I agree with Po, if you have the room a full size bike is OK but we didn't on our 32 ft sailboat and we don't really on our Monk 36 so we really like our folding ones! They are Montague DX's and fold out to be full size bikes which we wanted. We store them in zipper bags and we have had them about 6 years now. They ride like any regular bike and they have held up very well in the marine environment. We have used then extensively and would buy them again. And Po is right again when he says they fit in the dingy better! David Monk 36 "Significant Other"