Wiseco Pistons 4829M07800 High-Performance Forged Piston Kit Bore Compression - 78mm 12.9 1

The Wiseco 4829M07800 is a high-performance forged piston kit designed for 249cc dirt bikes. This standard bore piston features a 78.00mm bore size with a 12.9:1 compression ratio, delivering improved power and throttle response for demanding off-road applications.

Key Features:

• Forged from high-silicon, low-expansion aluminum alloy for superior strength, reduced weight, improved heat transfer, and longer life
• ArmorGlide skirt coating for reduced friction and improved durability
• Diamond-turned finish from CNC computer-controlled turning centers guarantees perfect finish with no size variation
• 52.2mm stroke design optimized for 249cc displacement
• Race-ready dome finish with smooth edges for improved combustion flow
• Forged in the USA using aerospace-grade aluminum

Complete Kit Includes:

• Forged piston (single piston)
• Ring set (.9mm x 1.5mm)
• Wrist pin (16mm x 41.5mm non-chromed) and round wire pin locks (circlips)

The forging process compresses the aluminum's molecules, increasing material density and aligning grain flow for exceptional resistance to impact and fatigue. This results in a piston that withstands the extreme demands of high-performance racing and recreational riding while maintaining tight tolerances for quiet operation and maximum durability.

Note: Wiseco rings, circlips, and wrist pins are specifically engineered to work with Wiseco pistons and are not interchangeable with other brands.