SHIMANO Steps EM900 Hollowtech E-Bike crank

Shimano Steps E-Bike Hollowtech - Crank Arm Set - E-Mtb Designed for the rigors of mountain bike riding, the SHIMANO STEPS FC-EM900 is a dedicated E-MTB crank uses HOLLOWTECH II crank arms that same appearance as FC-MT900. It is available with 160 mm, 165 mm, 170 mm, 175 mm crank arm lengths. Specifications: - E-MTB dedicated cranks integrate more cleanly - Stiff and lightweight hollow forged crank maximizes power transfer while limiting weight - 24 mm bottom bracket spindle - Crank arm length (mm): 165 Technologies: Hollowtech Crank Arm: - Hollow forged crank arms - A lightweight crankset not only reduces the bike’s weight, but decreases rotating mass to aid in acceleration. - The challenge is to reduce the weight of the crank without reducing its strength and rigidity. - SHIMANO’s advanced forging technology has solved the problem through the HOLLOWTECH crank. - Just like high quality frame tubing, a hollow crank arm can provide amazing strength and rigidity at very lightweight.