This is a new top quality piston ring kit for the 1986-1987 Honda ATC 125M three-wheeler. This ring kit is a high quality yet economically priced alternative to OEM. It is made to exact OEM specifications.  This kit comes in a variety of sizes, so please select the size you need carefully.  If you simply need piston kit, we offer these as well in our other listings. Also, since you're rebuilding your top end, you'll need the gaskets, which we offer in our store. Keep in mind, if your cylinder needs machining, we offer complete machine work as well---check out our services in our store.