Advertise on Bikeforums.net



User Tag List

Results 1 to 14 of 14
  1. #1
    Member thepatient's Avatar
    Join Date
    May 2009
    Location
    Southern California
    My Bikes
    Road Bike: 2008 Fuji Roubaix Pro. Mountain Bike: 2007 GT Avalanche 1.0
    Posts
    49
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Pleaaaase tell me I don't have to buy a new derailleur. :(

    Yesterday my rear derailleur flew off while I was about to ride back home. I wasn't able to get a good look at it until now. It seems broken. I don't think it can be fixed with scotch tape and gum. :\ I may have to replace it. What do you guys think?
    Attached Images Attached Images

  2. #2
    Waiting to commute... Amoxicillin's Avatar
    Join Date
    Aug 2007
    Location
    Basel, Switzerland
    My Bikes
    Number of bikes changing ...
    Posts
    137
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    From what one can see on the pic it seems that the deraileur hanger needs to be exchanged. If it's interchangeable in most modern bikes. Contact your bike manufacturer for the correct replacement as they come in different shapes. That's all, no derailleur needed. You can screw it loose with the big hexagonal on the top of the hanger. This part is pretty cheap compared to a derailleur. Hope this helps.

    Amox
    Think of bicycles as rideable art that can just about save the world. Imagine, they can even have cupholders...

  3. #3
    Waiting to commute... Amoxicillin's Avatar
    Join Date
    Aug 2007
    Location
    Basel, Switzerland
    My Bikes
    Number of bikes changing ...
    Posts
    137
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Did you have a crash? I've seen a couple of badly bent hangers but none that was actually broken... :s
    Think of bicycles as rideable art that can just about save the world. Imagine, they can even have cupholders...

  4. #4
    Member thepatient's Avatar
    Join Date
    May 2009
    Location
    Southern California
    My Bikes
    Road Bike: 2008 Fuji Roubaix Pro. Mountain Bike: 2007 GT Avalanche 1.0
    Posts
    49
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Amoxicillin View Post
    From what one can see on the pic it seems that the deraileur hanger needs to be exchanged. If it's interchangeable in most modern bikes. Contact your bike manufacturer for the correct replacement as they come in different shapes. That's all, no derailleur needed. You can screw it loose with the big hexagonal on the top of the hanger. This part is pretty cheap compared to a derailleur. Hope this helps.

    Amox
    Aww there are different types of derailleur hangers for every manufacturer? Er that means I won't find it at my local bike shop and I'll have to order it and wait until it comes in through the mail. :/ haha. It's good to know I don't have to replace the whole thing; I thought it was part of the derailleur itself. Thanks so much. :] you're the awesome-est.

  5. #5
    OUTLAW BIKER merckx_rider's Avatar
    Join Date
    Aug 2008
    Location
    So Cal
    My Bikes
    Eddy Merckx team 7-11 Corsa Extra Full Dura Ace
    Posts
    459
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    It looks like you probably need a new RD, if you can take a shot of the RD where it broke I can say for sure..
    http://www.gotbiz.com/uweb/images/freewebsite_uweb.gif The Creator of Uweb! Worlds Best Online Webpage Editor only available at gotbiz.com
    Free Website for your business at gotbiz.com

  6. #6
    Member thepatient's Avatar
    Join Date
    May 2009
    Location
    Southern California
    My Bikes
    Road Bike: 2008 Fuji Roubaix Pro. Mountain Bike: 2007 GT Avalanche 1.0
    Posts
    49
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Amoxicillin View Post
    Did you have a crash? I've seen a couple of badly bent hangers but none that was actually broken... :s
    Nooo I didn't crash haha. I'm not that good of a cyclist yet. . as I get on my bike, the first thing I do to start pedaling is let my whole weight down on the pedal, (I guess maybe everyone does this ) but this time I noticed as I got on my bike that the pedal was stuck. It was too late to get off when I heard something snap from the back. It was the derailleur. :/ I think it may just be to improper use of something :/. Maybe shifting at an inappropriate time. I'm not sure.

  7. #7
    Member thepatient's Avatar
    Join Date
    May 2009
    Location
    Southern California
    My Bikes
    Road Bike: 2008 Fuji Roubaix Pro. Mountain Bike: 2007 GT Avalanche 1.0
    Posts
    49
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by merckx_rider View Post
    It looks like you probably need a new RD, if you can take a shot of the RD where it broke I can say for sure..
    Darn, I hate when I come across new bike part terminology. XD I'm such a noob hahah. What's a rd? Sorry. :X

    Ill take a shot of it as soon as I get home. And as soon as I find out what an RD is XD. I'm at school now :/.

  8. #8
    Recreational Commuter
    Join Date
    Apr 2006
    Location
    Central Ohio
    My Bikes
    Two brand-less build-ups.
    Posts
    998
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    RD = Rear Derailleur.

    It looks like the hanger to me. Of you search on Google by the make and model of your bike and the wordsd "derailleur hanger", you'll be able to get a picture of one. There's a good chance that a bike shop where you are will have one in stock.
    Riding the Ohio MS Central Ohio Challenge tour, July 12th.

  9. #9
    Great State of Varmint Panthers007's Avatar
    Join Date
    Sep 2008
    Location
    Dante's Third Ring
    Posts
    7,481
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    I can see through the haze of the photo that the derailleur-hanger - and not the RD itself - is broken in half across the bolt-hole. This is what you need to replace. Once you have done this, you'll be able to see whether the RD itself sustained any damage - but it looks like it's alright from here.
    How do you keep an idiot in suspense?

  10. #10
    WPI roy5000x2's Avatar
    Join Date
    Dec 2006
    Location
    Worcester, MA
    My Bikes
    2008 Trek Madone 5.2 Pro
    Posts
    1,133
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Your derailleur hanger is clearly snapped at the bolt. Chances are your rear derailleur is fine, but take a picture of it and post it up anyways so we can see it. Bring your bike into your LBS, and if they're a good shop, they'll get you a new bolt for the derailleur and should be able to find you a hanger that will fit. At worse they'll have to order both those parts. It should run you $10 or so for parts.
    2010 Soul Faith
    2008 Trek Madone 5.2 Pro
    1970s Univega Fixie

    4*---------3
    "Do what you think you ought to."

  11. #11
    Hypoxic Member head_wind's Avatar
    Join Date
    Oct 2005
    Location
    Colorado Springs
    Posts
    544
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Maybe this'll help:
    http://www.derailleurhanger.com/

  12. #12
    Senior Member
    Join Date
    Oct 2008
    Posts
    2,930
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    That's a great pic of the derailleur cable and chain. I can even see the freewheel fairly well. The problem is, the things your interested in are really not visible. Takeit to a bike shop, get a better photo, or both.

  13. #13
    Senior Member
    Join Date
    Oct 2008
    Location
    Ohio
    My Bikes
    Franklin Frames Custom, Rivendell Bombadil, '83 Specialized Stumpjumper
    Posts
    1,289
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Maybe take a moment or two with your cameras instruction manual

    A clear photo always helps.

  14. #14
    Member thepatient's Avatar
    Join Date
    May 2009
    Location
    Southern California
    My Bikes
    Road Bike: 2008 Fuji Roubaix Pro. Mountain Bike: 2007 GT Avalanche 1.0
    Posts
    49
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Garthr View Post
    Maybe take a moment or two with your cameras instruction manual

    A clear photo always helps.
    Sorry it's an old blackberry what I used with about 1.8 megapixels or less. Old 'cause the two year contract is almost over and I'm gonna get a nicer phone. It's been through some abuse; has got wet a few times.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •