Gazelle Trim Trophy, EG Bates Track Bike, HR Bates Cantiflex bike, Nigel Dean fixed gear conversion, Raleigh Royal, Falcon Westminster.
You know there's really a wider range of good tyres in the larger size, right? Not wider, I grant you. There's no issue with the fold, but I guess it could lower the BB height a little, though I have read that with the fatter tyres on, there's no appreciable difference in diameter. If that's really the case, I might go for 349s on my Mini Moulton, where skinnier tyres would suit the intended purpose.
Wanted - SRAM/Sachs Elan 12 shifter and clickstick
I'm curious as to whether anyone has done this in order to get a wider choice of tyre, particularly in terms of larger tyres?
I don't know if it's possible. But if your reason for doing so, is the wider choice of tyres, I think you might reconsider.
As I have now Kojaks on a Brompton, but for the winterdays I might change to Marathon, or maybe Marathon Plus. Although the original Brompton tyres, or the Panaracer, or Stelvio, still for sale at sjscycles or the el cheapo's from raleigh etc.
So you make me curious, what tyres do you want on your Brompton?
BTW did you try the Bromptonforum on Yahoo?
"A trip on my Brommie, -or is it the Airnimal Joey?- makes me smile. . ."