeless ready Inner Tubes Standard Presta valve Front Tyre Butcher GRID Casing GRIPTON® compound 2Bliss Ready 29×2.3' Rear Tyre Purgatory GRID casing GRIPTON® compound 2Bliss Ready 29×2.3' Crankset SRAM NX Eagle DUB 170mm Chainrings Steel 30T 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 Guide R hydraulic disc organic pads Guide S4 4-piston caliper 200mm Rear Brake SRAM Guide R hydraulic disc organic pads Guide S4 4-piston caliper 180mm Handlebars Specialized 6061 alloy 6-degree upsweep 8-degree backsweep 27mm rise 780mm width Grips Specialized Sip Grip half-waffle S/M: regular thickness L/XL: XL thickness Stem Specialized Trail 3D-forged alloy 4-bolt 6-degree rise Saddle Body Geometry Phenom Comp Adaptive Edge design hollow Cr-Mo rails 143mm Seatpost X-Fusion Manic infinite adjustable two-bolt head bottom mount cable routing remote SRL LE lever 34.9mm S: 125mm M/L/XL: 150mm of travel Seat Binder Alloy 38.6mm  

Additional information

Brand

Close Menu