WTB KOM i21 27.5" TCS Rim, 32 hole, Black

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WTB’s KOM rims showcase what is possible with our WT69 alloy. KOMs are designed for one thing only: winning. Light enough to spin your way to the top, wide enough to own your way to the bottom.
4D drilling provides a perfect interface between the rim and spoke and eliminates the need for eyelets
On-Ramp feature provides consistent fit between rims and tire for easy installation and inflation
WT69 Alloy has superior strength and remains super light
Tubeless Compatible System (TCS)—rim profile is designed especially for TCS or UST tires and will also work with tube-type tires when used with tubes. TCS rims feature superior tire retention capabilities. TCS rim tape, valves and sealant is needed to run a tubeless set-up with TCS or UST tires