Product Info Rims: WTB ST i23, inner width: 23 mm TCS 2.0 Tubeless system Solid Strip (included) protects and ensures a smooth surface between the tire and the rim Easy On-Ramp profile allows for a smooth tire installation and stress- free inflation Industrial Epoxy reinforced Pinned Joint provides repeatable tubeless consistency Drilled for Presta valve 32 holesFront hub: Formula DC20, M9x100mm 6-bolt disc mount