Product Description with DU-E8000 and other motors The STEPS FC-E8000 crank arms from Shimano are suitable for MTB, touring, and city e-bikes with DU-E8000, DU-E7000, DU-E6100, and DU-E6110 motors. They feature 24 mm axle splines and are mounted directly on the drive unit's axle. The crank arms are made of painted aluminum and are solid. When used with the DU-E8000, you get a Q-factor of 177 mm; in combination with the other motors, the Q-factor is 180 mm. In these cases, you can also use the FC-E8000 with a chain guard. Thanks to their rigidity, the FC-E8000 can easily withstand the high forces typical of electric bikes. Guidelines for Replacing E-bike Components: Before you replace components on your e-bike, please read through the guidelines for component replacement for CE-marked e-bikes/pedelecs with pedal assistance. Specifications: Application: All Mountain, Cross Country, City & Touring Compatibility: 1x Technical Information: Series: STEPS Crank Arm Material: Aluminum Crank Arm Length: 160.0 mm, 165.0 mm, 170.0 mm, 175.0 mm Q-Factor: 177 mm / 180 mm Axle Diameter: 24 mm Compatibility: Motors: DU-E8000 DU-E7000 DU-E6110 DU-E6100 DU-E8080 (Japanese market only) DU-E6180 (Japanese market only) Chain Guard: compatible in combination with DU-E7000 / E6110 / E6100 Features: special crank arm set for e-bikes solid aluminum painted Q-factor 177 mm in combination with DU-E8000 Q-factor 180 mm in combination with DU-E7000 / E6110 / E6100 stiff construction for the best power transfer Manufacturer Numbers: 160.0 mm: E-FCE8000MX 165.0 mm: E-FCE8000AX 170.0 mm: E-FCE8000CX 175.0 mm: E-FCE8000EX Contents: 1 x pair Shimano STEPS FC-E8000 Crank Arms 2 x crank bolts Manufacturer: Shimano Europe B.V. High Tech Campus 92 5656 AG Eindhoven Netherlands info@shimano-eu.com