I have over 100k on the C14's, besides originals, 4 sets of PR2's and about 8 sets of PR3's, ordering another set this week. The PR2's are great, just seem happier with the PR3's. Either way, it feels really nice with new tires. Have looked hard at all tires that are available but have not found any reasoning to switch to something else yet. Just about everyone i ride with have switched to PR3's, several C14's and several 1000 sport bikes and all are really happy they did.