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2017 CUBE

REACTION GTC

A 27.5″ carbon frame hardtail crosscountry bike with high-end components.
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Weight26.3 lbs  
FrameCarbon
SuspensionHardtail, 100mm
ForkManitou
Wheels27.5″ Aluminum
Drivetrain2 × 11
GroupsetXT, SLX
BrakesShimano Hydraulic Disc
Where to Buy
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

27 mph

REACTION GTC

27 mph

Similar Bikes

Highest gear

(descending)

Reviews
Singletrack World
Review: 2018 Cube Reaction TM - a ready to roll package

Dec 2018 · Hannah Dobson

Cube has a reputation for well priced bikes – you get a decent amount of bike for your money. It’s a brand you’ll find in many a local bike shop,...

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off.road.cc
Cube Reaction GTC One

Oct 2017

If you're after a seriously rapid and lightweight cross-country race bike then Cube's Reaction series of hardtails has always delivered, but the Reaction GTC One gets the added benefit of Shimano's clever Di2 electric shifting at a bargain price. The complete buyer's guide to mountain bikes - how get the best bike for you Review: Ritchey P-29 - a steel, short-travel hardtail with heritage Prefer drop bars?

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BikeRadar
Cube Reaction GTC SL review

Sep 2016 · Guy Kesteven

A great-value example of exactly how fast and much fun an XC hardtail should be. Buy if you're looking for a fast, fun cross country ride

Highs
  • Excellent balance of efficiency and speed sustain over rough terrain

  • Smooth, remote control Fox fork and full Shimano XT spec

Lows
  • Slightly heavy frame, fragile tyres and temperamental XT brakes

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Dirt Mountainbike
Cube Reaction GTC SL 29 First Look

Jun 2014 · Dirt HQ

The Cube Reaction GTC SL 29 is ready to hit the trail for some fast trail action or race, whether a short cross-country affair or something longer...

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Geometry
Specs
Build
Frame

GTC Twin Mold Monocoque Technology, ARG2, Tapered Headtube, PressFit BB, X12, Integrated Cable Routing

Fork

Manitou M30 Air, Remote Lockout, 100mm

Travel100mm

Spring TypeAir

Headset

FSA Orbit I-t-R, Integrated, Top 1 1/8", Bottom 1 1/8"

Stem

CUBE Performance Stem Pro, 31.8mm

Handlebar

CUBE Flat Race Bar 720mm 8°

Saddle

Cube Active 1.1

Seatpost

CUBE Performance Post, 27.2mm

TypeRigid

Grips

CUBE Performance Grip

Groupset
Rear Derailleur

Shimano XT RD-M8000-DSGS, ShadowPlus, 11-Speed, Direct Mount

Front Derailleur

Shimano XT FD-M8020-D, Direct Mount, Side Swing

Crank

Race Face Ćffect SL 36x26T, 175mm

Shifters

Shimano SLX SL-M7000

Cassette

Shimano SLX CS-M7000, 11-42T

Chain

KMC X11

Brakes

Shimano BR-M315, Hydr. Disc Brake (180/160)

TypeShimano Hydraulic Disc

Wheels
Rims

CUBE EX21, 32H, Disc, Tubeless ready

Front Hub

Shimano Deore HB-M615, Centerlock

Rear Hub

Shimano Deore FH-M618, Centerlock, 142x12mm

Tires

Front: Schwalbe Tough Tom, Active, 2.25, Rear: Schwalbe Rapid Rob, Active, 2.25

Rider Notes
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First added April 14

Last updated April 14

Not listed for 2,970 days