Just added, Tektro R556 calipers, in white, off ebay



They're definitely an upgrade. I've also got a headset to stick on the bike, but the headtube is too long to use my Park headset press on, I need to get a long threaded rod and some washers for this one. May be a few weeks, it's not pressing (hahaha)

Pics eventual-like.

Pretty soon, the only original part on mine above the wheels will be the seatpost clamp, and I many change that out just to be complete about it.