170 Millimeter Diamond Hole Crank Arm For BBS02 HD Mid Drive E Bike Kits Aluminum Alloy Crank Leg Fits Mid Motor E Bike Right Drive Side Beefy Durable Construction For Tough Trails And Daily Commuting

170mm Diamond-Hole Crank Arm for BBS02 HD Mid-Drive E-Bikes
✔️ 170mm hole spacing, 210mm total length, aluminum alloy, black

The crank arm is a right-drive side replacement for BBS02/HD mid-drive e-bike kits. It’s built from aluminum alloy for durability and features a diamond-hole interface in black.

✅ Fits BAFANG AC-08-2 interface with BBS02B/HD mid-drive kits
✅ Aluminum alloy construction for durability on tough trails
✅ Diamond interface hole with 170mm hole spacing and 210mm overall length
✅ Right-drive side; left is non-drive and left pedal is reverse threaded

💡 What is a 170mm diamond-hole crank arm used for in BBS02 HD mid-drive e-bike systems?

It's a handy replacement part that helps maintain proper chainline and drive-side fit on mid-drive bikes.

- Designed for BAFANG AC-08-2 interface and BBS02B/HD mid-drive kits
- Ensures correct 170mm hole spacing and 210mm overall length
- Aluminum alloy construction for durability on tough trails