Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason Gives the rider a choice of using standard gas with stock compression, or race gas with a higher compression. Specifically designed for the pro, semi-pro and amateur rider Freshens up their engine prior to a race or during mid-season Kits do not include valve stem seals, rubber part, shims or other fiber gaskets. Marca ATHENA Referencia del fabricante P400485600116 Material Goma Nombre de producto Kit juntas Tipo Parte alta Tipo de motor 2 Tiempos Unidades Kit