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IRC tubeless tires are UCI legal on Valor rims. They were the NoTubes team tires until this season. Jake Wells' 2018 Nationals-Winning Singlespeed Scott Addict CX. © D. Mable / Cyclocross Magazine

IRC tubeless tires are UCI legal on Valor rims. They were the NoTubes team tires until this season. Jake Wells’ 2018 Nationals-Winning Singlespeed Scott Addict CX. © D. Mable / Cyclocross Magazine