JE Pistons 262277 Forged Piston Kit 69mm Bore 13.5:1 Compression

The JE Pistons 262277 is a complete high-performance forged piston kit engineered for Honda CBR600RR motorcycles. This kit features a +2mm overbore design with a 69mm bore size, increasing displacement to 636cc, and delivers an aggressive 13.5:1 compression ratio for maximum power output in racing applications.

Key Specifications:

• Bore Size: 69mm (+2mm oversize)
• Compression Ratio: 13.5:1
• Displacement: 636cc
• Piston Weight: 143 grams
• Material: 2618 T6 high tensile forged aluminum
• Skirt Style: FSR (Forged Side Relief)

Complete Kit Includes:

• Forged pistons precision CNC-machined from state-of-the-art forgings
• Piston rings (Part Number XA6900)
• Wrist pins (Part Number 591-1650-14-TTC)
• Circlips (Part Number 591-040-MW)

Performance Features:

• Machined from premium 2618 T6 high tensile forged aluminum for exceptional strength and durability under extreme conditions
• Dome features smooth flowing radii requiring no deburring or preparation before installation
• Precision CNC machining maintains exacting tolerances for optimal performance
• FSR skirt design reduces friction and weight while maximizing strength
• Specifically engineered for professional competition and extreme racing applications

Proudly manufactured in the USA, JE Pistons brings over 70 years of racing experience to deliver pistons trusted by top engine builders worldwide in NASCAR, NHRA, AMA Supercross, and professional motorcycle racing.