Markit wroteJimbo welcome back and good to hear you are still around. Last I heard you were coming to Bali ... finally.
Since you do know the place I wonder at your asking for something that will absolutely not be any good for getting around here. Unless you only want it for your own compound or you live on the only good street on Bali with sidewalks...?
In all my time here I have never, ever seen a mobility scooter. You might want to consider getting 4 guys to carry you around instead King Canute?
I have been to Bali countless times and always bring my mobility scooter with me and get around with no difficulty. I stay in the heart of Kuta, near the monument. It is a small collapsible light one. Travel Scoot, also have a Lugger Scooter, no probs with either.