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Stumpjumper ST Alloy 27.5

2020 Stumpjumper ST Alloy 27.5

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.

Technical Specifications

* Weights based on production painted frames as pictured. Actual weights will vary based on colourway, frame size, and component variation. Specifications are subject to change without notice.

Technical Specifications coming soon

Geometry

XSSMLXL
Crank Length170mm170mm170mm170mm170mm
Handlebar Width780mm780mm780mm780mm780mm
Stem Length50mm50mm50mm50mm50mm
Saddle Width155mm143mm143mm143mm143mm
Seatpost Length356mm406mm456mm456mm456mm
Stack581mm592mm596mm623mm637mm
Reach405mm415mm435mm455mm480mm
Head Tube Length100mm105mm110mm140mm155mm
Head Tube Angle66.5°65.5°65.5°65.5°65.5°
BB Height325mm336mm336mm336mm336mm
BB Drop28mm21mm21mm21mm21mm
Trail103mm112mm112mm112mm112mm
Fork Length, Full522mm542mm542mm542mm542mm
Fork Rake/Offset46mm46mm46mm46mm46mm
Front Centre696mm726mm748mm780mm812mm
Chainstay Length432mm432mm432mm432mm432mm
Wheelbase1127mm1157mm1179mm1212mm1243mm
Top Tube Length, Horizontal544mm570mm595mm627mm660mm
Bike Standover Height742mm752mm757mm769mm770mm
Seat Tube Length380mm380mm410mm455mm505mm
Seat Tube Angle76.5°75.3°75°74.6°74.2°
Geometry

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