Wtb frequency i 23 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 add cid and you can walk into any shop and not worry about proprietary parts needed featuresusagecross cou