Hi all,

I am working on a lower end bike (to teach myself bicycle mechanics) and was wondering what tool to use to tighten/loosen this bottom bracket cone.

Thanks!

Thanks!

I also found this: https://www.sheldonbrown.com/opc.html

screwdriver, flat head..... tap against the slot with a hammer... turns clockwise to loosen.

Agreed. Whatever tool fits the slots and is within arm's reach. Andy

This bottom bracket (much like the rest of the bike) was designed not to need specialty tools. A big regular screwdriver will do the job.

Thanks for the info everyone!