Image of Specialized Men's Stumpjumper Comp Alloy 27.5
2018

Specialized Men's Stumpjumper Comp Alloy 27.5

Specialized Stumpjumper 2018

4000

Enduro Trail
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At a glance

The 2018 Specialized Men's Stumpjumper Comp Alloy 27.5 is a Enduro and Trail mountain bike. It sports 27.5" wheels, is priced at $4,000 AUD, has Fox suspension and a Shimano drivetrain. The bike is part of Specialized's Stumpjumper range of mountain bikes.

No need to fret—we haven’t forgotten about all you alloy fans out there. In fact, the new Stumpjumper Comp Alloy 27.5 may be the most radically designed alloy bike ever made. For real, though. And with new tube shapes, an asymmetrical design, and the nimble 27.5 handling that we all love, it’s plenty capable and ready to take on the trail. 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 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 is no-nonsense with a focus on dependable, high-performing parts, like a Shimano SLX drivetrain with RaceFace cranks, Shimano SLX disc brakes, FOX front and rear suspension, and Roval Traverse 27.5 alloy wheels.

Where To Buy

Reviews

Specifications

Frameset
  • Frame
    M5 alloy chassis and rear end, asymmetrical design, 27.5 Trail Geometry, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 150mm of travel
  • Fork
    FOX FLOAT Rhythm 34 27.5, 44mm offset, 2-position, tapered alloy steerer, 15x110mm Boost™, 150mm of travel
  • Shock
    FOX FLOAT DPS Performance, Rx Trail Tune, rebound and 3-position compression adjust, 210x52.5mm
Wheels
  • Hubs
    Front: Specialized, sealed cartridge bearings, 15x110mm spacing, 28h
    Rear: Specialized, sealed cartridge bearings, 12x148mm thru-axle, 28h
  • Wheels
    Roval Traverse 27.5, hookless alloy, 29mm inner width, tubeless ready, 28h
  • Wheel Size
    27.5"
  • Spokes
    DT Swiss Industry
  • Tires
    Front: Butcher, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6"
    Rear: Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6"
Drivetrain
  • Chain
    KMC X11, 11-speed w/ Missing Link™
  • Crank
    RaceFace Aeffect, 24mm spindle, 170mm crankarm
  • Bottom Bracket
    Threaded BB, 24mm spindle
  • Rear Derailleur
    Shimano XT, Shadow Plus, GS cage, 11-speed
  • Shifters
    Shimano SLX, 11-speed
  • Cassette
    Shimano SLX, 11-speed, 11-46t
  • Pedals
    Specialized Dirt
Components
  • Brakeset
    Front: Shimano SLX, hydraulic disc, resin pads, 200mm
    Rear: Shimano SLX, hydraulic disc, resin pads, 180mm
  • Handlebar
    Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm width
  • 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
  • Stem
    Specialized Trail, 3D-forged alloy, 4-bolt, 6-degree rise

FAQ

Q: How much is a 2018 Specialized Men's Stumpjumper Comp Alloy 27.5?

A 2018 Specialized Men's Stumpjumper Comp Alloy 27.5 is typically priced around $4,000 AUD when new. Be sure to shop around for the best price, and also look to the used market for a great deal.

Q: What size wheels does the 2018 Specialized Men's Stumpjumper Comp Alloy 27.5 have?

The 2018 Specialized Men's Stumpjumper Comp Alloy 27.5 has 27.5" wheels.

Q: What size 2018 Specialized Men's Stumpjumper Comp Alloy 27.5 should I get?

After measuring your height, use the size chart below to find the typical Specialized Men's Stumpjumper Comp Alloy 27.5 size for your height. Remember that these sizes are a general guide and bike sizes can vary between riders and bikes. The best way to find your size is to go for a test ride.

Rider Height (cm) Rider Height (in) Frame Size
148cm - 158cm 4'10" - 5'2" XS
158cm - 168cm 5'2" - 5'6" S
168cm - 178cm 5'6" - 5' 10" M
178cm - 185cm 5'10" - 6'1" L
185cm - 193cm 6'1" - 6'4" XL
193cm - 198cm 6'4" - 6'6" XXL

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