Vertex Sherco SE 300 2019on Top End Rebuild kit

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.