+.040in. Flat Top Pistons with 9.0:1 Compression Ratio. Fits Sportster 1986-2021 with 1200cc Engine & Sportster 1986-1987 with 1100cc Engine. - Keith Black Pistons Engines * This tool must be

* This tool must be used with the earlier JIMS wheel bearing Installer & Remover Tool # JM-1042

Rain sock AN-18-062

* End oiling

For easy install purchase Switch Wiring extension # NMZ-NHCX-CB14 & Throttle by Wire extension # NMZ-NTBW-J04

For a complete rebuild of one disc the following is required:9x GAL-55995VA1 E-Clips9x GAL-55996VD1 Wave Washers9x GAL-55997P2 Rotor ButtonsAND18x GAL-55996VG1 Thin Flat WashersOR9x GAL-55996VG1 Thin Flat Washers 9x & GAL-55996VH1 Thick Flat WashersTalk to your sales rep about what is required for your application (see notes tab and refer part number specific instruction sheet)

+.040in. Flat Top Pistons with 9.0:1 Compression Ratio. Fits Sportster 1986-2021 with 1200cc Engine & Sportster 1986-1987 with 1100cc Engine. - Keith Black Pistons Engines * This tool must beFeatures & Benefits: * Bore = 3. 538" * 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: * 9. 0: 1 Compression Ratio with 69cc Head Chamber Volume. * Follow Ring End Gap & Piston to Cylinder Clearances as per the supplied Manufac turers