Accel Spark Plugs for for Harley-Davidson Shovelhead and Evolution Type:Copper Core/Nickel After plenty of development and

After plenty of development and testing time in the skunkworks

requires use of 130mm (5") width tire

This product is NOT designed for use with 21" and 23" wheels

and the finish can be selected to either match or contrast with your motorcycle

Accel Spark Plugs for for Harley-Davidson Shovelhead and Evolution Type:Copper Core/Nickel After plenty of development andAccel Spark Plugs for for Harley Davidson Shovelhead and Big Twin Evolution Keep your Harley firing on all cylinders with Accel spark plugs. Consistent, reliable spark Strong, reliable spark makes for smooth idling and dependable starts Sold as a set of two Choice of plug type Copper Most affordable, coolest running, and most affordable Patented U shaped ground electrode that produces a wide, hot spark to ignite standard or high compression engines