Stumpjumper Comp Alloy 27.5
$2,800.00
Part No.  

Stumpjumper Comp Alloy 27.5

$2,800.00
Part No.  153985
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Stumpjumper Comp Alloy 27.5
Overview
Technical Specifications
Geometry
Reviews

When you need to blend ruggedness, efficiency, and downright nimbleness into one trail bike, it's pretty damn hard to beat the confident construction of an alloy frame like the Stumpjumper Comp Alloy 27.5.

It features an M5 alloy construction that's lightweight, durable, and plenty stiff and compliant, while SRAM's most durable one-by components have been hand-selected to ensure that you get the most performance over rugged terrain possible. Furthering this, you'll also find a FOX FLOAT Rhythm fork with 150mm of travel up front, a custom-tuned RockShox Monarch RT3 at the rear, and powerful SRAM Guide R brakes.

And when you factor in our proprietary Rx Trail Tune at the shock, plus an aggressive, trail-eating geometry that features absurdly short chainstays, a roomy top tube, a low bottom bracket, and a slacked out front end, you get a nimble trail bike that you can be confident in, season after season.

  • M5 alloy Trail Chassis with Stumpjumper FSR rear end blends durability, stiffness, and light weight, while 150mm of travel Trail Geometry provide more than capable handling.
  • The FOX 34 fork features 150mm of plush travel to take on big hits and bumpy terrain with supreme confidence and efficiency.
  • SRAM's 11-speed GX drivetrain, with Race Face Aeffect crank, features a wide gear range that delivers climbing and descending efficiency in spades. On top of this, the one-by setup is notorious for being next to impossible to drop a chain with, plus it provides a significant weight savings in comparison to a standard two-by setup.

Technical Specifications

DRIVETRAIN
CHAIN KMC X11, 11-speed w/ Missing Link™
BOTTOM BRACKET Race Face PF30
CRANKSET Race Face Aeffect, PF30
SHIFT LEVERS SRAM GX, trigger, 11-speed
CASSETTE SRAM XG 1150, 11-speed, 10-42t
CHAINRINGS Steel, 30T
REAR DERAILLEUR SRAM GX, long cage, 11-speed
SUSPENSION
FORK FOX FLOAT Rhythm 34 27.5, 44mm offset, 2-position, tapered alloy steerer, 15x110mm Boost™, 150mm of travel
REAR SHOCK RockShox Monarch RT, Rx Trail Tune, AUTOSAG, rebound and 2-position compression adjust, 197x48mm
WHEELS
FRONT HUB Stout Pro 110 disc, alloy sealed cartridge bearings, 15x110mm spacing, 24h
REAR HUB Specialized, sealed cartridge bearings, 12x148mm thru-axle, 28h
INNER TUBES Standard, Presta valve
SPOKES DT Swiss Industry, stainless, 3-cross, 2.0"
RIMS Roval Traverse 27.5, hookless alloy, 29mm inner width, tubeless ready, 24/28h
FRONT TIRE Butcher, GRID casing, Gripton compound, 2Bliss Ready, 27.5 x 2.6"
REAR TIRE Butcher, GRID casing, Gripton compound, 2Bliss Ready, 27.5 x 2.6"
COCKPIT
SADDLE Body Geometry Henge Comp, hollow Cr-Mo rails, 143mm
SEATPOST Command Post IRcc, 12-position micro-height adjustable, alien head design, bottom mount cable routing, remote SRL lever, 30.9mm, S: 100mm, M/L/XL: 125mm of travel
STEM Specialized Trail, 3D forged alloy, 4-bolt, 6-degree rise
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
BRAKES
FRONT BRAKE SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200/180mm rotor
REAR BRAKE SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180/160mm rotor
ACCESSORIES
PEDALS Specialized Platform, Cr-Mo, 9/16" spindle
FRAMESET
SEAT BINDER Alloy, 34.9mm
FRAME Specialized M5 Aluminum, 27.5 Trail Geometry, PF30 BB, internal cable routing, ManFu link, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 150mm of travel

Geometry

Geometry Chart

Stumpjumper - Geometry

S M L XL
  S M L XL
Crank Length 170MM 170MM 170MM 170MM
Stem Length 45MM 60MM 60MM 60MM
Seatpost Length 390mm 430mm 430mm 430mm
Saddle Width 143mm 143mm 143mm 143mm
Handlebar Width 780mm 780mm 780mm 780mm
Reach 388mm 414mm 442mm 464mm
Top Tube Length, Horizontal 553mm 585mm 618mm 646mm
Stack 590mm 599mm 608mm 617mm
Wheelbase 1096mm 1126mm 1158mm 1184mm
Chainstay Length 420mm 420mm 420mm 420mm
Front Center 677mm 706mm 738mm 764mm
BB Drop 18mm 18mm 18mm 18mm
Seat Tube Angle 74° 74° 74° 74°
Head Tube Angle 67° 67° 67° 67°
Seat Tube Length 396mm 430mm 468mm 523mm
Head Tube Length 95mm 105mm 115mm 125mm
Bike Standover Height 742mm 748mm 762mm 774mm
Fork Rake/Offset 46mm 46mm 46mm 46mm
Fork Length, Full 542mm 542mm 542mm 542mm
Trail 104mm 104mm 104mm 104mm

Reviews