Can I put racing fuel in my Harley-Davidson?

Can I put racing fuel in my Harley-Davidson?

Harley-Davidson recommends that riders should use 92 octane fuel or higher. Most Harley motorcycles can use 110 octane fuel. However, if you put 110 octane in your Harley, it will not run faster, and you can damage it if the motorcycle is not properly tuned to run 110 octane fuel.