Originally Posted by
Portlandjim
Yes, I made the bottom bracket. The spindle is made from 17-4 PH high strength stailess steel. The cups are in 303 stainless. I made the cotter pins and nuts out of 17-4 PH also. The lock ring is one I made from titanium. Bearings are Enduro. Jim Merz
I wonder how many bikes there are out there with cottered steel cranks and a titanium lockring?
Maybe titamium just because it was already "lying around" in his shop, so it was the easiest path?
Reminds me of when the '90 Goodwill Games track races were at my local track. The Soviet mechanic had a truing stand made of titanium. When asked why, he said he wanted to make it out of steel, but couldn't get any. The Soviet planned economy put a large subsidy on titanium, to the point where here were tales of shovels and rakes being made of the stuff when steel wasn't available or economical.