Wiseco Pistons 497M04900 Forged Piston Kit Standard Bore - 2-Stroke 49mm

The Wiseco 497M04900 is a high-performance forged piston kit built for the Suzuki RM80 (1983–1985) 2-stroke dirt bike engine. Featuring a standard bore of 49.00 mm, this piston kit is engineered, forged, and machined in the USA at Wiseco's facility in Mentor, OH — backed by a legacy of 2-stroke performance manufacturing dating back to 1941.

Key Features:

• Forged from high-silicon, low-expansion aluminum alloy for superior strength, reduced weight, improved heat transfer, and extended service life
• Reinforced dome with waffle design for improved heat transfer and added structural strength
• CNC computerized high-speed Diamond Turning Centers hold exact tolerances with no size variation
• Closer wrist pin boss spacing eliminates wrist pin flex for more precise, reliable operation
• Dedicated forging design with additional lightening operations for an optimized strength-to-weight ratio
• Innovative piston skirt geometry designed to maximize horsepower and torque output
• Kit includes high-quality piston ring(s), wrist pin, and circlips — everything needed for installation

Wiseco piston kits are designed and built for each specific 2-stroke powersports engine, making the 497M04900 a precision-fit replacement that delivers the durability and performance the Wiseco name is known for. Wrist pin code: 1929CD.