Replaced head gasket for minor oil leaks, & replaced cam for thin spots in surface hardening at the same time.
Replaced rear tire once a year, front tire every three years.
Replaced seat upholstery in 1998.
Replaced chain & sprockets (original) in 2005.
Replaced rear wheel bearings in 2006.
Despite all of the negative comments that you may hear about the bike's weight/size, I absolutely love the power, handling,& comfort. I am only about 155 pounds & far from an expert rider (& 44 years old), but I can slide out of a corner at high speeds & still feel very much in control. For long distance, high speed off road touring this bike is fantastic.
I have had virtually no problem getting parts at reasonable prices.
The bike definitely has a learning curve to starting it, but once you get to know it, starting is a breeze - again, note my weight.
I love the bike-what more can I say - I hope it never blows up.