Yamaha WR 125 [VERTEX] – Top End Piston Set (Race Forged Pistons)

VERTEX top end piston set for Yamaha WR 125

The VERTEX Top End piston set is specially designed for the 2-stroke engine of the Yamaha WR 125. It includes a race forged piston and matching piston rings and is designed for a bore size of 54.00 mm. The standard piston size A with a diameter of 53.93 mm ensures a precise fit and optimal performance in the 125 cc displacement segment.

Technical features

• Piston material: Forged aluminum alloy
• Piston skirt coating: Molybdenum disulfide for reduced friction
• Piston rings: Cast steel with nitride coating
• Engine type: 2-stroke
• Bore size: 54.00mm
• Piston diameter: 53.93mm (standard size A)
• Scope of delivery: Complete top end kit with pistons and rings

Product description

The VERTEX piston set is intended for use in the upper part of the engine (top end) and helps restore or improve the engine performance of the Yamaha WR 125. The use of a forged aluminum piston increases strength and resistance to thermal and mechanical stresses. The special molybdenum disulfide coating on the piston skirt helps minimize friction and wear, extending piston life.

The cast steel piston rings are provided with a nitride coating, which ensures improved sealing properties and high wear resistance. This set is designed as a complete kit and contains all the necessary components for replacing the top end of the engine.

The precise coordination of the dimensions ensures optimal fit and compatibility with the Yamaha WR 125 2-stroke engine. The product is part of the ENGINE GROUP and is listed under the product name “PISTON + RING KITS”.