Improve the Performance of your Electric Bike with For Bafang ChainRing Adapter
For bafang M500/G520, M510/G522, for M600/G521M620/G510, M420/G332, M615/M820. Used to replace electric bike part，forM500 M510 for M600 M620 G510 G521 series motors. Specifications: BCD104mm-can match chainrings with different numbers of teeth.