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

VERTEX piston set (cast replica) for Yamaha YZ 125

The VERTEX piston set (cast replica) is specially designed for the 2-stroke engine of the Yamaha YZ 125. This set includes a piston and matching piston rings manufactured in standard size A with a bore size of 54.00 mm. The piston diameter is 53.93 mm, suitable for the displacement of 125 cc.

Technical features

• Brand: VERTEX
• Version: Replica cast pistons
• Piston material: Aluminum alloy, cast
• Piston skirt coating: Moly coating
• Piston ring material: Steel with nitride coating
• Bore size: 54.00mm
• Piston size: Standard size A
• Compression ratio: Default
• Engine type: 2-stroke
• Number of pieces: Complete set

Product description

The piston set consists of a cast piston that has a molybdenum coating on the piston skirt. This coating reduces wear and improves the sliding properties in the cylinder. The piston rings are made of steel and have a nitride coating, which ensures increased hardness and durability.

The use of aluminum alloy as the material for the piston ensures good thermal conductivity and high stability combined with low weight. The piston set is matched to the original compression ratio and therefore offers reliable performance in standard operation.

This piston set kit is intended for use in the Yamaha YZ 125 2-stroke engine and is suitable for maintenance or repair work where replacement of the piston and piston rings is required. The precise manufacturing and high-quality coating contribute to the optimal function and service life of the engine.