
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.
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.