Vertex Beta 300 2018-21 Top End Rebuild kit 72mm

Images shows the gaskets you will receive.  You will receive the correct parts for your model. It includes: Vertex piston kit in the size of your choice (A or B). Piston kit includes rings, pin, circlips and a high quality cast piston. Top end gasket kit.  Includes base gasket, powervalve cover gaskets, copper washers and O rings… all O rings are the correct size and made from the correct material, unlike the cheaper aftermarket kits. little end bearing Piston sizing: ideally you should measure your bore with a dial gauge to work out the correct piston sizing. If you cannot do this then a rough rule of thumb is use an A size under 100 hours of engine run time and use a B size over 100 hours of engine run time. Its ALWAYS better to have a bit too much clearance than not enough, so if in doubt use an A size.   RR 300 2T 2018-21 Xtrainer 300 2018-21