I'm rebuilding the bottom bracket in my '80s Raleigh Wyoming. The spindle has some pitting on it, so I'd like to replace it. It is a 3TM, which is not a spindle I can find listed at Sheldon Brown. I can find 3T, but no 3TM for sale. When I measure, I get 52mm middle, 39mm right, 37mm left. Is a 3TM available?


I suppose I could upgrade to cartridge bottom bracket, but I like being able to rebuild these things.