BAFANG 42T Chainring for BBS01 BBS02 BBSHD Mid Drive Ebike Conversion Kit - Durable Aluminum Bike Chainwheel - Perfect for Electric Bike Motor Upgrades & DIY Conversions (Mountain/Commuter Ebikes)

BBS Chainwheel Core Data:★Suitability----Bafang Mid BBS Motor: MM G340★ Teeth Number----44T/46T/48T/52T★ Chain Line----50★Thickness----3/32"★ Chain Wheel Material----SPCC★Guard Material----Plastic PPBBSHD Chainwheel Core Data:★Suitability----Bafang Mid BBSHD Motor: MM G320★ Teeth Number----40T/42T/44T/46T★ Chain Line----42T/44T:60(68);62.5(73);71(90);76(100);81(110);86(120); ----46T:50(68);52.5(73);61(90);66(100);71(110);76(120)★Thickness----3/32"★ Chain Wheel Material----SPCC★Spider Style----42T/44T:5(§130)Attention:there are two kinds of chain wheel (BBS and BBSHD), please pay attention to the color name when you are going to order it.