This Open Cycle Rear Derailleur Hanger is designed to work with the OPEN WI.DE and OPEN MIN.D. 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.