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CUBE Reaction C:68X, SLX

Price
Not published
Germany
€3,499 Brand's site · 2026-11-11
United Kingdom
£3,499 Brand's site · 2026-11-11
Fork travel
100 mm
Wheels
29″
Drivetrain
1 × 12 34t / 10–52t
Gear range
520%
Weight
9.9 kg 21.8 lb · Reference configuration not specified
Frame
Carbon
Brakes
Hydraulic disc

Rider height by size (cm)

Size guide
  • SM 158–171
  • MD 168–180
  • LG 178–189
  • XL 186–199

Components

16 of 17 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part
  • Frame

    C:68X® Monocoque Advanced Twin Mold Technology, Boost 12x148mm, Full Internal Cable Routing, Dropper Post ready, UDH™, C:68X® Carbon Fiber Technology, Combining all our expertise from carbon frame building into the ultimate material, C:68X® carbon uses the optimum blend of fibre and nano particle-infused resin. Precision Advanced Twin Mold manufacturing means we can avoid bonded sleeves or inserts, too. It's the new benchmark for light, stiff and strong. Adjustable headset angle, When you're harnessing gravity, the trail is challenging and every second counts, the geometry of your CUBE is a critical component. That's why our adjustable headset allows you to tweak head angle, so you can set your bike up just the way you like it. A little slacker for more stability, or a little steeper for better agility. The choice is yours... Boost148, A wider hub makes a stiffer wheel, and a stiffer wheel means better handling. That's the thinking behind the Boost 148 rear hub standard, which allows wider flange spacing for better wheel performance without impacting on shifting accuracy or drivetrain efficiency. Simply put, you can go faster and harder with better handling and stronger wheels. Internal Cable Routing, Cables connect your handlebar controls to vital components like gears and brakes, but there's no need for them to get in your way. With Internal Cable Routing we've reduced clutter and maintenance by running cables through the frame, keeping them out of the way of dust and water contamination – or damage from abrasion – as well as cleaning up your bike's appearance. Agile Ride Geometry, For off-road riding you need a bike that responds quickly, but also feels stable and secure. That's where Agile Ride Geometry comes in. Offering an ideal blend of on-demand steering precision, climbing agility and descending stability, it's perfect for every rider who values their time on the trail. If you're a mountain biker, you'll instantly feel at home... Dropper Post Ready, A dropper post is a great accessory for adventurous riding, adding confidence and control on steep descents. Our Dropper Post Ready bikes are all set for this worthwhile upgrade, because they include internal cable routing for the remote lever that controls the seatpost. Once installed, you'll forget it's there... until you need it. Universal Derailleur Hanger, One standard for all: gear hanger replacement made easy thanks to the innovative Universal Derailleur Hanger. With a design that includes some room for pivoting to help prevent chain jams, it improves shifting performance and works with all drivetrains. Best of all, it's a standard part that is available anywhere. Advanced Twin Mold, With our Advanced Twin Mold process we use two precisely manufactured forms for our C:62® and C:68X® carbon frames. The first form is to ensure an accurate layup. The second, inner form keeps every individual fibre precisely where it needs to be while the frame cures. The result is a significantly lighter, stronger frame, with fibre density tailored to anticipated loadings at specific points. Not identified

Suspension

1 part
  • Fork

Sizes and geometry

Size explorer

Enter your height to highlight matching ranges.

Size MD

Table
Reach 436mm
Stack 610mm
Wheelbase 1117mm
Head angle 68.4°
Seat angle 74.5°
Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.
Size Reported by the manufacturer

Specifications

Frame and fork

Intended fit
  • Unisex
Frame material
  • Carbon
Bicycle weight
  • 9.9 kg
  • 21.8 lb

Suspension

Suspension configuration
  • Hardtail
Front travel
  • 100 mm

Drivetrain

Derived by Bikelake
Front chainrings
  • 1
Smallest chainring
  • 34
Largest chainring
  • 34
Rear sprockets
  • 12
Smallest sprocket
  • 10
Largest sprocket
  • 52
Lowest gear
  • 19.0 in
Highest gear
  • 98.6 in

Technical analysis

4 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

100 mm

This value is within the central range for this class.

Cohort
Mountain / Cross-country Model year: 2027
Sample
156 bicycles with this information
Coverage
84.3% of the class

Lowest gear

19.0 gear inches

This value is within the central range for this class.

