Claris front won't work with your left shifter. The rest should work.
Have you diagnosed the problem in the rear? Derailleurs are pretty simple, just a lever and a spring, and a lot of time shifting problems are in the shifter or the cable or the adjustment
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Genesis 49:16-17
"Well, well!" said Holmes, impatiently. "A good cyclist does not need a high road. The moor is intersected with paths and the moon is at the full."
Last edited by Darth Lefty; 11-27-16 at 10:02 AM.