![]() ![]() ![]() ![]() Some manufacturers also make bicycle cranks that can be adjusted to different lengths. A few small specialty manufacturers make bicycle cranks in a number of sizes smaller than 165 mm and longer than 180 mm. The larger bicycle component manufacturers typically offer crank lengths for adult riders from 165 mm to 180 mm long in 2.5 mm increments, with 170 mm cranks being the most common size. Crank length is measured from the center of the pedal spindle to the center of the bottom bracket spindle or axle. Bicycle cranks can vary in length to accommodate different sized riders and different types of cycling. ![]()
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