50+ was a place you could discuss all factors related to cycling beyond the half way mark. Sometimes family, work and health issues have every bit as much an effect and this was a place people could discuss them without the bravado (stupidity) of the 41.
I think Pub 51 is probably a good idea but there is no continuum of discussion in that kind of format. Give it a try, but maybe back off the heavy hand in regards to cycling and age related issues.
If there are harsh words, then hand out warnings. I wouldn't make changes though to appease the squeaky wheels.
Just my suggestion.