Malossi 50CC MHR Team Cylinder kit. Currently the strongest 50cc capacity kit, specially developed for racing For 12mm gudgeon pins. 6 overflow ports and 3-piece outlet port. Timing and design of cylinder require 85mm rod and 12mm gudgeon pins. Malossi offers a special MHR-RHQ crank for this cylinder, which we carry of course. Wide range of cylinder base gaskets allow for varying compression ratios. Supplied with all necessary parts.