To get a rough idea if the frame fits you, straddle the bike. With feet flat on the ground lift the bike up snug against your crotch. Ideally you should then be able to get one or two inches of air under the each tire.
If you raise the saddle until your leg is straight at 6:00, then you have gone too far.
BTW: The Motobecane should night and day ride quality improvement over your Mulktitrack. Nice bike.
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I.C.
Last edited by Insidious C.; 03-09-21 at 03:44 PM.