CeramicSpeed OSPW X Pulley Wheel System Shimano GRX/RX 2x11 - Coated Races Alloy Pulley Carbon Cage BLK ModelNumber=K1251 5" (140mm) Width 28

5" (140mm) Width 28

Size S Color Twisted Platinum Gender Unisex Primary Color Black Core No

Generous sidecut and modest tip rocker make for effortless turns in a range of conditions

The lower spring rate in turn gives a lighter lever action reducing rider fatigue and keeping our legendary feel and modulation

Flared drops for better control and clearance when descending

CeramicSpeed OSPW X Pulley Wheel System Shimano GRX/RX 2x11 - Coated Races Alloy Pulley Carbon Cage BLK ModelNumber=K1251 5" (140mm) Width 28The 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 13 tooth upper and 19 tooth lower Cerakote coated aluminum pulley wheels with Grade 3 Silicon Nitride balls Robust cage crafted from polyamide and carbon fiber for durability and light weight Coated bearing races increase bearing service life by increasing