Stumpjumper Expert 29 - 2019
Stumpjumper Expert 29 - 2019
Specialized

Stumpjumper Expert 29 - 2019

Regular price $4,999.99 Sale price $4,499.95 Save $500.04

97518-3302


100 in stock

This is a special order item, available to ship within 5-10 business days.

This is a special order item, available to ship within 5-10 business days.

This is a special order item, available to ship within 5-10 business days.

This is a special order item, available to ship within 5-10 business days.

This item is available for FREE Home Delivery in the Greater Bay Area and Sacramento Region or it can be picked up at any Mike's Bikes.

Ever had a ride that felt more like an experience than just a ride? Us, too, and we've been chasing that feeling ever since. With the Stumpjumper Expert 29, we've bottled up that feeling and put into a radical new frame design that's so in-tune with the trail, the bike feels like an extension of your body. Seriously, it's going to make you rethink how a trail bike should ride.

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.

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. 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.

 

SPECS

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, 140mm of travel
FORK RockShox Pike RC, DebonAir, rebound/low-speed compression adjust, tapered steerer, 51mm offset, 15mm Maxle® Stealth thru-axle, 15x110mm Boost™, 150mm of travel
REAR SHOCK
RockShox Deluxe RT3, Rx Trail Tune, rebound & 3-position compression adjust, 210x50mm
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 Carbon 29, hookless carbon, 30mm inner width, hand-built, tubeless ready, 28h
INNER TUBES Standard, Presta valve
FRONT TIRE Butcher, GRID casing, GRIPTON® compound, 2Bliss Ready, 29x2.6"
REAR TIRE Purgatory, GRID casing, GRIPTON® compound, 2Bliss ready, 29 x2.6"
CRANKSET Truvativ Descendant, aluminum, Boost™ 148, 170mm crankarm, 24mm spindle
CHAINRINGS 30T
BOTTOM BRACKET SRAM GXP
SHIFT LEVERS SRAM GX Eagle, trigger, 12-speed
REAR DERAILLEUR SRAM GX Eagle, 12-speed
CASSETTE SRAM GX Eagle, 12-speed, 10-50t
CHAIN SRAM GX 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 Trail, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp
GRIPS Specialized Sip grip, half-waffle, S/M: regular thickness, L/XL: XL thickness
STEM Specialized Trail, forged alloy, 4-bolt, 5mm rise
SADDLE Body Geometry Phenom Comp, hollow Cr-Mo rails, 143mm
SEATPOST
Command Post IRcc, 16-position micro-height adjustable, two-bolt head, bottom mount cable routing, remote SRL lever, 34.9mm, S: 130mm, M/L/XL: 160mm of travel
SEAT BINDER Specialized bolt-type, alloy, 38.6mm