Shimano FC-4550 10 Speed Compact 50/34T Chainset - 170mm Inc Chain Guard - Black Chainsets The SRAM Black Box ceramic

The SRAM Black Box ceramic derailleur pulleys are made of the same material as the standard pulleys

The Deore M615 Disc Brake is compatible with the revolutionary centerlock rotor system and conventional 6-bolt rotors

Two piston caliper with self-adjusting pads

"Zero Setting" And "Riding Setting": used to set the initial configuration of the components and make fine adjustments during a race

Ultra-Shift teeth design means that every sprocket is designed and placed to perform a specific function

Shimano FC-4550 10 Speed Compact 50/34T Chainset - 170mm Inc Chain Guard - Black Chainsets The SRAM Black Box ceramicShimano FC 4550 10 Speed Compact 50 34T Chainset 170mm Inc Chain Guard Black This 2 piece cap free design Tiagra level 10 speed compact chainset offers unbeatable performance, sporting many features from the pro level equipment, this allows a quick and easy installation whilst delivering a lighter feel compared to the traditional crank bottom bracket assembly. If you need quick and positive shifting, then the SG X chainrings with its pick up pins and