WTB KOM TCS i25 32h 29" Rim KOM rims showcase what alloy is truly capable of. Light enough to spin your way to the top, wide enough to own your way to the bottom.Open channel design and high-end WT69 Alloy make for an incredibly light weight rim. Cross-Country / Trail / Gravel / Cyclocross TCS inner rim profile guarantees easy, reliable tubeless performance. 25mm internal rim profile 465 grams