Bike is of unknown age (probably around 12 years old) and uses Shimano 600. Started making a clicking/popping while pedaling, so I want to replace it. Pictures:
Sheldon Brown maintains that the 600 crankset goes with a 113mm or 115mm spindle. (I'd go for the shorter spindle as long as your chainrings aren't already quite close to the chainstay; this keeps q-factor small- getting the 115mm, however, guarantees that there will be no disasters). You probably have a 68mm BB shell with English thread (I'm not sure that Shimano ever made BB cups for other thread types). So, provided that you get spindle length, shell width and thread type right, the one that you have depicted will be fine. If it were me, I'd get the UN-73 rather than the UN-54 -the bearings ought to last a bit longer.
Sheldon Brown maintains that the 600 crankset goes with a 113mm or 115mm spindle. (I'd go for the shorter spindle as long as your chainrings aren't already quite close to the chainstay; this keeps q-factor small- getting the 115mm, however, guarantees that there will be no disasters). You probably have a 68mm BB shell with English thread (I'm not sure that Shimano ever made BB cups for other thread types). So, provided that you get spindle length, shell width and thread type right, the one that you have depicted will be fine. If it were me, I'd get the UN-73 rather than the UN-54 -the bearings ought to last a bit longer.
I can't find anyone that sells them anymore 🙁
Maybe I should buy a couple to stock up because everything else is in excellent condition.