Originally Posted by
dzinehaus
I may be missing the point but, at te point of having 2 cogs on the same side, why not go with a multiple geared bike with a RD and a single chain ring?
Yes, you completely missed the point. he doesn't want to replace the crank. He wants both chainrings for different ratios, he likes a very tall gear, his friend wants to try fixed but won't be able to push that, so he wants the smaller chainring for him, but with the same sized cog, his friend will be spinning like mad, so he's thinking about running 2 cogs. I would just run the 17t