Ruedas Jockey de fibra de carbono con rodamientos de cerámica para Shimano y SRAM 6,5 g 11 velocidades
ACER Racing presents our 11 tooth Carbon Fiber Jockey Wheels with Ceramic Ball Bearings for Shimano (if you have SRAM (except SRAM GX) derailleurs let us know, these will fit and we can send you an adapter).