CeramicSpeed OSPW X Pulley Wheel System Shimano GRX/RX 2x11 - Coated Races Alloy Pulley Carbon Cage BLK ModelNumber=K1251 The lower spring rate in

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

ASTM F1952-15 standards

Intended use = Enduro/All-Mountain/Trail

Flared drops for better control and clearance when descending

Easy to Use

CeramicSpeed OSPW X Pulley Wheel System Shimano GRX/RX 2x11 - Coated Races Alloy Pulley Carbon Cage BLK ModelNumber=K1251 The lower spring rate inThe 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