Wiseco 514M04900 Piston Kit Oversize - 49.00mm 2-Stroke 1.00mm

The Wiseco 514M04900 is a high-performance forged 2-stroke piston kit designed for off-road applications. This kit features a 49.00mm bore diameter, representing a +1.00mm oversize over the standard bore. It is engineered for demanding dirt and trail riding conditions where stock pistons fall short.

Kit Includes:

• Forged high-silicon aluminum alloy piston
• Piston rings (Wiseco ringset 1929CD)
• Two CW14 circlips
• Note: Wrist pin (S517) is NOT included with this kit

Key Features:

• Forged construction — high-silicon, low-expansion aluminum alloy delivers superior strength, reduced weight, and improved heat transfer compared to cast alternatives
• Precision CNC-finished skirt — diamond-turned on computer-controlled lathes for consistent sizing and optimal cylinder wall contact
• Compatible with multiple bore compositions — suitable for cast iron, chrome, Nikasil, and boron composite cylinder bores
• Optimized dome profile — innovative forging geometry maximizes combustion efficiency for peak horsepower and torque
• Oversize application — cylinder sleeving or replating is required when installing this oversize piston; consult a qualified machinist before installation

Wiseco is the only aftermarket piston manufacturer in the United States that produces all pistons exclusively using the forging process, ensuring consistent grain structure, superior mechanical properties, and resistance to impact failure. Each piston is engineered to tight tolerances for quiet operation and extended service intervals.