JE Pistons 292760S FSR Pro Series Piston Kit Compression - 77mm 14.0 1

The JE Pistons 292760S is a high-performance FSR (Forged Side Relief) Pro Series piston kit engineered for demanding motocross and off-road racing applications. This complete piston kit features a 77.00mm standard bore with a 14.0:1 compression ratio, specifically designed for Kawasaki KX250F motorcycles.

Construction and Materials:

• Forged from 2618-T6 high tensile aluminum alloy for superior strength and durability in extreme conditions
• Purpose-built forging design reduces overall piston weight without sacrificing structural integrity
• FSR (Forged Side Relief) skirt style optimizes piston movement and reduces friction
• Precision CNC-machined ring grooves ensure perfect ring seal and performance

Performance Features:

• Smooth radius dome design with optimized flame travel characteristics
• Radiused valve reliefs for proper valve clearance
• Machined oil drain-back holes engineered for specific oil control requirements
• Factory-honed pin bores for precise fitment
• Two-ring design promotes quick revving and improved throttle response

Complete Kit Includes:

• One forged piston
• High-quality wrist pin and wire locks
• JE Pro Seal premium piston rings
• Ready for installation with no deburring or preparation required

Engineered and manufactured 100% in the USA, JE Pro Series pistons deliver the performance trusted by professional race teams including Pro Circuit and JGRMX, while providing the durability required by serious enthusiasts. Each piston is designed specifically for its intended application with input from professional-level teams and racers.