The 5DEV Alloy 31. 8mm Handlebar is the kind of cockpit piece that disappears into a build. We swap it in before a big weekend, so it's the last thing on our minds once we're on the trail. What Our Gearhead(R) Experts Are Saying:"The 40mm rise puts my wrists in a neutral position that takes the edge off long descents. The 31. 8mm clamp drops in without a compatibility headache."