A stubborn bottom bracket that took 4 hours to remove

I ran into a Shimano BB-UN55 that just would not come out of an old Schwinn frame last Tuesday. After stripping the splines on two different tools, I finally had to drill and use a punch to get it free. Has anyone else dealt with a bottom bracket that felt like it was welded in?

2 comments

2 Comments

reese_perry63d ago

Drilling it out sounds brutal, the splines on my tool just rounded off too.

irisw733d ago

All the way rounded off? That's a nightmare, did you try anything else first?