Yamaha RD 350 [PROX] – piston kit for 2-stroke

Piston kit for Yamaha RD 350 – PROX

The piston kit from PROX has been specially developed for the 2-stroke engine of the Yamaha RD 350. It is made of high quality materials and is designed for a bore size of 66.50mm with an oversize of +2.50mm. The piston kit offers a precise fit and supports the performance of the engine with a displacement of 350 cc.

Technical characteristics

• Brand: PROX
• Engine type: 2-stroke engine
• Bore size: 66.50 mm (+2.50 mm oversize)
• Displacement: 350cc
• Piston material: Aluminum alloy, cast
• Coating of piston skirt: Moly coating
• Compression ratio: Default
• Number of pieces: Kit (piston + rings)

Product description

The piston set from PROX is a complete set that includes pistons and matching piston rings. The aluminum alloy ensures low weight and good thermal conductivity, while the moly coating on the piston skirt reduces wear and increases piston life. Due to the oversize of +2.50 mm, the kit is suitable for engines with correspondingly machined cylinder bores.

The compression ratio is standard, meaning no adjustments to the engine are required. The precise manufacturing ensures an optimal fit and contributes to the reliable function of the 2-stroke engine. The piston kit is part of the Engine Group and belongs to the Piston + Ring Kits product group.

This piston kit is suitable for replacing or overhauling the piston on the Yamaha RD 350 and supports the restoration of engine performance and operational safety.