KMC React Cassette
Best durable drivetrain upgrade for high mileage commuters and electric bike riders.
A reliable, hardened steel cassette designed for riders who need a wide gear range without breaking the bank. It offers smooth, consistent shifting across a 10-speed drivetrain and fits standard HG freehub bodies, making it a straightforward upgrade for most mountain bikes.
$46.00
at
Airpark Bike Co
More REACT options
Who it's for
- Mountain bikers seeking consistent gear changes on technical climbs
- E-bike riders needing components that handle high motor torque
- Home mechanics looking for a versatile replacement part
Who should skip it
- Weight-conscious racers prioritizing the lightest possible build
- Owners of modern 12-speed drivetrains requiring specific spacing
- Cyclists with specialized XD or Micro Spline hub systems
Performance breakdown
Climbing Versatility
The 11-42t range provides ample gearing for tackling steep, technical ascents.
Durability
Hardened steel construction ensures long-term resilience against high-torque trail riding.
Installation Ease
Standard HG freehub compatibility makes upgrading your drivetrain straightforward and quick.
Weight Efficiency
Heavy steel build prioritizes longevity over lightweight racing performance.
Shifting Precision
Reliable tooth profiling delivers consistent, smooth gear changes under load.
Component Compatibility
Works seamlessly with most standard 10-speed mountain bike drivetrain setups.
Key Specs
Speed
10
Range
11-42t
Material
Hardened steel
Hub Compatibility
HG
Weight
816 grams
Sprocket Teeth
11-13-15-18-21-24-28-32-36-42
Know before you buy
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Ask Metto anything about the KMC React Cassette before you decide.