Where on the master cylinder is the BB located? Anyone have a picture of it? I hear people say the front, but I don't see it on my front, my casting number is highly corroded and I can't tell if it is around there. If I can find it, then I believe it is the original one and I will refurbish it.

I took a picture of the casting number, is it supposed to be somewhere around here?

anybody out there have a picture?

there's a milled "half-moon" on the front of the master cylinder, that's where the BB code should be.

Thanks, I swear I looked everywhere but there. Then, I looked like you said and there it is. A BB and a very small 23 at a different angle to the BB. Anyone know what the number is for?