JRL 10x47mm Piston Rings for 66cc 80cc Engine Motorised Bicycle Bike

They're cheap. You'll go through them if you have a china doll engine. They work just be careful because they're fragile.

These piston rings were put into my 80cc bike motor and they did just as good as more expensive brands, plus u get 10 of them so u can't really beat that.

Broke the rings on my motor trying to rebuild it. Got these installed easily and holding up great

No complaints

I like the fact I can re ring any time I feel. Great price I just wish you can provide the ld90 piston and rings

Very fragile I busted two replacing rings on my piston

Good quality rings. I already installed one set into my 80cc motor and it's working great. It's nice to have spare sets for later as well.

Item shipped same day I ordered and was in my hands the following day. Parts were correct and had no issues. Definitely reccomend them and will use them again for future parts.

I have a racing motor from BikeBerry and had to replace the piston rings as they where worn-very normal, but after replacing them I toke the bike for a spin and almost went full speed (this sounds crazy but my top speed is 70km/h!) so at about 65 I felt a jolt and slowed down, but nothing was wrong so kept on going but when I turned around the motor suddnly quit and would not start. I had walk home! I took apart the motor head and found out that the piston was stuck and the the whole head was trash.So don't go and blow your money as you will have to buy a whole new head like me!