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Shifting problems - new drivetrain
#1
What do I need to adjust for my lower speeds on the middle chain ring. Gears 1-3 out of the nine want to jump gears slightly. My barrel adjusters have them shifting smoothly but in those particular gears they want to jump sprockets. I have a new chain, new outer and middle chain ring, and new cassette.

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#2
Hi Chuck,

It sounds like your derailleur hanger (where the derailleur screws into the frame) is slightly bent. This often happens when the bike falls over too hard onto the derailleur. I haven't covered this yet in a tutorial. It takes a special tool to align... so it's probably pretty cheap to get your local shop to fix it for you.

Park DAG-1
Let me know if that helps :-)

<hr />
Update: Got a hanger alignment video done:
http://bikeride.com/derailleur-hanger-alignment/
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#3
Thanks Alex. I was hoping that wasn't it... I will have it checked out.

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#4
You're right it was a cheap fix. They didn't charge me anything to adjust it. They said it was starting to wear out but not enough to put a new one on.

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