Just did a complete front brake job on mine and the rotor minimum is 23mm. I know this because mine were 22mm <img src="/forums/images/graemlins/mad.gif" alt="" /> so I had to buy new ones. Luckily they weren't too expensive (~$35 apiece). Apparently though there were 2 different types and the other ones were like $85 each and no longer available. I did the whole job, including repacking the wheel bearings (what a mess but recommended if they haven't been done in a while) in about 8 hours. But I'm the slowest mechanic there ever was <img src="/forums/images/graemlins/smile.gif" alt="" />.