Tech tips » Cory

A bent derailleur hanger can cause poor shifting

Well, it looks like it’s drivetrain week on the web and everyone’s searching for flawless shifting on their rides. Following up on Ashwin’s piece on a quick cable lubing technique and Velorution’s thoughts on worn drivetrains comes a short entry on The Steeps about misaligned derailleur hangers.

Most bikes use cheaper derailleur hangers (ie. under $20), so it’s a reasonable idea to carry a spare hanger around in your hydration pack when you’re heading out for a day on the trails. I’ve found that it’s much easier to replace a tweaked derailleur hanger than it is to eyeball the alignment and try to bend the thing back into position. Remember, you can always check the suspect hanger once you get back to civilization.

4 Responses to “A bent derailleur hanger can cause poor shifting”

1. Posted by Ashwin | 8:45 am, 14 February 2006

One of the best tools I ever purchased was the Park DAG-1 hanger alignment tool. I cannot believe I waited so long to get something like this. I’ve spent so much time chasing shifting problems in the past. This thing would have saved me hours and hours.

2. Posted by BC | 11:24 am, 14 February 2006

Thanks for the link!

3. Posted by Guitar Ted | 7:45 pm, 14 February 2006

A tip for the terminally cheap, or desperate mtb rider with a bent replaceable drop out. Remove the dropout, find a nice flat piece of steel, ( many bench vices have this feature), a smooth ball peen hammer, and forge that baby flat again. I’ve done this to great sucess when out in the wilds of Wisconsin, and I bent up a hanger on an old Bianchi aluminum mtb. Got me back going again!

4. Posted by sanmusa | 6:02 am, 15 October 2006

Best place for derailleur hangers: http://www.derailleurhanger.com/

Like you I never ride out without an extra hanger in my Camelbak. It takes almost no space, it’s lightweight and could be the difference between riding home with 27 gears or only one.

Add your thoughts: