Ultra high-performance to a broader range of conditions with a reinforced casing, wider tread cap and dedicated Dynamic:Silica4 compounding to minimize rolling resistance while enhancing wet grip. Our Dynamic:Silica4 compound is formulated to minimize rolling resistance while enhancing wet grip. The R:Shield is a breaker belt found underneath the tread cap, providing an extra layer to improve puncture protection while maintaining optimal rolling resistance characteristics. A clincher tire that is only functional with an inner tube to maintain inflation pressure as defined by ISO 4223-1. The historically standard bicycle tire relies on the use of an inner tube to maintain inflation pressure. The inner tube serves two purposes; maintaining inflation pressure along with providing physical pressure on the tire's bead against the rim hook and sidewall to help keep it safely in place.
