OPEN Cycle Rear Derailleur Hanger - For O-1.1

This Open Cycle Rear Derailleur Hanger is designed for the previous generation (O-1.0/O-1.1) hardtail frame. It is suitable for all derailleurs (Shimano, SRAM, Campagnolo) using the standard mounting. If you have any questions about Open Cycle and compatibility with your frame please call us at the shop at 801.364.0344 or email info@contenderbicycles.com.