Andy ,
bitd my Vector used Tuffs most of the time , I did though put my race wheels in it once & raced it at MK . If it helps the hubs were the billet (not later cast ?) GT hubs with allen bolt collars & hollow axles , similar to the one's Darren was selling a few days ago .
Shown below in both guises :
I'll measure my chainstay width tomorrow.
Matt