Pro lite revo gx gravel wheelsetthe revo gx provides the reliability, rolling performance, responsiveness and low weight required for successful gravel racing. Combining the strengths and durability of a mtb wheelset and the rolling prowess of the unique road revo wheels, this design rolls with race winning authority over any terrain. Spinning on high quality japanese ezo bearings and featuring a tubeless ready, extra wide rim, it's prepared for any challenge off road riding can present.features material rim 6061 alloy hub freehub alloy spokes sandvik stainless steel nipples brass rim width 23mm spoke type 2.0 straight, rounded spoke lacing 3 cross bearings japanese ezo freehub shimano 10, 11 speed hub spacing front 100mm rear 135 142mm weight 1.8 kgbuy pro lite wheels tyres from chain reaction cycles, the world's largest online bike store.