This tread has good timing for me. I will be starting assembling my Dia Compe center pull 510 set. Can you folks direct me to the "right" cable lengths and pad / holder parts and sources for the parts? Thanks to all.

Also would add the early Trek 700 conversions I used Tektro 539's. 57 mm reach. And had adjustment to spare. Tektro makes parts to convert to nutted. 559's were much to long. Ymmv.

Search "Tektro R539 10mm nut" on eBay. Seller is bikedomeworks. $45.50 free shipping. They are already converted. The hardware for my conversions was mor than $20.