Thanks Mike, I'll have a look at their vid.
Nearly all of our bikes have all purpose tires for the gravel and stone tracks we have around here. Getting on an off was something that bothered me especially as my daughter has problems with balance anyway.
Has always amazed me that someone who cannot stand on one leg (either leg) for more than a couple of seconds has no problem riding a bike.
A roller frame would be easier to make but I could sacrifice one bike and jack the rear up and fix the front which would probably be more stable and easier for her to get on and off.
Limited resources here and only online shopping of course
I do not think therefore I do not am.
cheers
Andy