Wiseco 493M05150 2-Stroke Forged Piston Kit 51.50mm Honda CR80 1983

The Wiseco 493M05150 is a high-performance forged 2-stroke piston kit built for the 1983 Honda CR80. Featuring a 51.50mm bore diameter (1.5mm / +0.060" oversize), this piston is engineered to restore or exceed factory power output in worn or re-bored cylinders. Ring set 2028CD is included.

Key Features:

• Forged high-silicon aluminum alloy construction for superior strength, reduced weight, improved heat transfer, and extended service life
• 51.50mm bore diameter — 1.5mm oversize (+0.060") over the standard 50.00mm bore
• CNC diamond-turned finish for precise sizing with no variation, compatible with cast iron, chrome, Nikasil, and boron composite cylinder bores
• Dedicated 2-stroke forging with optimized piston skirt profile for maximum horsepower, torque, and ring seal
• Engineered, forged, and machined in the USA at Wiseco's facility in Mentor, OH
• Kit includes: one forged piston, 2028CD ring set, wrist pin circlips

This is an oversize piston intended for use with a bored or re-sleeved cylinder. Chrome, Nikasil, and boron composite cylinders must be re-sleeved to accept oversize pistons. Wiseco's 2-stroke piston program dates back to 1941, making them one of the most trusted names in performance piston manufacturing.