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rear derailleur into spokes(6 posts)

rear derailleur into spokesluv2spin
Sep 7, 2003 2:26 AM
what might the cause be of my rear derailleur suddenly getting pulled up into my rear wheel? while riding up a hill the other day, my rear der. suddenly got pulled up into my rear wheel causing all kinds of havoc. on a side note, my local bike shop wants to charge me 100.00 for a new dura ace rear derailleur. i know i can get one for 63.00 shipped on line. i want to support my shop, but it seems every time i go there i get charged the absolute max. just looking for some input. thanks
re: rear derailleur into spokesFarmer John
Sep 7, 2003 2:44 AM
there are only two reasons that your R. Der would get pulled into your wheel.

1: You dropped the bike onto it's drive side and bent the hanger in. Have it straightened or replace it (if you can)

2: You were mucking about with "adjusting" your R. Der's stops. This is the lesser likely of the two.

Look at the LBS issue this way. I run a retail shop. when presented with life's little mistakes (such as this), yeah, I charge retail for the part, but straightening your frame wouldn't cost you. Save money buying online, I"ll still do it, but you'll pay and I'd be willing to bet that it'll end up costing you a bit more...
Very good answerMR_GRUMPY
Sep 7, 2003 1:44 PM
Another possible answer is that his wife or kids knocked the bike over, and didn't say anything about it.......Or it was that damn dog.
A bit rarerAtombomber
Sep 7, 2003 1:52 PM
But the deraileur cage might be bent. Also, a stiff chain link can make the rear deraileur do some wacky things too.

The bicycle is a simple machine. As long as everything is the way it should be, it should ride fine. If someone lacks mechanical aptitude and there can't repair what they broke/damaged, then they should expect to pay for the service. You need to figure that the deraileur from will the shop will be installed and adjusted (and maybe have the frame tweaked, chain lubed, etc) for the $100. If you buy it online and have it installed by the shop, you'll pay labour and shop supplies as needed. You can do the math, and you'll need to wait a week before the part shows up, unless you pay extra for overnight equaling more money.
Naw, man, I mean, I was just riding along ... nmOldEdScott
Sep 8, 2003 8:17 AM
Another reasonJimP
Sep 10, 2003 11:05 AM
Another reason could be that the spokes on the rear wheel have gotten too loose on the non-drive side. This will allow the wheel to shift back and forth a little when out of the saddle climbing. When this occurs, you may have done more dammage to the wheel than meets the eye. You may have pulled a spoke that will now break at a most inopportune time. The rim may also be damaged.

As for the $100. You can buy the part for $63 and pay for shipping and then you will have to install it yourself. How much is the hour of your time worth? Also, how does the bike shop pay the employee per hour and what is the hourly overhead of the shop for rent, insurance, lights, etc.? When you add up what the shop must charge you to replace the derailleur, the $100 isn't too bad.