Vertex Complete Top End Kit - Casted Piston Cylinder kitRef : VER00336A / 1096679001

VERTEX Complete Top-End Kit - Cast Piston (Ref. VTK24370A)

Designed for motocross riders and workshops looking to restore a top-end without chasing parts, this VERTEX kit brings together the essentials for a meticulous renovation. It includes a cast aluminum piston, rings, and all necessary assembly components: saving time on reassembly and starting fresh, ready for the track.

• Kit contents: piston, rings, piston pin, circlips, top-end gaskets.
• For 2T: needle cage provided for the crank pin bearing.
• For 4T: 4T kits delivered with timing chain.

• Material: aluminum.
• Piston compression: Standard.
• Diameters: bore 47.50 mm — piston Ø 47.450 mm (oversize letter: A).

Ideal for the relevant displacements, this kit is aimed at demanding users who maintain their YZ 85 and other equivalent motocross machines. Before installation, check the piston/cylinder clearance and break in according to the manufacturer's recommendations. Compatible with several YAMAHA YZ 85 models (notably 2025-2026 LW Big Wheels and standard versions), verify the reference and year of your machine before ordering.