The ExtraTerrestrial is an ultra-durable touring tire designed to provide low rolling resistance and durability on various multi-road surfaces, and the low-profile, directional tread pattern maintains traction when its needed.Molded tread pattern for anti-cut propagationKevlar cap under the tread to protect against flatsNylon breaker in the sidewalls for cut protectionRecommended rim width: 23 “ 30mm