2018 CUBE

REACTION Race 27.5

A 27.5″ aluminum frame hardtail crosscountry bike with high-end components.
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Weight28.4 lbs  
FrameAluminum
SuspensionHardtail, 100mm
ForkRockShox Judy Silver TK
Wheels27.5″ Aluminum
Drivetrain1 × 12
GroupsetGX Eagle, Truvativ Stylo
BrakesHydraulic 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)

26 mph

REACTION Race 27.5

27 mph

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Highest gear

(descending)

Reviews
BikeRadar
Cube Reaction C:62 review

Mar 2019 · Guy Kesteven

Fork, bar and tyre issues, but stiff, lightweight future-proofed frame is a great investment

Highs
  • Lightweight, stiff and dropper-ready carbon frame

  • Comparatively stable steering

  • Quality Shimano 2x11 transmission

Lows
  • Basic, heavy fork

  • Heavy wheels and slippery tyres

  • Narrow bar and short frame reach

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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 TM review

Apr 2018

Cube's Reaction TM is a harder hitting version of their high-value aluminium Reaction hardtail range, pairing a sturdy 130mm fork up front with fat 2.6" tyres on 27.5" wheels. It's cracking value and much more capable in the rough than the rest of the range if you like hacking about in the woods, but there are harder edged weapons out there if you want to go full gonzo. Buying your first mountain bike - the complete guide to getting started First Look: 2018 Cube Stereo 140 HPC - all-new trail full suspension platform When should you replace your bicycle chain?

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Geometry
99 Spokes on YouTube99 Spokes on YouTube
Specs
Build
Frame

Aluminium Lite, AMF, ARG, Internal Cable Routing, Easy Mount Kickstand Ready, Tapered Headtube, PressFit BB

Fork

RockShox Judy Silver TK Air, Tapered, 15x110mm, 100mm, PopLoc

Travel100mm

Spring TypeAir

Headset

FSA Orbit I-t, Integrated, Top 1 1/8", Bottom 1 1/2"

Stem

CUBE Performance Stem Pro, 31.8mm

Handlebar

CUBE Flat Race Bar, 720mm

Saddle

CUBE Active 1.1

Seatpost

CUBE Performance Post, 27.2mm

TypeRigid

Pedals

CUBE Aluminium MTB

Grips

CUBE Performance Grip

Groupset
Rear Derailleur

SRAM GX Eagle, 12-Speed

Crank

SRAM Stylo Eagle, 32T, 175mm

Shifters

SRAM GX Eagle Trigger

Cassette

SRAM XG-1275, 10-50T

Chain

SRAM GX Eagle

Brakes

Shimano Deore BR-M6000, Hydr. Disc Brake (180/160)

TypeHydraulic Disc

Wheels
Rims

CUBE EX21, 32H, Disc, Tubeless Ready

Front Hub

CUBE Alloy Light

Rear Hub

CUBE Alloy Light

Tires

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

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Last updated April 14
Not listed for 2,260 days