they are 1" diameter with a threaded 3/8"-16 shaft for the spring to sit over

Add some classic 60's styling to your oil in frame Triumph

• Compact dimensions: 4 1/4" long

making it perfect for bikes with taller handlebars or other customizations

Derby Cover - Chrome - 2004-2021 Harley-Davidson Sportster XL Brand_Dandlebars they are 1" diameter withCycle Standard offers high quality die cast aluminum Derby Covers in a variety of finishes to fit your specific model motorcycle. See Additional Information for fitment. Die cast construction with a domed design Includes mounting hardware Replaces Harley Davidson OEM# 34760 04