Selling this cylinder: https://www.treatland.tv/yamaha-QT50-YT60-malossi-70cc-kit-p/malossi-qt50-kit-318007.htm
The cylinder is three months old, light streaks from piston, can not be felt via finger nail method, a good hone and you'll be good to go! Also included is a new O-ring for the treatland head, YT60 head, and stock QT50 head. All this fun stuff for the great price of $50 plus shipping!
I also have other QT50 parts for anyone interested!