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parts all different
I have two 7700 R levers apart at the moment, one flight deck, the other not... guess whether the parts are compatible. One has a cracked plastic ring preventing a spring from properly returning, the other had a lever that didn't shift unless the main lever was held, so I thought I would poach parts to make one good shifter.
I ended up drilling a second hole to tighten up the main lever return spring and the action has greatly improved... when I get around to putting it on a bike I will see if it holds up. I hope this doesn't void my warranty. When I get a plastic welder I will see what I can do with the other lever.
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