CeramicSpeed OSPW Pulley Wheel Aero Alpha System for Shimano 9250/8150 - Coated Races Aluminum Pulley Carbon Cage Black. The CeramicSpeed OSPW Aero ALPHA system for Shimano 9250/8150 derailleurs updates the fastest proven aero derailleur cage to include CeramicSpeeds patent pending ADR bearing protection and quiet performing ALPHA disc with composite tooth profile pulleys. Furthermore a speed defying pinstripe graphic has been added for a splash of visual motion.
- TECH SPECS