Athena Forged Piston Kit for 4-Stroke 250cc

Upgrade your motorcycle's engine performance and durability with the Athena Forged Piston Kit 250cc. Engineered for demanding 4-stroke applications, this kit provides superior strength and a precise fit, ensuring reliable power delivery for your ride.

Description

Specifically designed for high-performance 4-stroke engines, this Athena Forged Piston Kit utilizes high-grade 2618 silicon aluminum, renowned for its exceptional strength and resistance to extreme temperatures and pressures. A crucial 3% copper additive further enhances heat dissipation, vital for sustained high-RPM operation and engine longevity. While Athena also produces 2-stroke pistons from 4032 silicon, this particular kit is tailored for 4-stroke powerplants.

The precision forging process creates an incredibly dense and uniform grain structure, resulting in a piston that is significantly stronger and lighter than conventional cast alternatives. This advanced tooling ensures the lightest possible product, contributing to improved throttle response, reduced reciprocating mass, and a more efficient engine. Each kit comes complete with an antiwear coated piston, high-quality steel rings, a durable piston pin, and secure circlips, providing everything needed for a comprehensive engine rebuild or upgrade. The meticulous manufacturing guarantees a perfect fit for a 76.97 mm bore with a 13.5:1 compression ratio, specifically for 250 cc 4-stroke engines, delivering the reliability and performance that enthusiasts demand.

Features & Highlights

• High-Strength Forged Construction: Precision-forged from 2618 silicon aluminum, ensuring exceptional durability and resistance to extreme engine conditions for your 4-stroke 250cc engine.
• Enhanced Heat Resistance: Incorporates 3% copper for superior heat dissipation, crucial for maintaining performance and engine integrity during aggressive riding.
• Optimized Lightweight Design: Advanced forging tooling results in the lightest possible piston, reducing reciprocating mass for improved throttle response and overall engine efficiency.
• Complete Rebuild Kit: Includes an antiwear coated piston, high-quality steel rings, a robust piston pin, and secure circlips, providing all essential components for a hassle-free engine refresh.
• Antiwear Coated Piston: Features a specialized coating to minimize friction, reduce wear, and extend the lifespan of your engine components.
• Precision Fitment: Available in exact sizing, such as Standard Size B with a 76.97 mm diameter, ensuring a perfect, factory-like fit for your specific 4-stroke 250cc application.

Technical Specifications

• Style: Forged Replica
• Units: Kit
• Engine Type: 4-Stroke
• Displacement: 250 cc
• Piston Diameter: 76.97 mm
• Piston Size: Standard Size B
• Piston Material: Forged Aluminum
• Compression Ratio: 13.5:1
• Ring Material: Steel, Cast
• Vendor Part Number: S5F07700005B