Shimano Ultegra R8100 Left Crank - 170

The Shimano Ultegra R8100 left crank is compatible with the same Ultegra R8100 12-speed crankset. Available in 4 lengths 165, 170, 172.5 and 175 mm, it completes the right crank with the chainrings to form a complete crankset. It reduces weight and maintains strength for better power transfer and faster, more precise front shifting.Features:Use: RoadLengths: 165, 170, 172,5 and 175 mmSpeeds: 12Generation Hollowtech IIReduces weight and maintains drag for better power transfer and faster, more accurate front shifting