CeramicSpeed OSPW Pulley Wheel System Shimano 9000/6800 Series - Alloy Pulley Carbon Cage BLK MFPN=11100289 Windproof backhand with breathable 3-layer

Windproof backhand with breathable 3-layer Interlock polyester

Black with gray graphics

Aluminum outer shell for durability and light weight performance

the fresh optical design enhances light dispersion

0 Color Blue Material Aluminum Defined Color Blue S

CeramicSpeed OSPW Pulley Wheel System Shimano 9000/6800 Series - Alloy Pulley Carbon Cage BLK MFPN=11100289 Windproof backhand with breathable 3-layerThe CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low friction bearings and unique overall design. Features two oversized 17 tooth aluminum pulley wheels with Grade 3 Silicon Nitride balls Robust cage crafted from polyamide and carbon fiber for durability and light weight Defined Color Black Drivetrain Speeds 10 Fits Brand Shimano Fits Model Dura Ace 7900 7970