The Hardcore Fender Hardware Kits are compatible with select Hardcore fenders, Full Fenders, Hardcore Recumbent Fenders, and SpeedEZ fenders. Includes: - Rear fender plastic clip - Fork and brake bridge-thru bolts - Stay bolts and lock washers Specific compatibility w/Planet Bike fenders: - 35mm Width: 700c x 35mm Fenders (Hardcore) - 45mm Width: 700c x 45mm (Hardcore, Full, and SpeedEZ); 700c Rear (Hardcore Recumbent) - 60mm Width: 26-inch x 60mm (Full, SpeedEZ, and Hardcore)