I never set up a SRAM system before, so I fretted over that a bit, looking at pictures of other bikes, and tried a longer length on one side. I was trying to prevent a constant contact with the head tube that would wear on the paint, and found the shorter ones would stay off the tube better than longer ones. It's a tad tight when the handlebars get close to 90 degrees, but that's not something I care about. I also ended up putting half a glueless patch on each side of the head tube where the housing contacts it.