, is 10 speed really that much better?
5 by 2 0r 1 by 10?
and better for who , the sellers of the more expensive parts , certainly , they cost more ..
and do the math .. what gear ratios do you actually use ? say 14,15,16,17,18,19
will having 14~20 with only a 1 tooth difference between them matter?
or can you skip some?