spambait I like the way the Brompton rests on its carrier and that the mudguard is protected by it, on the 'birdybike' group there is a 'heavily' modified birdy with a brompton carrier on it. Adding weight to a bike needs careful consideration with respect to usefulness and if the fold is affected then why have a folding bike.
The birdy rear carrier I have seen gains support from the seat stem and has supports in front or behind the elsatomer, I prefer the Brompton style. This is modification I am currently thinking about, it would have to be light and with this I'm not sure about the casters/wheels or if 'skids' would do and/or use the alternative fold in the air technique. It could even be better if the mudguard was also incorporated into it. Sorry for getting of the original theme of this thread.
Edd