One Pair Square Hole Bike Crank Arms 140mm 152mm 160mm 165mm 170mm 175mm Alloy 6061 Black For E Bikes And Electric Bicycles Heavy Duty Forged Aluminum Crankset
✔️ Six sizes: 140/152/160/165/170/175mm, square taper, L/R labeled
These crank arms are designed for electric bicycles, delivering a sturdy connection between pedals and the bottom bracket for reliable power transfer in e-bike systems. They are typically used on electric bikes with square taper spindles and require precise L/R orientation.
✅ Available sizes: 140mm, 152mm, 160mm, 165mm, 170mm, 175mm
✅ Material: forged 6061 aluminum for strength and light weight
✅ Spindle interface: square taper to fit compatible cranks
✅ Left and right arms labeled L and R for correct install
✅ One pair included; two crank arms for e-bike use
✅ Installation tip: ensure correct L/R orientation to avoid non-working
💡 What is a square taper crank arm used for on electric bikes and how do you choose the right size? - A square taper crank arm attaches to the bottom bracket spindle and provides a mounting point for pedals, letting you transfer power from pedal to drivetrain. - Choose the length to match your riding style and ensure compatibility with your crankset and bottom bracket. - Make sure both sides have matching L and R arms and the spindle is square taper for secure fit. - This setup is handy for quick swaps on e-bikes and stays reliable under heavy use.