Quote Originally Posted by forchetto View Post
Mine has a 428 chain, but some models have a 520. To find out measure the pitch, that is the distance between pins or rollers.

428 will be 1/2" (12.5 mm), and 520 will be 5/8" (15.8 mm).

Do let us know what it feels like with a 39 tooth sprocket, specially in terms of any clutch slipping when pulling away, acceleration and cruising revs, etc.
Does that matter when buying a sprocket? and I thought the 16t front sprocket didnt fit will because of some spacers it didnt have and made a loud clunking noise when you shift? its a 2008 qingqi 200 what size chain do they come with