CZR i30 wheels were designed to handle it all. The rims are made with a strategically reinforced carbon layup that and are hand built using double-butted spokes and brass nipples, featuring hubs with top-tier bearings and oversized freehub seals to establish themselves as wheels that simply won't quit. CZR i30 Carbon Rim with 5mm of asymmetrical spoke offset, reinforced spoke beds and hookless bead, TCS Tubeless compatible Enduro-approved rim is optimized for tires 2.4 - 2.6" wide Frequency Hub with top-tier EZO bearings 28hole, 3-cross lacing with brass nipples Swift 6-pawl freehub and 5 degrees of engagement Solid rim strip and TCS tape included Specifications Cassette Body TypeSRAM XDRColorCarbonDefined ColorBlackHub/Brake Compatibility6-Bolt DiscISO Diameter622 / road / 29"Rear Axle12mm Thru x 148mmRim Width (Internal)30Tire TypeTubeless ReadyValvePrestaWheel Size29"