CeramicSpeed OSPW Pulley Wheel Aero Alpha System Shimano 9250/8150 - Coated Races Aluminum Pulley Carbon Cage BLK MFPN=00.4118.026.000 Body is CNCd from a

Body is CNCd from a solid billet of 6061 aluminum

Hardware is all stainless steel and pre-installed for hassle free mounting

and 16 clicks of rebound adjustment

Rotating gauge is easy to read and the head works with Presta

CeramicSpeed OSPW Pulley Wheel Aero Alpha System Shimano 9250/8150 - Coated Races Aluminum Pulley Carbon Cage BLK MFPN=00.4118.026.000 Body is CNCd from aThe CeramicSpeed OSPW Aero ALPHA system for Shimano 9250 8150 derailleurs updates the fastest proven aero derailleur cage to include CeramicSpeed's 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. Largest Cog 34 Fits Model Ultegra 8150 Fits Brand Shimano Drivetrain Speeds 12 Defined Color Black