was kind enough to use English sized pip pins.
They are 1/4" X 2". He
then has the end of the handle machined smaller.
I purchased spare pip pins from Reid
Tool Supply. When I tried to machine
the handle to the same size at the original, the pin failed.
I had to keep them 1/8 larger. This
meant that I had to increase the size of the hole in the down tube by 1/8"
(only the part that the handle fits).
I found a supplier for 14mm tubing used for the weak links in the down tubes, Molone Specialty Inc. They have both Steel and Stainless steel tubing that is 14mm with a 2mm wall thickness. I purchased 6 meters of the steel tubing for $42 ($7 per meter). The stainless steel tubing was $40 per meter with a 6 meter minimum. The inserts are 145mm long. The actual size of the tubing is 13.89mm. My down tubes have the 14mm hole. Felix said some of the down tubes have a 13.9mm hole. He said to ream the hole to 14mm if the link is too tight. It's a lot cheaper than turning down the link in a lathe. My links cost me about $1.50 each when I include tax and shipping. Felix said it did not matter if they were steel or stainless steel.