These are the Split 5 Spoke Rear Chrome Truck Wheels from HPI. This mounts onto axle and the tire mounts to it. FEATURES: Nylon construction Chrome plating Split 5-spoke deep dish type These wheels fit onto Associated, Losi, Tamiya, Kyosho, Traxxas and other HPI trucks such as the Nitro RS4 MT and RS4 MT. YOU WILL RECEIVE: Two Rear Split 5 chrome truck wheels Two aluminum washers One adapter set for many popular wheel mounts REQUIREMENTS: 2.2" rubber truck tires CA glue to attach rubber tires SPECIFICATIONS: Diameter: 2.2" (56mm) Width: 2.0" (51mm) COMMENTS: Four wheel drive trucks will use these rear rims on the front also.