Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Mentioned: 21 Post(s)
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First let's make sure it's the mounting, not the RD. Loosen both limits all the way and hand spring it across the range of the cassette. If it can't reach low, but has excess travel at high, it might be that the hanger tab is a bit thicker than normal, or that the cassette is more inboard than ideal.
If it comes up short at both ends, something internal on the RD is limiting it's travel. Disconnect the cable and take the RD off the bike. Flex it in your hands and observe what exactly is limiting it's range of motion.
There's a bit of a mystery here, but if you're methodical, you'll figure it out.
An ounce of diagnosis is worth a pound of cure.
“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin
“One accurate measurement is worth a thousand expert opinions”
- Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance