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2020 CUBE

REACTION TM

A 27.5″ aluminum frame hardtail trail bike with high-end components.
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Manufacturer Price

€1,071
Weight13.9 kg  
FrameAluminum
SuspensionHardtail, 130mm
ForkX-Fusion RC32
Wheels27.5″ Aluminum
Drivetrain1 × 12
GroupsetX1, SX Eagle
BrakesMagura MT Thirty Hydraulic Disc
SeatpostDropper
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
REACTION TM
Other Trail bikes
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)

36 km/h

REACTION TM

42 km/h

Similar Bikes

Highest gear

(descending)

Reviews

Summary

The CUBE Reaction trail bike series offers a mix of performance and value, with models praised for their acceleration, climbing efficiency, and component quality. However, some reviews note a harsh ride on descents, limited mud clearance, and tyres that struggle in wet conditions. The bike is often compared to the Specialized Epic Hardtail and Canyon Exceed CF SL 7.0 for its trail capabilities.

Pros
  • Instant acceleration

  • Impressive spec with well-chosen components

  • Great for sprinting up short, sharp climbs

  • Fox 34 fork is decently stiff with a supple GRIP damper

  • Cracking value for the price

Cons
  • Harsh ride on descents and rough trails

  • Tyres are thin and need higher pressures, adding to a jarring ride

  • Limited mud clearance

  • Tyres struggle in wet conditions

  • Long stem slows reactions on tight tracks

Key Quotes
Snappy out of the gate, the Reaction has a powerful kick
BikeRadar logoBikeRadar
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
off.road.cc logooff.road.cc
Cube has a reputation for well priced bikes – you get a decent amount of bike for your money.
Singletrack World logoSingletrack World

Feedback?

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BikeRadar
Cube Reaction C:62 SL review

Jul 2020 · Tom Marvin

Fast reactions to pedal inputs help on climbs, but the stiff chassis affects descending capability

Highs
  • Instant acceleration

  • Impressive spec, with well-chosen components across the board

Lows
  • Harsh ride chokes descending speed and rough-trail acceleration

  • Tyres are thin and need higher pressures to prevent punctures, adding to the uncompromising ride feel

Read Review

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,...

Read Review

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
Specs
Build
Frame

HPA, High Performance Aluminium

ColorGreen’n’black

Fork

X-Fusion RC32, 130mm

Travel130mm

Spring TypeAir

Headset

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

Stem

Newmen Evolution 318.4, 31.8mm

Handlebar

Newmen Evolution 318.20, 760mm

Saddle

Natural Fit Venec Lite

Seatpost

CUBE Dropper Post, Handlebar Lever, Internal Cable Routing, 30.9mm,16" 403x120mm, 18" & 20" 425x130mm, 22" 480x150mm

TypeDropper

Pedals

CUBE PP MTB

Grips

CUBE Race Grip 31mm, 1-Clamp

Groupset
Rear Derailleur

SRAM SX Eagle™, 11-50T, 1x12

Crank

SRAM X1 1000 Eagle™, 30T

Shifters

SRAM SX Eagle™ Trigger

Cassette

SRAM PG-1210 Eagle™, 11-50T

Chain

SRAM SX Eagle™

Brakes

Magura MT Thirty

TypeMagura MT Thirty Hydraulic Disc

Wheels
Rims

Rodi TRYP 35, 32H, Disc, Tubeless ready

Front Hub

Shimano HB-MT400-B, 15mm, Boost, Centerlock

Rear Hub

Shimano FH-MT400-B, 12mm, Boost, Centerlock

Tires

Kenda El Capo, 2.6

Rider Notes
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First added 3 September

Last updated 4 August

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