Originally Posted by JohnDThompson

The Edco has been out of production for many years, so sourcing one might be a problem. There are other threadless options as well. YST makes an inexpensive threadless cartridge. Mavic also made one, which required chamfering the ends of the shell. The Mavic is also out of production. Velo-Orange offers a threadless cartridge as well, and is still in production. Costs more than the YST, but probably better quality.



Another option, if the shell is currently English or metric thread, is to ream and tap the shell for Italian threads and use any Italian thread bottom bracket. Some shops may still have the proper tools from Bicycle Research.