NOS Shimano 73mm Shell Square Taper Bottom Brackets

We were able to source a few of these unobtainium square taper bottom brackets with a 73mm shell.  Lots of mountain bikes from the 90's and early 2000's use 73mm BSA bottom bracket shells, especially aluminum frames.  Our Tanglefoot Hardtack and Moonshiner frames also use 73mm shells, and if you wanna go square taper on one of those, you'll need a 73mm bottom bracket.   We highly suggest only use Chromoly spindle bottom brackets, Stainless spindles are brittle and snap, Ti spindles flex under heavier riders and are known for creaking.  I'd pick Ti over Stainless, but I'd pick Chromoly over both of those.  Stiff, strong, doesn't snap, doesn't creak.   These are not the absolute best bottom brackets Shimano ever made, but they're up there.  Expect them to last 10,000 miles under normal not slop riding conditions.