New WTB ST I30 29" 32 Hole Rims - 30mm wide internal rim width and 35mm on the outside. Rear Axle: 12x 142mm Thru Axle. Front Axle: 15x 100mm Thru Axle. Six Bolt Disc Hubs on tubeless-ready rims. Cassette Body Type: Shimano/SRAM 8, 9, 10 Speed 11 Speed Mountain Bike Cassettes will fit the rear wheel!