I've been using Avon Roadriders (AM26) on my airheads for a few tire cycles now and really like them. They wear at least as well as the Metzelers, Continentals, and Bridgestone I've used previously, but I prefer the tire profile and handling characteristics of the Avon quite a bit. I'm getting ready to replace the tires on the K75, so I'll be be trying the Avons on it as well.