I'm in the process of ordering new sprockets and chain. stock gearing 15-43
I was thinking of going 1 down in the front to 14-43.
however, 43 is out of stock and 42 is available.
I remembering reading somewhere even teeth count for both front and rear is not good.
Is this an old wives tale? should I wait for the 43 or just go ahead with the 42?