We just had these made. 10-5-1 comp, stock is 9-8-1 a little extra compression with this kit. Bolt on ready. No modifications required! Pre-bored and honed to 63.00mm Comes with every seal and gasket to rebuild your top end! We have been running one of these on a atc200 3 wheeler For a over a year hard. No issues! We recommend a certified mechanic to do your rebuild!! These will fit the atc200m 1984 and 1985. THESE ARE THE CORRECT CYLINDERS!. NO HOLE FOR CAM CHAIN ADJUSTER! Dont be fooled by other sellers. These are brand new and first listed
Here on ebay! . Cylinder And Piston New with gaskets !