And I'm being unclear?

True, my original statement was unclear/poorly written,

Also a fact that doing nothing and working with what you currently have requires little effort.
BTW, I agree he should leave it alone.

In one post you have decided what somebody should do, what is smarter, what is easier and when things are being done wrong.

We all know what you're saying is correct, but why the ton of bricks routine?

People do things that they "shouldn't" all the time. He obviously is trying tou use that combo or he wouldn't have found out that the ring rubs in the first place. What are you afraid of, the chain wheel police? A 1 or 2 mm spacer is another possibility for adjusting chain line as long as he does not have a cartridge style bb and yes the chain ring spacers would work, but a thinner chain won't always work with an indexed set-up.


Raedeke, to answer your original question, "How do I figure the proper width of the bottom bracket needed for a 9 spd/double" I would say put the chain on the small chain-wheel up front and the middle sprocket in the rear and see if the chain is reasonably straight, if so it is probably right. If it isn't straight the chains bias (inboard or outboard) will tell you if BB/spindle length could be better served with a different size. But never forget you are free to do whatever you would like. For whatever reason using the small-small combo is very common even though it is not recommended, and it is best to avoid cross chaining, but after getting this question for the billionth time, I'll just tell you what you want to know.