Quality Wheels Formula/WTB ST i30 29" Wheel Ready To Roll The wheels you use on your bike significantly impact your bike's performance and ride quality. If you want to get the most out of your bike's performance, you'll want to get some quality wheels. The Quality Wheels Formula/WTB ST i30 29" Wheel has a WTB ST i30 29" rim and a Formula hub. The rim has a 30mm inner width and is tubeless-ready so you can ditch the tubes and add sealant for a smoother ride and fewer puncture flats. Features WTB ST i30 29" rim that is lightweight and durable Formula hub rolls smoothly and lasts a long time Tubeless-ready rim for a smoother ride and fewer puncture flats when using sealant6-bolt and centerlock options are available so you can use either type Cassette body type: Shimano HGSPECIFICATIONSWheel Size29"Material Aluminum Outer Width-Inner Width30mm Rim Height-Spoke Drilling32HValve Type Presta Tubeless Yes Tire Type Clincher Brake Compatibility Disc (6-bolt or Centerlock)Front Axle15x100/QR x 100mm Rear Axle QR x 135mm, 12x142mm, 12x148mm Intended Use Trail, All-Mountain Approximate Weight N/A | Quality | Wheels Formula/wtb St I30 29" Wheel Rear, Qrx135Mm, 6-Bolt, Hg10 | Aluminum