Originally Posted by
ericm979
Why would he need a 6703 left lever to use a 6703 crank?
You need a triple specific left shifter to work with a triple crank. If the new 11 speed 6800 only supports double cranks than there's no way to use it with a triple. Anyways, 6800 is supposed to be a huge step up in shift quality from 6700 so I'd be inclined to go with a compact double setup unless you know that you need a triple.