Hi,

I have in my old REDLINE 800P a flight crack 401 with "open" BB, so I will use this crack in my JMC-project but I prefer a "sealed" BB!

I havn't idea, was a "sealed" BB for a flight crack available in the 80's or can I use a other "sealed" BB?

Many thanks for the answers.

Greetings from germany.

Matthias

redline techmatic and hadley were sealed bb's available for the threaded flight spindle.

or you can do what i did and use a non threaded 90's redline sealed bb. cheaper and easier to find.