Originally Posted by
mstateglfr
Its mentioned that 6-10sp have the same spacing. I use a SRAM 11sp cassette thats 11-36 and run it with a 105 11sp shifting. Works fine. Just wanted to add that in since its 11sp.
With the exception of Suntour Ultra 6 speed being the same as 7 speed, you are totally wrong.
Sheldon Brown's Bicycle Frame and Cassette Spacing Crib Sheet