Lifeline prime race road tyreprime time inspired by cyclists sprinting for lsquoprimes pronounced lsquopreems in criterium races, lifeline prime race tyres are designed for high speeds, tight bends and the pursuit of victory. The slick centre tread keeps straight line rolling resistance to an absolute minimum while a channeled pattern in the shoulders provides increased grip in the corners and helps to shift surface water in poor conditions. The 60a durometer compound offers excellent traction for confidence on twisty descents and hairpin turns. Case closed the 120tpi threads per inch casing provides increased strength and flexibility while reducing weight. This allows the tyre to withstand the high pressures needed for racing, and the reduced rotational mass offers faster acceleration and agile handling. A tough and lightweight kevlar breaker sits beneath the tread to guard against sharp road debris, helping prevent punctures and keeping you out on the roads for longer. The aramid folding beads provide a secure interface with the rim whilst also allowing easy installation. 23mm or 25mm? Lifeline prime race road tyres are available in 23mm and 25mm options so you can choose between the feedback and precision of 23s, or the more cushioned and stable feel of 25s. Custom colours are also available to match with your kit theme.featuresfast rolling slick centre treadchannelled shoulder tread for wet weather cornering tractiongrooved arrowhead tread channels water away from the center for wet weather tractionkevlar breaker for effective puncture protectionitylightweight 120 tpi casingweight 219gpsi 90 110sizes 700 x 32c 35cbuy lifeline tyres from chain reaction cycles, the world's largest online bike store.