2024-2026 Vertex top end kit SX/TC/MC 50ccVertex KTM 50 SX Standard Top End Rebuild Kits include everything needed to replace your piston, top end gaskets, and small end bearing. Included in each kit: Complete Vertex piston kit single ring Vertex small end bearing Vertex top end gaskets Very rarely, the Vertex gaskets or small end bearing may be substituted for other brands of equal or better quality than OEM Vertex have been making race pistons for all small capacity race engines, both 2 and