What is the current record for most seasons for a former champion without winning a title?

Nicky Hayden ran 9 full seasons without backing up his title, which is quite a large amount. Assuming Rossi doesn't win this year he'll match 9, going for double digits next season. Has any other rider exceeded that?
Submitted October 13, 2018 at 09:53PM by oh84s https://www.reddit.com/r/motogp/comments/9nx5yh/what_is_the_current_record_for_most_seasons_for_a/?utm_source=ifttt