Originally Posted by
scottz123
Thanks for your response.
I apologize, but i am not familiar with the terminology.
Are you saying that @ one point, an offset "q" was somewhat normal? If so, what was difference in offset?
Thanks in advance!
Offset Q-factor is about as old as chain drive. Nobody ever thought about it much. Even on modern bikes with BB30 or external cups, the cranks are attached at a set distance from each other, and chainline may be changed by moving spacers, which can create offset Q.
It's just that 12mm is well above typical, so may be noticeable, and then again may not. This is why I suggest completing the build and riding. You can cross the offset bridge if or when you come to it.
My rule No.17 of basic bike mechanics is that any perceived or theoretical "problem" that doesn't manifest as one when riding, isn't one. Ride performance trumps all measurements.
BTW- who's the brainchild who decided to make the number/pound symbol into a hash tag?