For an all-round excellent performance: the Shimano Ultegra FC-M6800 Compact crankset. Shimano used Hallowtech technology in order to use as little material for the design as possible, making the crankset particularly lightweight without compromising power transfer. The result: a crankset with an optimal balance of stiffness and rotating performance. The smaller, compact chain ring will allow you to have access to smaller gears, making it easier to go up steep hills. Plus, you can add more chain rings, if necessary. The Ultegra FC-M6800 Compact 11-Speed crankset is a high-quality upgrade for any bike. Plus, it wont add unnecessary weight to your bike.