Inspired by the dust, sand, and challenging terrain of gravel races, the ONZA ALLEGRA X4 is designed for cyclists who push beyond the limits. Its compact center tread provides maximum speed on straightaways, while the aggressive, curved knobs on the shoulders offer excellent grip in fast corners and technical sections. The open transition zones prevent the buildup of mud and sand, keeping you fast even when the trail is not. Built with a 120 TPI tubeless-ready casing and a GEC cut-resistant casing, the ALLEGRA X4 performs at its best on compact terrain, loose gravel, and muddy trails, all at race pace.