I am in the process of building up an old Giant road bike. I am wanting to make it a 9x1. I am wanting to use a road crank with only the large ring, but respace the crank so the large ring will be at the proper alignment. How does one determine the proper bb width to achieve the alignment?
I have thought of buying a track crank, but I can purchase new 105 for less money and in the color (black) that I want.
Thank for any input.