Shimano STEPS FC EM900 Hollowtech crank arm set, W/O chainring, Black, 170 mm

Shimano Steps Em900 Hollowtech E-bike Crank. Shimano Steps E-Bike Hollowtech - Crank Arm Set - E-MtbDesigned 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): 165Technologies: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. tradeinn Bikeinn