absoluteBLACK HOLLOWcage Oversized Derailleur Pulley Cage - For Shimano Dura-Ace 9250 Full Ceramic Bearings Carbon Cage Titanium Manufacturer Spec ERD (mm)-388 Gender/Age Adult Rotational Protection Yes

Gender/Age Adult Rotational Protection Yes Minimum Head Circumference 52 Color Polar White Size Medium Visor Included Yes Multi Impact No Helmet Certifications Complies with the U

5 Thread Length (mm) 13 Axle Diameter (mm) 12 Overall Length (mm) 172

Is not compatible with EPS V1

0 Length 246 Spoke Interface J-Bend Defined Color Silver

absoluteBLACK HOLLOWcage Oversized Derailleur Pulley Cage - For Shimano Dura-Ace 9250 Full Ceramic Bearings Carbon Cage Titanium Manufacturer Spec ERD (mm)-388 Gender/Age Adult Rotational Protection YesabsoluteBLACK HOLLOWcage Oversized Derailleur Pulley Cage For Shimano Dura Ace 9250 Full Ceramic Bearings Carbon Cage Titanium. The absoluteBLACKs HOLLOWcage for Shimano Dura Ace 9250 12 speed derailleurs makes the 9250 drivetrain whisper quiet. It features a carbon polymer mono plate construction with bespoke oversized full ceramic bearings and one of the most advanced silencing pulleys ever made. Designed for use with Shimano Dura Ace 9250