CeramicSpeed OSPW Pulley Wheel Aero Alpha System Shimano 9250/8150 - Coated Races Aluminum Pulley Carbon Cage BLK Model=Tiagra FC-4703 Crankset Nylon bristles for durability

Nylon bristles for durability

HITOP Technology produces proprietary rim layup to provide compliance and confidence when the trail gets rough

Large recommended for size 10-15 (43-49)

BB Included No Chainline/Hub Compatibility 135/142 Road Disc Hubs < 415 mm Chainstay Chainline/Hub Compatibility 141/148 Boost Hubs Chainring BCD Direct Mount SRAM Color Iridescent Gray Crank Intended Use Road Crank Intended Use Gravel Crank Length (mm) 170 Defined Color Gray Drivetrain Speeds 12 Pedal Spindle 9/16" Rings 48/35 Spindle Interface Type SRAM DUB

CeramicSpeed OSPW Pulley Wheel Aero Alpha System Shimano 9250/8150 - Coated Races Aluminum Pulley Carbon Cage BLK Model=Tiagra FC-4703 Crankset Nylon bristles for durabilityCeramicSpeed 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