Yamaha YZ 125 [VERTEX] – Piston Set (Cast Replica)

VERTEX piston set (cast replica) for Yamaha YZ 125

The VERTEX piston set is specially designed for the 2-stroke engine of the Yamaha YZ 125. It consists of a cast piston with a moly coating on the piston skirt, which ensures improved wear resistance. In addition to the piston, the set also contains the matching piston rings with nitride coating made of steel, which are designed for durability and optimal sealing.

Technical features

• Piston diameter: 53.96 mm (standard size D)
• Bore Size: 54.00mm
• Displacement: 125 cc
• Piston material: aluminum alloy, cast
• Coating piston skirt: Moly coating
• Piston rings: steel with nitride coating
• Compression ratio: standard
• Engine type: 2-stroke
• Scope of delivery: piston set (piston and rings)

The piston set is designed as a kit and enables a precise repair or replacement of the piston in the engine of the Yamaha YZ 125. The standard size D corresponds to the common tolerances for the bore of the cylinder and ensures an optimal fit.

Material and workmanship

The piston is made of a high-quality aluminum alloy that was manufactured using a casting process. This design offers a good combination of stability and weight. The moly coating on the piston skirt reduces friction in the cylinder barrel and helps protect the engine components. The piston rings are made of steel and have a nitride coating, which increases their wear resistance and ensures a reliable seal of the combustion chamber.

The piston set is designed for use in the 2-stroke engine of the Yamaha YZ 125 and meets the technical requirements of this model. It is part of the Engine Group and belongs to the Piston + Ring Kits product category.