Aluminum Alloy Crank Arm Set 170mm 2 Pack For Bafang BBS Mid Drive Motors BBS01 BBS02 BBSHD Electric Bike Conversion Kit Diamond Hole Compatible Beefed Up Durable Lightweight Upgrade
✔️ Left and right crank arms, 170mm, diamond hole interface fit
This crank arm set works with Bafang mid-drive motors such as BBS01, BBS02, BBS01B, BBS02B and BBSHD, and is also compatible with M200, M300, and M400 motors. It is made from aluminum alloy, offering strength and durability while keeping weight in check. The package includes a left crank L and a right crank R with a 12.2 mm spacing between square holes and BC-9/16''-20T round holes. For proper fit, check that your original crank arm interface is a diamond hole and ensure both arms have matching hole patterns. The color is black.
✅ Compatible with BAFANG BBS01 BBS02 BBS01B BBS02B BBSHD Mid Drive motors and M200 M300 M400 motors
✅ Left & right crank arms included; 170mm length; 12.2mm hole spacing and BC-9/16''-20T holes
✅ Aluminum alloy construction; sturdy, high hardness, and resistant to deformation
✅ Diamond-hole interface required on the original crank arm for proper fit
💡 What is a bicycle crank arm set used for in mid-drive e-bikes?
Handy drivetrain component that connects pedals to the bottom bracket and drives the chainring for power transfer.
- 170mm crank length fits common mid-drive setups and rider preferences
- Diamond or square hole interface compatibility expands frame options
- Alloy construction delivers light weight and lasting durability