Shimano 105 2× Crankset (R7000 / R7100 Series) A reliable and efficient Hollowtech II crankset designed for road cyclists. Available in 50-34T, 52-36T, and 53-39T chainring options with crank lengths from 160 to 175 mm. The 105 crankset delivers smooth power transfer, stiff performance, and excellent shifting precision, making it a popular choice for both training and racing setups.