Wheels Manufacturing CN-R063 Rear Axle Cone, 17 x 16-mm Compatible with Shimano XT M737 8 speed rear STX RC MC38 8 speed rear STX STX RC MC30 32 33 7 speed rear Alivio MC18 8 speed rear Alivio MC12 7 speed rear Acera X MC290 7 speed rear Altus RM 40 7 speed rear FH R080 Silent Hub 8 speed rear Also compatible with FH R050 Silent Hub 7 speed rear Compatible with Shimano rear 10mm x 1 axle Left rear cone One cone per bag