All models listed with multiple axle sizes separated by a / include adapters for use with each axle configuration listed Brake Compatibility 6-Bolt Disc, Disc Cassette / FH Body Type Threaded, Threaded - English Hub Spacing 135mm Internal Rim Width 21mm ISO Diameter 584 / 650b / 27.5" Material Aluminum Rear Axle Type Standard QR Skewer Included Yes Spoke Count 36 Tire Type Clincher Valve Type Schrader UPC 888571032008 MPN 640282