Bolt on performance with new SLX M670. Instantly upgrade or custom build your next bike with Shimano's highly versatile SLX component group. Rider Tune any mountain bike with a smooth shifting, long running 2x10 or 3x10 drivetrain. Reign in chain slap with the roller clutch on Shimano's revolutionary Shadow rear derailluer. Put control in your hands with Ice Technologies disc brakes and the unrivaled ergonomics of the RapidFire plus shifter. Packed with market leading technology and the features riders demand, new SLX is captivating riders everywhere with exceptional performance and value.