Wiseco Pistons 515M06850 Forged Piston Kit for Yamaha Tri-Z - 250

The Wiseco 515M06850 is a high-performance forged piston kit designed for the Yamaha Tri-Z 250 (1983). Wiseco pistons are forged from high-silicon, low-expansion aluminum alloy that delivers superior strength, reduced weight, improved heat transfer, and extended service life compared to cast pistons.

Key Features:

• Forged from high-silicon aluminum for maximum strength and durability
• Diamond-turned finish from CNC computer-controlled machining ensures perfect surface finish with zero size variation
• Compatible with all cylinder bore compositions including cast iron, chrome, Nikasil, and boron composite
• Low-expansion alloy minimizes piston-to-wall clearance changes during operation
• Enhanced heat dissipation properties for reliable performance under demanding conditions
• Precision-engineered using state-of-the-art computerized manufacturing

What's Included:

• Forged piston
• Piston rings
• Wrist pin
• Circlips

Wiseco's advanced manufacturing techniques and rigorous quality control make their pistons the choice of professional racers and recreational riders alike. Available in various oversizes, Wiseco pistons can extend cylinder life and enable rebuilding of sleeved cylinders.