Cohort
Mountain / Cross-country Model year: 2027
Sample
140 bicycles with this information
Coverage
75.6% of the class

Gearing

Estimated speeds at 80 rpm

This bicycle

Lowest gear
7.3 km/h
Highest gear
37.8 km/h

Total gear range 520%

Pedaling rhythm
80rpm
40
60
80
100
120

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2027 builds

Differences across 2027 builds
Specification This bicycle CUBE Reaction C:68X, SLX CUBE Reaction 200, TM CUBE Reaction 240, TM CUBE Reaction C:62, ONE CUBE Reaction C:62, PRO CUBE Reaction C:62, Race
Frame
Frame material Carbon Aluminum Aluminum Carbon Carbon Carbon
Bicycle weight 9.9 kg 9.8 kg 10.5 kg 12.2 kg 10.9 kg 10.8 kg
Suspension
Front travel 100 mm 50 mm 80 mm 100 mm 100 mm 100 mm
Drivetrain
Smallest chainring 34 32 30 32 32 32
Largest chainring 34 32 30 32 32 32
Rear sprockets 12 8 9 12 12 12
Smallest sprocket 10 11 11 10 10 10
Largest sprocket 52 38 42 51 51 51
Lowest gear 19.0 in 16.8 in 17.1 in 18.2 in 18.2 in 18.2 in
Highest gear 98.6 in 58.2 in 65.5 in 92.8 in 92.8 in 92.8 in
Cockpit
Shifting Electronic Mechanical Mechanical Mechanical Mechanical Electronic
Other specifications
Bottom bracket standard BB86/BB92 BSA BSA BB86/BB92 BB86/BB92 BB86/BB92
Fork spring Air Air Air Air Not informed Air
Tire width 2.35″ 2.25″ 2.1″ 2.25″ 2.25″ 2.25″
Wheel material Carbon Aluminum Aluminum Aluminum Aluminum Aluminum
Wheel size 29″ 20″ 24″ 27.5″ / 29″ 29″ 29″

No exact REACTION C:68X, SLX publication is available for 2026.

Other models in this family

10 models

Published versions from the same family and model year.

CUBE Reaction C:68X, SLX, by CUBE

This bicycle

Cross-country

Reaction C:68X, SLX

  • Weight: 9.9 kg
  • Suspension: 100 mm
  • Wheel size: 29″
CUBE Reaction 200, TM, by CUBE

General youth

Reaction 200, TM

Youth / General youth

  • Weight: 9.8 kg
  • Suspension: 50 mm
  • Wheel size: 20″
CUBE Reaction 240, TM, by CUBE

General youth

Reaction 240, TM

Youth / General youth

  • Weight: 10.5 kg
  • Suspension: 80 mm
  • Wheel size: 24″
CUBE Reaction C:62, ONE, by CUBE

Cross-country

Reaction C:62, ONE

Mountain / Cross-country

  • Weight: 12.2 kg
  • Suspension: 100 mm
  • Wheel size: 27.5″/29″
CUBE Reaction C:62, PRO, by CUBE

Cross-country

Reaction C:62, PRO

Mountain / Cross-country

  • Weight: 10.9 kg
  • Suspension: 100 mm
  • Wheel size: 29″
CUBE Reaction C:62, Race, by CUBE

Cross-country

Reaction C:62, Race

Mountain / Cross-country

  • Weight: 10.8 kg
  • Suspension: 100 mm
  • Wheel size: 29″
CUBE Reaction, PRO, by CUBE

Cross-country

Reaction, PRO

Mountain / Cross-country

  • Weight: 14.0 kg
  • Suspension: 100 mm
  • Wheel size: 27.5″/29″
CUBE Reaction, SLX, by CUBE

Cross-country

Reaction, SLX

Mountain / Cross-country

  • Weight: 13.3 kg
  • Suspension: 100 mm
  • Wheel size: 27.5″/29″
CUBE Reaction TM, ONE, by CUBE

Trail

Reaction TM, ONE

Mountain / Trail

  • Weight: 16.1 kg
  • Suspension: 140 mm
  • Wheel size: 27.5″/29″
CUBE Reaction TM, PRO, by CUBE

Trail

Reaction TM, PRO

Mountain / Trail

  • Weight: 15.5 kg
  • Suspension: 140 mm
  • Wheel size: 27.5″/29″

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