Wiseco 4694M09700 Forged Piston Kit High Compression - 97.00mm 13.5 1

The Wiseco 4694M09700 is a high-performance forged piston kit featuring a 97.00mm bore diameter (2.00mm oversize) and a 13.5:1 compression ratio, designed for competitive 4-stroke dirt bike engines. Wiseco's forged 4-stroke pistons are engineered for each specific engine application and built to the tightest tolerances for the ultimate combination of performance and strength.

Key Features:

• Forged high-silicon, low-expansion aluminum construction — offers superior strength, reduced weight, improved heat transfer, and longer life
• Engineered, forged, and machined in the USA in Mentor, OH
• Improved tensile strength of forged material optimizes strength and service life
• Dedicated forgings allow for an optimized strength-to-weight ratio
• 2.00mm oversize bore at 97.00mm — ideal for cylinder overbore rebuilds on worn cast-iron lined cylinders
• 13.5:1 high compression ratio for maximum power output
• Kit includes high-quality piston rings, wrist pin, and circlips
• Diamond-turned finish from CNC computer-controlled turning centers guarantees a perfect finish with no size variation

Kit Includes: Forged piston, piston rings, wrist pin, and circlips.

Note: This is an oversize piston (97.00mm / +2.00mm). Installation requires professional cylinder boring or sleeving to match the oversize bore specification.