2018 CUBE

REACTION Pro 27.5

A 27.5″ aluminum frame hardtail crosscountry bike with upper mid-range components.
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Weight29.3 lbs  
FrameAluminum
SuspensionHardtail, 100mm
ForkRockShox Recon Silver TK
Wheels27.5″ Aluminum
Drivetrain2 × 11
GroupsetXT, SLX
BrakesHydraulic Disc
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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 Pro 27.5

27 mph

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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 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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BikeRadar
Cube Reaction GTC Pro review

Aug 2016 · Guy Kesteven

A great value bike with better than expected spec, but you might want to upgrade the tyres. Buy if you're a racer or trail warrior looking for a responsive and smooth carbon ride at a great price

Highs
  • Efficiently driven, smooth riding, full feature full carbon frame at an alloy version price. Outstanding value Shimano XT transmission spec with decent wheels and fork

Lows
  • The cheap Active Line tyres are fast and hard-wearing, but lack grip and supple smoothness in wet conditions

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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

BB StandardBSA, 73mm, Threaded

Fork

Rock Shox Recon Silver TK AIR, PopLoc, 100mm

Travel100mm

Spring TypeAir

Bottom Bracket

BSA, 73mm, threaded

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

Saddle

Selle Royal MTB

Seatpost

CUBE Performance Post, 27.2mm

TypeRigid

Pedals

CUBE Aluminium MTB

Grips

CUBE Performance Grip

Groupset
Rear Derailleur

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

Front Derailleur

Shimano SLX FD-M7020-D, Direct Mount, Side Swing

Crank

Shimano XT FC-M8000-B2, Boost, 36x26T, 175mm

Shifters

Shimano SLX SL-M7000

Cassette

Shimano SLX CS-M7000, 11-42T

Chain

Shimano CN-HG600-11

Brakes

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

TypeHydraulic Disc

Wheels
Rims

CUBE EX21, 32H, Disc, Tubeless Ready

Front Hub

Shimano Deore HB-M6000, Centerlock

Rear Hub

Shimano Deore FH-M6010-B, 12mm, Boost, Centerlock

Tires

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

Rider Notes
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Last updated April 14
Not listed for 2,260 days