Stumpjumper Comp Alloy 27.5

2020 Stumpjumper Comp Alloy 27.5

The Stumpjumper Comp Alloy 27.5 combines the balanced stiffness and incredible precision of our sidearm frame design with a 12-speed SRAM NX Eagle drivetrain. The end result is a bike that outperforms its price tag by a wide margin.

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.

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. Total control.

MASSIVE BANG FOR YOUR BUCK

• Sidearm frame design offers balanced stiffness and precise handling.

• FOX DPS Performance rear shock delivers perfectly-dialed rear suspension.

• NX Eagle 12-speed drivetrain gives you single-ring simplicity and gearing to spare.

Technical 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

SEAT BINDER

Specialized bolt-type, alloy, 38.6mm

SUSPENSION

REAR SHOCK

FOX FLOAT DPS Performance, Rx Trail Tune, rebound and 3-position compression adjust, 210x52.5mm

FORK

FOX FLOAT RHYTHM, 34, GRIP damper, 44mm offset, 2-position sweep adjust, 15x110mm, tapered alloy steerer, 150mm of travel

COCKPIT

STEM

Specialized Trail, 3D-forged alloy, 4-bolt, 6-degree rise

HANDLEBARS

Specialized Trail, 6061 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 31.8mm clamp, XS 720mm, S-XL 750mm,

GRIPS

Specialized Sip grip, half-waffle, S/M: regular thickness, L/XL: XL thickness

SADDLE

Body Geometry Phenom Comp, 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: 150mm, XL: 170mm

BRAKES

FRONT BRAKE

SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200mm

REAR BRAKE

SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180mm

DRIVETRAIN

REAR DERAILLEUR

SRAM NX Eagle, 12-speed

SHIFT LEVERS

SRAM NX Eagle, trigger, 12-speed

CASSETTE

SRAM NX Eagle, 12-speed, 11-50t

CHAIN

SRAM NX Eagle, 12-speed

CRANKSET

SRAM NX Eagle, DUB, 170mm

CHAINRINGS

Steel, 30T

BOTTOM BRACKET

SRAM DUB, BSA 73mm, Threaded

WHEELS

RIMS

Roval Traverse 27.5, hookless alloy, 30mm inner width, tubeless ready

FRONT HUB

Specialized, sealed cartridge bearings, 15x110mm spacing, 28h

REAR HUB

Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h

SPOKES

DT Swiss Industry

FRONT TIRE

Butcher, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6"

REAR TIRE

Eliminator, GRID TRAIL casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6"

INNER TUBES

Presta, 40mm valve

* 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.

Geometry

	S	M	L	XL
Crank Length	170	170	170	170
Handlebar Width	780mm	780mm	780mm	780mm
Stem Length	45	45	45	45
Saddle Width	143mm	143mm	143mm	143mm
Seatpost Length	375	438	438	438
Stack	581mm	592mm	596mm	623mm	637mm
Reach	405mm	415mm	435mm	455mm	480mm
Head Tube Length	100mm	105mm	110mm	140mm	155mm
Head Tube Angle	66.5°	65.5°	65.5°	65.5°	65.5°
BB Height	325mm	336mm	336mm	336mm	336mm
BB Drop	28mm	21mm	21mm	21mm	21mm
Trail	103mm	112mm	112mm	112mm	112mm
Fork Length, Full	522mm	542mm	542mm	542mm	542mm
Fork Rake/Offset	46mm	46mm	46mm	46mm	46mm
Front Center	696mm	726mm	748mm	780mm	812mm
Chainstay Length	432mm	432mm	432mm	432mm	432mm
Wheelbase	1127mm	1157mm	1179mm	1212mm	1243mm
Top Tube Length, Horizontal	544mm	570mm	595mm	627mm	660mm
Bike Standover Height	742mm	752mm	757mm	769mm	770mm
Seat Tube Length	380mm	380mm	410mm	455mm	505mm
Seat Tube Angle	76.5°	75.3°	75°	74.6°	74.2°

Manual Downloads

Roval Road and Mountain Wheelsets

Dodatek - POUŽITÍ TRENAŽÉRU

Specialized Bicycle Owner's Manual (All Languages)

Stumpjumper Sidearm Pivot Parts Schematic

Stumpjumper Sidearm Small Parts Schematic

Stumpjumper FSR User Manual

Specialized Bicycle Owner's Manual Addendum: Riding With Kids

Tire Pressure and Handlebar Grips Addendum

Trainer Usage Addendum to the Bicycle Owner's Manual

Rider Reviews

4.5
4 Reviews

02/24/2021

Brilliant Bike

Great in corners, amazing on jumps and flow lines and handles tech very well. The best bike.

Name:: Toby

Helpful?

04/12/2020

Awesome bike, but...

Bought this bike when it came out. Went from a Ripley LS to the Stumpy Comp 27.5. Handling is great, but the bottom bracket is just too low for where I ride. I've already destroyed one pair of pedals and just yesterday had an out of nowhere pedal strike that resulted in a serious crash. I'm in the normal position on flip chip and 25% sag. I've been riding for a long time and consider myself competent (former Cat1 DH racer). But pedal strikes are the summary of my relationship with this bike. Roots, rocks, strikes. Over it. Otherwise it's a great bike, handles well and a simple pad upgrade on the guide brakes made them work really well without having to spend a ton on new ones. Eagle NX is ok, 12-speed is great. Overall I'm happy with the value of the bike... it's solid.

Name:: Relegate

Helpful?

03/30/2020

Great bike, terrible brakes

This bike is well built and Is extremely Fun to ride. The only weakness is the brakes. I just bought a Specialized Stumpjumper aluminum comp that came with Guide R brakes. I gave them a good shot, but I opted to pay almost $500.00 to upgrade the brakes on my brand new Stumpjumper. That's how bad the SRAM brakes were compared to Shimano. I replaced them with the Shimano Diore XT brakes and I couldn't be happier. Everyone in the bike industry says the same thing... the SRAM brakes are soft and the Shimano brakes stop on a dime. Do yourself a favor and stay away from the Guide R brakes! I hope Specialized considers Shimano brakes next year.

Name:: Deputydog2003

Helpful?

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