CeramicSpeed OSPW X Pulley Wheel System Shimano XT/XTR 1x12 - Alloy Pulley Carbon Cage BLK MFPN=00.4318.002.019 Features reversible ratcheting head and

Features reversible ratcheting head and speed sleeve bit holder

29 Fender Mount Type Eyelets

The great performance of a JoeBlow series pump in a more affordable package

Shaping on the bottom side of the wing allows housing to be taped out of the way

CeramicSpeed OSPW X Pulley Wheel System Shimano XT/XTR 1x12 - Alloy Pulley Carbon Cage BLK MFPN=00.4318.002.019 Features reversible ratcheting head andThe CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low friction bearings and unique overall design. Features a 14 tooth upper and 18 tooth lower aluminum pulley wheels with Grade 3 Silicon Nitride balls to provide absolute optimization of the rear derailleur Robust cage crafted from polyamide and carbon fiber for durability and light weight Compact cage design