Std Flat Top Pistons with 9.1:1 Compression Ratio. Fits Sportster 1986-2003 with Big Bore 883cc to 1200cc Conversion. P01572606RPARB the Black Air Filter Service

the Black Air Filter Service Kit # KN-99-5050BK looks great

* Length = 24-3/8"

* Replaces OEM # 27244-95

we use 6061-T6 billet aluminum for maximum strength needed to provide lasting performance

Std Flat Top Pistons with 9.1:1 Compression Ratio. Fits Sportster 1986-2003 with Big Bore 883cc to 1200cc Conversion. P01572606RPARB the Black Air Filter ServiceFeatures & Benefits: * Bore = 3. 498" * Stroke = 3. 812" * 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. Tech Tips: * Piston is 0. 125" below deck to achieve 9. 1: 1 Compression. * Follow Ring End Gap & Piston to Cylinder Clearances as per the supplied Manufacturers