Wiseco SK1190 Pro-Lite Forged Piston Kit Bore - 2-Stroke 62.50mm

The Wiseco SK1190 Pro-Lite 2-Stroke Piston Kit features a 62.50 mm bore and is engineered for all-purpose 2-stroke powersports performance. Engineered, forged, and machined in the USA at Wiseco's Mentor, OH facility, this Pro-Lite kit delivers the combination of reliability, strength, and throttle response that Wiseco has built its reputation on since 1941.

Key Features:

• Pro-Lite forged construction — dedicated forging design optimizes the strength-to-weight ratio for maximum performance
• 62.50 mm bore — precision-machined to tight tolerances for optimal fitment and seal
• Extra lightening operations for enhanced throttle response and reduced reciprocating mass
• Improved tensile strength of forged aluminum material over cast alternatives, extending service life under high-stress conditions
• Designed specifically for 2-stroke powersports engines — not a generic off-the-shelf part
• Kit includes piston ring(s), wrist pin(s), and circlips — everything needed for a complete top-end refresh
• Made in the USA — fully in-house forging, machining, and quality control in Mentor, OH

Unlike cast pistons, Wiseco's forged Pro-Lite pistons feature a condensed, aligned grain structure that produces superior mechanical properties, greater resistance to impact, and improved fatigue life. This makes them well-suited for the demanding conditions of snowmobile and powersports 2-stroke engines where reliability and consistent power delivery are essential. The Pro-Lite line is the piston that started Wiseco's legacy and remains the go-to choice for all-purpose 2-stroke riders looking for a high-quality OEM replacement or performance upgrade.