Upgrade your engine's performance with the Wiseco High-Performance Piston Kit. Forged from high-silicon aluminum alloy, this kit delivers maximum strength and dependability for both trail and racing applications. Experience enhanced durability, longevity, and increased horsepower with this innovative piston kit. Description The Wiseco High-Performance Piston Kit is engineered to provide maximum power and torque. Featuring forged pistons, rings, wrist pins, and circlips, this kit is designed for high-performance engines. The high-tech piston design offers maximum compression ratios and ultra-stiff strutted forgings. Titanium nitride-coated rings contribute to sustained power output. Each 49cc piston is E-Coated on the crown, ring grooves, and pin bore for maximum wear resistance and protection against micro-welding, galling, and detonation. The GP Series design features less machining on the outside, improving bore seal and increasing compression. Boost ports are removed to provide a more predictable powerband and increased top-end pull. This Wiseco piston kit is ideal for enthusiasts and professionals seeking a reliable and powerful upgrade. Features & highlights Forged from high-silicon aluminum alloy for superior strength and reliability. Innovative design maximizes horsepower and torque. E-Coating provides maximum wear resistance and protects against engine damage. High-tech design delivers maximum compression ratios for increased power. Titanium nitride-coated rings ensure sustained power output. GP Series design enhances bore seal for increased compression. Optimized for a predictable powerband and improved top-end performance. Technical specifications Brand: WISECO Product Name: Piston Kit Vendor Part Number: 653M04200 Engine Type: 2-Stroke Displacement: 49 cc Bore Size: 42.00 mm Bore - Oversize: +2.00 mm Piston Diameter: 41.96 mm Stroke Length: 39.20 mm Compression Ratio: Stock Piston Material: Forged, 4032 Aluminum Alloy Skirt Coating: Non-Coated Units: Kit Important to know Cylinder sleeves must be purchased separately. Service intervals may be increased with Racer's Choice pistons over conventional Wiseco pistons and are intended for expert racers and tuners only.