You are reading a single comment by @gbj_tester and its replies.
Click here to read the full conversation.
-
I thought the 68/73 switchover occurred in the 90s
There was no "switch-over", both widths have always existed side by side since 73mm first arrived. The question is moot, since Shimano HT2 MTB cranksets will work with either, they just use a 2.5mm spacer each side between the cups and the shell for 68mm and omit them for 73mm.
gbj_tester
frankenbike
I defer to your knowledge but I thought the 68/73 switchover occurred in the 90s.