Wtb frequency i 25 mtb rimfrequency rims are renowned for their craftsmanship durability rigidity and tubeless simplicity a ust compliant inner rim profile provides standards driven consistency while a tape and sealant system eliminates precious rotational weight our legendary i beam 4d drilling and wt69 alloy further aid in lateral and torsional strength while maximizing lifespan featuresmaterial alloy 32 holedisc brake only tubeless compatible25mm internal rimbuy wtb wheels tyres fr