KOO Spectro for free

KOO Spectro for free

in full CRANKSETS with POWER METER
Cranksets Up to 40% Off

Cranksets Up to 40% Off

Designed to break limits
Carbon Cranksets 30% Off

Carbon Cranksets 30% Off

Experience extreme lightness and stiffness

Featured products Our New Arrivals

12s CompatibleNew release

We have released our new chainrings fully compatible with Shimano® 12 speed cranks and groupsets. Discover available sizes and get yours.

ROTOR historyThe result of a dream

ROTOR was born in Spain, when in 1994, two friends and enthusiastic cyclists set out to achieve something that many others had tried and failed to do: eliminate dead spots in the pedaling process.