I've picked up a new (used) road bike but I need to change the stem length and I don't like the handlebars. I have a pair of Bontrager handlebars that I love but the center diameter is 26mm. The handlebars coming off the newer bike have a 31.8 mm center diameter. I can get a stem in the proper length and clamp diameter to accommodate either bar, but I want to know how much I'd be giving up in the way of strength going to the smaller center dia bar. Any other pros/cons to swapping the bars as long as I'm changing stems anyway?