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* Made from CNC machined Billet Aluminum
8" or oversize rotors by adding spacers between mount and radial caliper
Designed for original use on 1973-80 FXE with choke cable tab and ignition switch hole
don't let it's sleek and slender profile fool you
* Replaces OEM # 50700060
+.020in. Dome Top Pistons with 8.3:1 Compression Ratio. Fits Big Twin 1978-1984 with 1340cc Shovel Engine. Ready Made Front Brake Lines Chr * Made from CNC machinedFeatures & Benefits: * Bore = 3. 518" * Stroke = 4. 250" * 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 # 21992 80 Tech Tips: * 8. 3: 1 Compression Ratio with 117cc Head Chamber Volume. * Follow Ring End Gap & Piston to Cylinder Clearances as per the