The K-Force Light Double is our lightest MTB crankset, thanks to the hollow unidirectional carbon crank arms and twin-ring setup. Having one fewer chainring (and doing without the mounts for an inner ring on the spider) cuts significant weight – at 560g the K-Force Light BB30 double is 60g lighter than the triple. Several chainring combinations are available, allowing for a range of purposes and wheel sizes. Racers on 26 or 27.5in wheels can opt for a 42/28 setup, recreational 29er riders might want the 36/22. All options have a narrow 46.5mm chainline and are designed to work with 10-speed setups.