18-21 for Harley Softail Heritage Classic S&S CYCLE Camshaft 540C Chain Drive M8 33 holes per square inch

33 holes per square inch and 40% open area

Flat lock stitched seams for added seam strength and comfort

but support is what keeps them at the top

heavy die-cast zinc and hand-tied with genuine leather straps

18-21 for Harley Softail Heritage Classic S&S CYCLE Camshaft 540C Chain Drive M8 33 holes per square inchManufacturer: S & S Cycle MPN: 310 1118A Title: 540 Camshaft Kit Size: Option: 540C Chain Drive M8 Color: Designed to add even more torque to your big bore M8, for those that keep the revs below 6000 rpm Kits include all required bearings, o rings, and hardware Gear drive cams provide improved valve timing accuracy Gear drive kits include drive gears Made in the USA DISCLAIMER: Not legal for sale or use in California on any pollution controlled motor