@ 5'9" you should be plenty tall for a firebolt. All the seat height and other specs are easily googled... Myself i have decided not to buy another bike unless i can spend the better part of a day or at least a couple hours riding it. Try and find one @ a dealer or maybe you can befriend the seller even. and just take a bolt out and seee how it suits you. and do some shopping, finding a well cared for bike is very important, but there are also some super cheap buells if you dont mind fixing up a few odds and ends.