Wtb st i 29 mtb rimthe st range of rims designed by wtb offer a high performing tubeless compatible rim without the costs once involved when considering a tubeless setup ideal for most styles of riding everywhere from cross country all mountain and gravity trails they are heavy duty but are of a desirable weight tubeless compatible systemthe tcs technology designed by wtb means a lightweight tcs tyre can be used with their tcs wheels creating a lightweight setup that will provide superior