Fast rolling tightly spaced block tread with a wide centerline and tread that extends on the shoulders for responsive cornering performance Fast rolling tightly spaced block tread with a wide centerline and tread that extends on the shoulders for responsive cornering performance Microskin construction results in a lighter weight, tubeless ready tire RCGD - RaceGuard - A synthesis of special india rubber and several layers of nylon fabric offers very effective protection against penetration punctures while minimizing penalties MICRO - Patented construction consists of a high-tensile micro fabric which is vulcanized together with the rubber compound and the carcass EBIKE25 - has achieved a passing rating for use with E-Bikes up to 25kph and is ECE-R75 approved REF - Reflective sidewall striping or hotpatch to aid in low light visibility