Originally Posted by
veganbikes
Thanks to everyone who responded here, I am in the process of figuring out my Klein MTB (possibly a Pinnacle from the early 90s) I am probably going to keep it pretty stock but like the idea of a external crank in case I want to change things up. I knew and had planned to order Phil bearings for it but didn't think about them doing a external BB however it makes sense since they do one for Swiss threads.
The pressed in original bottom bracket was relatively easy to knock out the spindle and then the bearings. The bearings and spindle were unharmed upon removal.
I instructed my beloved LBS to call Phil and order the bottom bracket. Am waiting on a call to say that the parts are now in stock.