If the BB7s don't work out, I have some used Tektro IOs, also have 8-Speed EF50 shifters and 160mm rotors all in a box ready to go to 2nd life in the fall. They need cleaning and new pads (current pads have oil on them). I upgraded a friends bike a few months ago and these are free if you want to pick up in Clark. I have adapters for all sizes too.