140/80-19 FT40 second generation Flat Track tire has an awesome new tread design. C'mon you know you love it! This is the optimal rear tire for flat track bikes that need to throw down faster lap times. This tire is designed and developed with the same compound and performance that all dirt track Hoosier Racing Tires are made from. The FT40 compound is our soft intermediate compound intended for ½ mile track racing. Note: this tire is designed for an advantage over the competition. In some cases fun may be included!