Shimano R7000 Crankset 52/36 The Shimano 105 R7000 series chainset offers an optimal balance of weight and efficiency without sacrificing stiffness. These attributes make it the ideal choice for the enthusiastic endurance rider or aspiring competitive road racer. Rider tuned gear combinations provide the perfect choice for a set up to match your preferred riding style. The outer plate design had been developed to reduce the chances of chain suck, with wider gear pitching improving frame compatibility by providing increased chain clearance. Available in Black or Silver with 165,170,172.5 and 175 crank lengths.