I’ve had these on the Busa for probably ten years or more. I swapped the OEMs out early so these must have over 50,000 miles on them. They’re still a PITA to install and remove and aren’t gouged or cut. When should they be replaced I wonder? For the not too high price of $60 I could get a set and have them replaced when I have the chain and sprockets replaced. But if they’re still good…Anyone else ever replace HD Cush rubbers like these?