Vertex smedet StempelkitRef : VER00776A / 1155486004

Forged piston kit by Vertex

Forged aluminum piston designed for 4T off-road engines, built to withstand the demands of enduro and motocross. Oversize +0.03 (letter D) and precise diameter for replacement after boring. Standard compression to maintain the original engine settings and limit necessary adjustments.

Design and materials

• Aluminum material ensuring a lightweight piston for a more responsive engine response
• Forged piston type providing better mechanical resistance against high loads
• Diameter Ø (mm) 77.970 for precise dimensional control during replacement

Usage and performance

• 4T time suitable for common four-stroke engines in enduro and motocross
• Standard piston compression to preserve engine behavior without modifying original settings

Fit and cut

• Oversize +0.03 indicated to match specific boring operations
• Letter oversize D allowing clear identification of the size during installation
• Bore diameter (mm) 78 to be checked before installation to ensure fit

The advantages

• Number of segments: Kit included for complete assembly
• Enduro, Cross universe suitable for demanding off-road use

Examples of compatible motorcycles

• TRIUMPH TF250-X (2024 - 2027)
• TRIUMPH tf 250 E (2026 - 2027)

Complete list of compatible motorcycles available in the dedicated section below