Yeah am at manchester uni, where abouts are you? The bike is erm... i cant even remember which frame it is, its still at home at the moment. Its a long wheelbase 12in aluminium thing; very gussetted and braced. A friend runs a bike shop and got it knocked down because it wasnt painted. Will a disk on the back cause the spokes to flex too much? Perhaps because the XC bike and wheelset is so light, but the minis do lock up incredibly well, even when compared with much bigger brakes i've tried. Didnt experience any flexing mucking about hopping gaps. Never had much luck with the HS33s when i rode them, perfectly set up with new (broken in) pads i was never impressed with the locking power and ofc modulation was shite but i could easily stick one on the back. I hate the wear rate of the decent pads... Maybe i could re-lace the back with a beefier rim, what would you recommend? Also, which tyres should i run? I've got a few pairs of 2.1 hutchinsons (was considering for the front) or some crap old Tioga DH 2.35. Maybe a Maxxis hi-roller dual ply 2.5 for the back? I've noticed quite a few riders using suspension over rigids, i have access to a pair of DMR cromo rigids or Magura Phaons; which pair should i run sensibly?