OSPW Pulley Wheel System Vendor_TRP Machined and tested in the

Machined and tested in the USA

RaceFace Narrow Wide Chainrings feature tooth profiling for chain retention and a blend of weight and durability suitable for XC

Vacuum sealed

The Zipp Service Course stem delivers all you look for in a high-performance stem - strength

OSPW Pulley Wheel System Vendor_TRP Machined and tested in theThe 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: Features 13 tooth upper and 19 tooth lower, aluminum pulley wheels with Grade 3 Silicon Nitride balls Robust cage crafted from polyamide and carbon fiber for durability and light weight Hardened steel bearing races Only compatible with Dura Ace 9100 9150