+.020in. Flat Top Pistons with 9.0:1 Compression Ratio. Fits Sportster 1986up with 1200cc Engine & Sportster 1986-1987 with 1100cc Engine.

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$325.00 RRP

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Features & Benefits:-

* Bore = 3.518in.

* Stroke = 3.812in.

* Hypereutectic Alloy is a cast 16% silicon content material.

* Perfect for air cooled engines.

* Low thermal expansion rate = tighter piston-to-cylinder clearance.

* Complete kit includes: two pistons, rings, wrist pins and clips.

* Replaces OEM # 22220-88A

Tech Tips:-

* 9.0:1 Compression Ratio with 69cc Head Chamber Volume.

* Follow Ring Eng Gap & Piston to Cylinder Clearances as per the supplied Manufacturers Instructions.