650B

Ready to attack, easy to maneuver. With Wide Angle rim design providing superior stability, RAIL 40 can withstand the most aggressive All-Mountain / Enduro riding by setting a new benchmark for stiffness in its category. Featuring the perfect balance of strength, lightweight and width for enduro terrain, RAIL 40 delivers high-performance ride quality all the way down. - UST Tubeless - Convertible axles: Front Hub - QR 9x100, QR Torque Caps, 15x100, 15x100 Torque Caps, 20x110, 15x110, 15x110 Torque Caps. - Tire Type: Tubeless Ready Clincher