I have 2 Moby 50v's and a 103. If I had to get rid of one it would be a Moby because I would still have both. If 2 mopeds had to go well it would be the Mobys. No fucking way I'm getting rid of my 103. there has been too much work in it for me to ever let it go.
Ok check this. Moby/Pug are almost the same.
~Moby has the clutch/vario weight on the end of the crank (looks good) but a clutched pulley can pretty much take all that weight off of the crank.
~Pug has the mass of the vario weight closer to the case so maybe a little less strain on the end of the crank (also clutched pulley avail.)
~Pug has the stupid subframe surrounding the motor which makes carb options a little harder to fit.
~Moby pretty much has open space for the carb, but bigger carbs are still a bitch because the AV7 is closer to the frame work and in variation most carbs will hit the frame.
~Moby has those stupid rubber motor mounts and the motor likes to vibrate the shit out of everything.
~Pug has solid mount variation (no rubber shit)
I love the way my Moby can bank on a curve and lean low, but the Pug rides better and smoother. I would vote for a 103 all day long between the two.