FOR 2017-2020 M-EIGHT (114"-117")

4.080" BORE X 4.5" STROKE, 118" cu. in., 11.3:1 compression

• Feature ArmorX^™ piston coating for superior protection in extreme conditions and reduced wear
• ArmorFit^™ skirt coating auto-adjusts to the cylinder wall so there's no need to measure clearance; provides smooth, quiet, trouble-free operation
• Dome design for improved flame travel to maximize air/fuel burn efficiency
• High compression for added power
• Superfinish piston pin reduces friction and improves scuff resistance
• Enhanced pin oiling for improved lubrication and reduced friction
• Augmented ring land details improve ring seal and function
• Dedicated rings for precise fit, improved compression and oil control
• Fit OEM and Screamin' Eagle cylinder heads
• Kit includes two pistons, rings, piston pins and circlips
• Made in the U.S.A