i have a set of the m28s, so i cant comment on the r28sl's really. BUT i can tell you that if you ever have a problem with the neuvations, you can get a hold of john basically any time of day and expect an email back in a couple minutes. the casette body in mine went bad and i emailed him on a thursday, friday when the mail came i had a new one. he didnt ask how long i had them, if i crashed them ,or anything. im really happy with them as a second set of wheels.ru1-2cycle said:Thanks! I am debating, but from what I have seeing, the FSA's not only look better, are only a few grams heavier, can take a POUNDING and still remain TRUE!