Manufacturer Ref: VTK23928B-4 — VERTEX Complete Top-End Kit (cast piston)

Designed for engine preparation and repairs on motocross machines, this Vertex top-end kit gathers the essential components for a clean and quick piston replacement. Made of aluminum, the cast piston presented here complies with an oversize B with a nominal bore diameter of 54.00 mm and a piston diameter of 53.95 mm. Compression: standard.

The kit helps to minimize back-and-forth trips and optimize workshop time: everything needed to restore the top end is included, eliminating the need to search for individual parts.

• Included: piston, rings, piston pin, circlips, top-end gaskets, needle bearing (for 2T applications).
• Note: some kits for 4T engines also include the timing chain depending on the application.

• Main Features:
• Material: aluminum
• Bore diameter: 54.00 mm
• Piston diameter: Ø 53.95 mm
• Compression: standard
• Oversize letter: B

Recommended main applications: KTM 125 SX (2025), Husqvarna TC 125 (2025), GASGAS MC 125 (2025). Ideal for motocross riders looking for a complete wear part, ready to be mounted during a top-end service.