Specialized Stumpjumper ST Alloy 2020

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2020 Specialized Stumpjumper ST Alloy

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 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

• 29er or 27.5 wheels roll over obstacles and maintain your momentum with ease.

• 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.

2020 Specialized Stumpjumper ST Alloy

Frame
M5 alloy chassis and rear end
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
Shock
X-Fusion 02 Pro RL, Rx Trail Tune
Headset
Specialized Integrated
Handlebar
Specialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp
Stem
Specialized, 3D-forged alloy, 4-bolt, 7-degree rise
Seatpost
TransX dropper, 34.9mm, S: 125mm, M/L/XL: 150mm Travel
Saddle
Body Geometry Myth 155 S, Body Geometry Henge 143 M/L/XL, steel rails
Brakes
Tektro Gemini Comp
Front Deraileur
-
Rear Derailleur
SRAM SX Eagle
Shifters
SRAM SX Eagle, trigger, 12-speed
Cassette
SRAM PG-1210 Eagle, 11-50t
Chain
SRAM SX Eagle, 12-speed
Crankset
SRAM SX Eagle, Powerspline, 170mm
Front Hub
Specialized, sealed cartridge bearings, 15x110mm thru-axle, 32h
Rear Hub
Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h
Spokes
Stainless
Rims
Double-wall alloy, 27mm internal width
Tyres
Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.3"

2020 Specialized Stumpjumper ST Alloy

Frame
M5 alloy chassis and rear end
Fork
RockShox Recon RL, Motion Control damper with low-speed compression to lockout, 51mm offset, rebound adjust, 15x110mm Boost™ Maxle® Lite thru-axle, 130mm of travel
Shock
X-Fusion 02 Pro RL, Rx Trail Tune
Headset
Specialized Integrated
Handlebar
Specialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp
Stem
Specialized, 3D-forged alloy, 4-bolt, 7-degree rise
Seatpost
TransX dropper, 34.9mm, S: 125mm, M/L/XL: 150mm Travel
Saddle
Body Geometry Myth 155 S, Body Geometry Henge 143 M/L/XL, steel rails
Brakes
Tektro Gemini Comp
Front Deraileur
-
Rear Derailleur
SRAM SX Eagle
Shifters
SRAM SX Eagle, trigger, 12-speed
Cassette
SRAM PG-1210 Eagle, 11-50t
Chain
SRAM SX Eagle, 12-speed
Crankset
SRAM SX Eagle, Powerspline, 170mm
Front Hub
Specialized, sealed cartridge bearings, 15x110mm thru-axle, 32h
Rear Hub
Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h
Spokes
Stainless
Rims
Double-wall alloy, 27mm internal width
Tyres
Eliminator, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 29x2.3" - Purgatory, GRID Casing, 2Bliss Ready, 29x2.3"
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BRINK is incredibly proud to bring you a handpicked selection of the very best Specialized has to offer. High end mountain bikes, and a select few other items that stand out for their exceptional quality or fantastic value for money. This is without doubt some of the finest mountain biking equipment in the world.

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