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I own a tourer with a butterfly bar mounted with the near flats rising. This puts the far flats rising towards the outside of my wrists. I have, however, seen butterfly bars mounted so that compared to the stem the near flats drop. This would put my far flats falling towards the outside of my wrists (a position I suspect I may like better. But I'm having difficulty finding comparative evaluations of mounting butterfly bars in these manners.

Mounted rising:

Mounted dropping:

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I don't know the answer but I'd just go ahead and try it. It's not going to cost you anything but a bit of time. – jimirings Jul 2 '12 at 12:11
up vote 7 down vote accepted

One thing you can be absolutely sure is: despite handlebars are designed to work some pre-defined way, there is nothing wrong about using them in a very different or even opposite way if that's what suits you best. The only two pre-conditions to do it is that you actually know what you want, and you actually know the practical, subjective pros and cons of each position.

If I were in your situation, I would choose the best position given my current stem. If that didn't work, I would perhaps swap the stem for another one that puts the handlebar in a better position.

Notice, also, that each image you posted places the brake levers in different zones, and that is a "design parameter" which you should consider. Most probably you'll benefit from having the levers in the position you stay most the time, so that they are within reach in case of an emergency stop being needed.

Hope this helps!

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Forward mounted brakes with butterfly bars appears to be associated with running road brake grips; correspondingly rear mounted brakes with butterfly bars appears to be associated with running flat-bar brake grips. Thanks for the answer, I do have plenty of configurations to play around with. – Samuel Russell Jul 2 '12 at 22:47

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