Originally Posted by lbthomps
Quick question how is the chain aligned if you are using two different chainrings up front? do you have to use spacers in the back to change the chainline when you want to switch gears?
The straightest alignment is with the bigger ring. It is placed on the crank to align as perfectly as possible with the rear cog. When you put it on the smaller ring, it will be suboptimal, *compared* to the bigger ring. It works just fine, of course. The smaller ring works fine with my fixed cog on the other side of the flip flop hub. No spacers are involved.
But, just to be clear, it is optimized for the larger ring.