KITACO High Compression Gasket Set for TZR50R/TZM50R/RZ50 (970-0055000)

High compression packing set Compatible models: TZR50R: 4EU | TZM50R: 4KJ | RZ50: 5FC This is a tuning part for stock engines that can easily increase power by using a thinner head gasket than stock and by using an ultra-lightweight piston pin (on some models). Two base packings are included, allowing you to change the port timing without modifying the cylinder.