Vertex Top End Piston Kit - 2009-2023 KTM 65 SX 65cc | VTK23430CD

The Vertex Top End Piston Kit (VTK23430CD) is a direct-fit replacement for the 2009–2023 KTM 65 SX, engineered to restore peak power and engine longevity. This kit is supplied in size CD, precision-matched to deliver tight tolerances, eliminate blow-by, and reduce oil consumption in your 65cc engine.

What's Included

• Piston (size CD)
• Piston rings
• Wrist pin
• Circlips

Key Features

• Size CD Piston — Precision-matched bore sizing for maximum power and minimal blow-by
• MoS2 Coated Skirts — Hi-tech molybdenum disulphide coating for faster break-in and extended piston life
• T-5 Heat Treatment — Hardening and tempering cycle for superior strength and durability under race conditions
• OEM-Quality Fitment — Drop-in replacement with no machining required
• Reduced Oil Consumption — Tight tolerances minimize blow-by for a cleaner, more efficient engine

Fitment

• KTM 65 SX: 2009–2023

Note: Verify your cylinder bore measurement corresponds to size CD before ordering. Consult your service manual for bore specifications.

Why Vertex?

Vertex Pistons are manufactured in Italy and trusted by professional race teams worldwide. Their precision engineering and premium materials make them a go-to choice for serious motocross mechanics who won't compromise on engine performance.