WTB Nano Raptor Cross Country Mountain Bike Tire XC / Trail / Dry to Damp / Pavement to Sand Blends minimal rolling resitance with consistent traction The tire of choice for endurance racing and touring TCS tubeless for proven reliability and supple traction 575g For use with inner tube only Nano raptor is a popular choice for short track XC races, dirt jumping and urban sessions Do not use with tubeless tire applications