Rebuilding a 85 350x - the front sprocket has 15 teeth!!! stock is 13, right?

Any feedback on 0-ring or not on the chain?

 

Stock front sprocket is 13
15 will make faster on topend if all you are looking for is flatout
All around riding on that trike I would stay with the 13

For chain the O-Ring is more expensive as they will outlast a standard chain
Especially if you ride in the water or wet areas as they will keep out the moisture

Non O-Ring chains are cheaper to buy but wear fast
You will get what you pay for
Good luck
Ray

 

Thanks, appreciate your feedback and advice.