Thanks again mt. Helpful info.
Lifan Xpect sprockets available on Amazon below. Do not know about fitment on other brands, but if they are CG motors, I would think they would work.
Front
15 and 17 tooth available:
https://www.amazon.com/JT-Sprockets-...78&sr=8-1&th=1
Rear
Lots of options:
https://www.amazon.com/JT-Sprockets-...09&sr=8-1&th=1
I suspect any available aftermarket chain is gonna be better than the stock one. Just to be safe, I would not order one that was a lot cheaper than the average. I go with brand names I recognize.