• FSA E-bike diecast crankset • Diecast AL crank arms • Length - 155mm, 160mm, 165mm, 170mm • BB - ISIS Drive • Black, Printed graphics • WEIGHT 456 grams (pair) • Drive Gear Type: Planetary • Line Diameter (IN): 3/8 Inch • Drum Material: Steel • Estimated Install Time (Hours): 2