Crankbrothers XD Driver w/12x148mm end cap Synthesis steel

Compatible with base model Synthesis E, XCT & E-MTB wheels Also compatible with Cobalt 1, 2 & 3, Iodine 2 & 3 and Zinc Twin Pair wheels HG 8-11sp: Not compatible with HG 11sp road cassettes Model Synthesis/Twin Pair Description Steel XD Driver w/12x148mm E