Easy to use and install,M620 G520 needs to add a washer good compatibility. Used to replace electric bike part，forM500 M510 for M600 M620 G510 G521 series motors. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
Chainring Sprocket 42T for Bafang BBSHD Mid Drive Motor Electric Bike Replacement Chainwheel Protector,Red
Aliexpress UK
For bafang M500/G520, M510/G522, for M600/G521M620/G510, M420/G332, M615/M820. Specifications: BCD104mm-can match chainrings with different numbers of teeth. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
E-bike 42T Chain Ring Offset Correction 6 7 8 9 Speed ChainRing FOR BAFANG BBS01 BBS02 Electric Bicycle Aluminum Alloy Cycling
Aliexpress UK
For bafang M500/G520, M510/G522, for M600/G521M620/G510, M420/G332, M615/M820. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
BAFANG 36T/38T/40T/42T/44T/46T/48T/52T Chain Wheel for BBS/BBSHD Mid-drive Motor CNC Chainring Sprocket Electric Bicycle Parts
Aliexpress UK
For bafang M500/G520, M510/G522, for M600/G521M620/G510, M420/G332, M615/M820. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
Electric Bicycle Chainring With Adapter For Bafang BBS01/02 32T 34T 36T 38T E-bike Chain Rings Crankset Cycling Accessories
Aliexpress UK
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. easy to use and install,M620 G520 needs to add a washer good compatibility.
eBay
Crankset Adaptor for Bafang Central axis Torque Sensor（ Ultra Light 7075 Chainring ）
Aliexpress UK
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. easy to use and install,M620 G520 needs to add a washer good compatibility.
eBay
GUSTAVO Electric Bicycle Mid Drive Motor Chainring Chain Wheel for Bafang BBS01B BBS02B BBS01 BBS02 42T 44T 46T 48T 52T
Aliexpress UK
For bafang M500/G520, M510/G522, for M600/G521M620/G510, M420/G332, M615/M820. Material: aluminum alloy. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
GUSTAVO Electric Bicycle Chainwheel 42T 44T 46T 48T For BAFANG 8FUN BBSHD M625 1000W Mid Drive Motor Bike Chainring
Aliexpress UK
Teeth: 34T ,36T ,38T,40T options. Used to replace electric bike part，forM500 M510 for M600 M620 G510 G521 series motors. easy to use and install,M620 G520 needs to add a washer good compatibility. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness.
eBay
Soverup For Bafang BBS 01 02 36T Chainring Offset Correction Electric Bicycle Chain Ring Aluminum Alloy 6061-Ebike Spare Parts
Aliexpress UK