Originally Posted by
FBinNY
You don't know me, but I tend to be fairly precise in my use of the language. In this case, I wanted to avoid the obvious, figuring it was implied.
Moreover, I intentionally didn't mention chain sag, because while the minimum is a hard number because of the potential consequences, there's fudge room regarding the small/small considerations.
It's not rare for folks with triples to use a chain too long for use with the granny and the smaller sprockets. Even if they end up in those combinations, it's a "no harm, no foul" situation.
The verb allows, while appropriate for the minimum length definition, is wrong with the maximum definition if you do not precise the sag, allows means a hard limit as you have mentioned. I liked your formula and it struck me with it's simplicity but i felt there was something wrong with it so i thought you would appreciate my contribution. Some people are very fast at judging others and that's sad.