Our latest racing tires are available only in the 24mm "mid-width" size, which provides more traction than 22mm tires and less rotating weight than 26mm tires. Since this tire was designed for serious racing, we added a new type of fabric belt inside the tire for even tire wear. No more 'grooving' a tire! Also, we have five different inserts available for 24mm tires, see our Inserts Page for part numbers. In addition to the new tires and inserts, we have cool new 24mm Type R5 wheels (#3735) to mount these or any 24mm tires!