Originally Posted by
CrankyOne
Three speeds is fine for 90% of the U.S. that isn't mountains. Seven or eight would be nice but not essential. Just think how many people ride fixies for a variety of hilly commutes. This isn't racing.
I live in a very hilly area, my 3 speed IGH are ok for grades up to around 10%, my 7 speed IGH, 8 speed IGH, and 10 speed are are ok for grades up to around 18%. That said, its going to take a little while before grades will be "ok" no matter how many gears one has.