Advancing age and declining flexibility demand a repositioning of the handlebar on my beloved Spesh Roubaix. The steerer is 1 1/8" carbon and the Sequoia drop bar has a 31.6mm clamp diameter. I'd like to raise the bar as far as possible with a sharply angled stem or, perhaps, an adjustable one. My search has found the Dimension SM 2912 as the most likely prospect, although I'd like a little bit longer one. Can anyone suggest a better alternative?