Rimstock were the suppliers of the series2/early series 3 multi spoke in the picture posted by Alistair. My favourite Aero wheel. That is why I went to Rimstock for the S4.
The GTN is set up with 225 section tyres all round. Newer Aero's are 245 rear and 225 front on the same wheel width. I think a good solution is to go half inch narrower wheel on the front if running 19's as the 225 tyre is not then being stretched.
