Hi Everybody, I'd like to remove the fixed cup from my Drysdale. I have no idea as to whether the bottom bracket is original, but the bike is pre-WW2. I'm assuming that the brand of the bb is Brampton, because the spindle is marked thusly. The adjustable cup is the usual lockring and pin spanner arrangement.
The fixed cup however, looks like it requires a special tool. There are no flats, and other than the center hole through which the spindle passes, the only features are two pin-spanner sized holes on the outer cup face that are separated from each other by an angle of about 45 degrees, and positioned about midway between the inner spindle opening and the outer edge of the cup.
I can get both prongs of a pin spanner into these little holes, but they are separated by an angle that is to narrow to apply effective torque to the cup. I'm thinking that there's a special tool with stout pins and a long lever that fits into both the spindle opening and the pin receivers.
Any advice on removal would be most hepful.
Thanks,
Chuck Taylor
Scituate, MA USA