absoluteBLACK HOLLOWcage Oversized Derailleur Pulley Cage - For Shimano Ultegra 8150 Full Ceramic Bearings Carbon Cage BLK size-700c Available with 48-millimeter and 53-millimeter

Available with 48-millimeter and 53-millimeter extensions they are cold forged from the highest quality 6061-T6 aluminum then CNC machined to enhance the shape and further reduce weight

Fits wheelbases up to 50"

9 (1-3/8") Front Derailleur Cable Pull Dual Front Der/Shifter Compatibility Shimano Mountain Max Ring (teeth) 40 Front Derailleur Style Traditional

}Shimano Tiagra BR-4700 Front Brake Caliper

8 Drop Bend Style Compact Cable Routing External Material Aluminum Width Measurement Center Width 38 Defined Color Black Clip-on Compatible No

absoluteBLACK HOLLOWcage Oversized Derailleur Pulley Cage - For Shimano Ultegra 8150 Full Ceramic Bearings Carbon Cage BLK size-700c Available with 48-millimeter and 53-millimeterabsoluteBLACK HOLLOWcage Oversized Derailleur Pulley Cage For Shimano Ultegra 8150 Full Ceramic Bearings Carbon Cage Black. The absoluteBLACKs HOLLOWcage for Shimano Ultegra 8150 12 speed derailleurs makes the 8150 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 Ultegra 8150 drivetrains