Diamond knurled slick design tire bred for training and long wear life Diamond knurled slick design tire bred for training and long wear life One of Maxxis` most popular training and road tire now with a stylish skinwall DC - Dual Compound tread provides a lower rolling resistance center paired with extra grip for the corners MS - MaxxShield , represents the pinnacle of flat protection with 2 layers of puncture resistant belting TR - Tubeless Ready - sealant required