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Specialized Stumpjumper ST Alloy 27.5

Specialized Stumpjumper ST Alloy 27.5
  • Color: Gloss Dusty Turquoise/White
  • Color: Satin Dusty Lilac/Black
  • Color: Satin Gloss Black/Black
  • Color: Satin Oak Green/Spruce/Hyper Green
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Our Stumpjumper ST models are snappy and nimble, yet incredibly versatile—the perfect rigs for riders seeking both efficiency and capability. The Stumpjumper ST Alloy 27.5 makes that winning combo affordable, with components that are big on performance and small on dollar signs.

The ultimate trail bike
The innovative sidearm frame design makes a lighter, better-handling bike. By directly connecting all three mounting points of the rear-end and shock to the frame, we've increased both stiffness and performance over bumps. End result? Total control.

Perfectly-balanced suspension
Our in-house suspension-tuning team develops custom shock tunes, perfectly paired to each bike's kinematics. We call this Rx Tune and while it's not the easy way to build a suspension bike, it's worth it. You feel Rx Tune as perfectly-balanced suspension.

Smart Parts Pick
- 27.5 wheels accentuate the Stumpjumper ST's playful on-trail feel.
- 130-millimeters of suspension courtesy of a RockShox Recon RL fork.
- SX Eagle 12-speed drivetrain gives you single-ring simplicity and gearing to spare.

Dropper posts

A dropper seatpost allows you to quickly lower and raise your seat to give you an ideal riding position. Dropping your seat creates a lower center of gravity for better control and maneuverability on steep descents, while raising it puts you at normal riding height for efficient pedaling.

Construction can include either hydraulic- or cable-actuated systems and the post’s travel can either be infinitely adjustable or stopped at set intervals, depending on the model.

Dropper seatposts come in standard lengths and diameters and vary by the amount of travel.


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, 130mm of travel
Fork RockShox Recon RL, Motion Control damper with low-speed compression to lockout, 46mm offset, rebound adjust, 15x110mm Boost Maxle Lite thru-axle, 130mm of travel
Rear Shock X-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, lockout 190x45mm
Axles Front: 15x110mm
Rear: 12x148mm
Rims/Wheels Double-wall alloy, 27mm internal width
Hubs Front: Specialized, sealed cartridge bearings, 15x110mm thru-axle, 32h
Rear: Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h
Spokes Stainless, 14g
Tires Front: Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.3"
Rear: Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.3"
Crankset SRAM SX Eagle, Powerspline, 170mm
Chainrings Steel, 32T
Bottom Bracket SRAM Powerspline
Chain SRAM SX Eagle, 12-speed
Rear Derailleur SRAM SX Eagle
Cassette/Rear Cogs SRAM PG-1210 Eagle, 11-50t
Shifters SRAM SX Eagle, trigger, 12-speed
Handlebars Specialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp
Tape/Grips Specialized Sip Grip, half-waffle, slip-on
Stem Specialized, 3D-forged alloy, 4-bolt, 7-degree rise
Brakes Front: Tektro Gemini Comp, hydraulic disc, resin pad, 200mm
Rear: Tektro Gemini Comp, hydraulic disc, resin pad, 180mm
Pedals Specialized Dirt
Saddle Body Geometry Myth:155 XS/S, Body Geometry Henge:143 M/L/XL, steel rails
Seat Post TransX dropper, 34.9mm, XS: 100mm, S: 125mm, ML/XL: 150mm Travel

* Subject to change without notice.

Part Numbers

Option UPC MPN
Gloss Dusty Turquoise/White / X-Small 888818551491 93220-7001
Gloss Dusty Turquoise/White / Small 888818552238 93220-7002
Gloss Dusty Turquoise/White / Medium 888818551200 93220-7003
Gloss Dusty Turquoise/White / Large 888818551262 93220-7004
Gloss Dusty Turquoise/White / X-Large 888818552566 93220-7005
Satin Dusty Lilac/Black / X-Small 888818553204 93220-7101
Satin Dusty Lilac/Black / Small 888818552269 93220-7102
Satin Dusty Lilac/Black / Medium 888818551705 93220-7103
Satin Dusty Lilac/Black / Large 888818552481 93220-7104
Satin Dusty Lilac/Black / X-Large 888818551330 93220-7105
Satin Gloss Black/Black / X-Small 888818552733 93220-7201
Satin Gloss Black/Black / Small 888818553112 93220-7202
Satin Gloss Black/Black / Medium 888818551811 93220-7203
Satin Gloss Black/Black / Large 888818551071 93220-7204
Satin Gloss Black/Black / X-Large 888818552306 93220-7205
Satin Oak Green/Spruce/Hyper Green / X-Small 888818551644 93220-7301
Satin Oak Green/Spruce/Hyper Green / Small 888818552412 93220-7302
Satin Oak Green/Spruce/Hyper Green / Medium 888818552788 93220-7303
Satin Oak Green/Spruce/Hyper Green / Large 888818551231 93220-7304
Satin Oak Green/Spruce/Hyper Green / X-Large 888818552450 93220-7305