Fits KTM EXC300 TPi 2018-2023. Graded size 71.925 A. The clearance is to allow for piston expansion when it heats up. Vertex Piston Kit, Vertex small end bearing and Vertex top end gasket set. Vertex pistons are coated with a special Molybdenum Bisulphite black coating to aid during piston break in and reducing friction during the work inside the cylinder.
