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I want to mount the following SunRace clamp-on shifter set horizontally as a "thumb" shifter on a straight MTB handlebar (22.2mm). I will remove the left lever and only use the right with the clamp.

The problem is that the lever is not easy to reach because it swings from parallel with the handlebar to straight forward. I would like to have the angle of the full swing of the lever go from a little towards me to a little forward.

Is there an easy way to change the angle of these stem-mount shift levers (which are almost the same as downtube shift levers) by about 45 deg?

Note (in second pic) that these are meant for stem mount, so there is a cable housing stop for the part of the shift cable housing that goes from the handlebar to a downtube stop.

enter image description here enter image description here

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So, do you have a cable/housing stop that will work with these? –  WTHarper Oct 10 '13 at 3:58
Also, do you already own these shifters, or are you planning on buying them to modify them? –  WTHarper Oct 10 '13 at 4:00
@WTHarper I did buy them and found out that the angle is not good. The second pic is not my setup (got it from the web). There is a built-in cable/housing stop, as in the second pic, which will allow housing to a second housing stop that is on the downtube in the standard place. Then it's standard onwards. I expect changing the angle will require changing the built-in stop's angle, but I don't know if that's possible or how to do it. –  PositiveK Oct 10 '13 at 17:38
I'm not sure I understand the question - are you looking for something like Paul Thumbies (paulcomp.com/thumbies.html)? You might be able to do a little modification to mount them on the handlebar with those. –  Batman Oct 13 '13 at 5:11
@Batman: Sort-of. Paul and VeloOrange thumbies are $75 and $60 half-solutions to getting cheap-ish silver thumb shifters (they don't include the levers!). Shouldn't there be a cheap steel version of those, such as what come included with the SunRace clamp-on stem/downtube shifters? The only significant difference that I can see is that Paul/V-O have a slight twist to the square hole and a barrel adjuster. IDEAL: Silver/gray colored indexed mtb-handlebar mounted thumb-shifter for <$20. Only seems avail for downtube/stem, so I figured I'd just move them on top, except for this angle issue. –  PositiveK Oct 13 '13 at 17:07
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