JE Pistons 291517S FSR Pro Series Piston Kit Bore Compression - 76.80mm 14.2 1

The JE Pistons 291517S is a high-performance FSR Pro Series forged piston kit designed for professional-level powersports applications. Machined from 2618-T6 high-tensile forged aluminum, this piston delivers exceptional strength and durability in extreme racing conditions.

Key Features:

• Standard bore size of 76.80mm with 14.2:1 compression ratio
• Pro Series construction with internal and external bracing for maximum strength
• Dedicated embossed forgings for optimized weight reduction
• Internal milling of struts with dedicated accumulator groove and forged side relief
• Dome/dish features smooth flowing radii requiring no deburring or preparation
• Specifically engineered for extreme applications including professional competition
• Manufactured in the USA with JE's 70+ years of racing experience

JE Pistons designs, forges, and machines all pistons in-house, ensuring complete control over every aspect of the manufacturing process. This FSR Pro Series piston kit represents the pinnacle of powersports piston technology, trusted by professional racers worldwide.