Advertise on Bikeforums.net



User Tag List

Results 1 to 12 of 12
  1. #1
    Senior Member fixedgear80's Avatar
    Join Date
    Jul 2010
    Location
    Portland Or
    My Bikes
    80"s Raleigh Comp 48X18
    Posts
    432
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    "Chain noise" only over bumps

    Really sorry if this has been asked already....I'm sure it has LOL.

    Well I just put my new bike together about 3 days ago (40 miles) and Shes a very smooth girl (Reynolds 531). At speed all I can hear is tires on the road! Until I hit a minor bump. The chain will rattle/shake. Its kind of unsettling, my chain only has about .75" of wiggle room.
    I didn't hear this on my old beater (Alum Frame) Could it be the Steel flexing? Or do I just need to take a link out of my chain? Running 48X16 rear axle is in the back of the dropouts. Will be upgrading to a 18t once I sell my old frame set.
    p.s. Lets not start the chain tension wars over this
    Thanks.
    Attached Images Attached Images
    Quote Originally Posted by TejanoTrackie View Post
    Toe clips and straps are a fashion statement for 99.9996 % of the cycling population.
    1981 Raleigh Comp G.S. Conversion
    [SIGPIC][/SIGPIC]
    Racking up the miles!

  2. #2
    Constant tinkerer FastJake's Avatar
    Join Date
    May 2010
    Location
    Madison, Wisconsin
    Posts
    6,014
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    There are lots of possibilities. Are you sure it's the chain? Check this out: http://sheldonbrown.com/creaks.html

    Unless your frame is cracked, I really doubt it's to blame.
    Why "derailer" is the correct way to spell the gear-change mechanism: sheldonbrown.com/derailer.html

  3. #3
    GONE~
    Join Date
    Apr 2010
    Posts
    6,745
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    No don't take a link out, it's normal. I get it all the time when I go over something bumpy, it's just the chain bouncing.

  4. #4
    Senior Member fixedgear80's Avatar
    Join Date
    Jul 2010
    Location
    Portland Or
    My Bikes
    80"s Raleigh Comp 48X18
    Posts
    432
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks Vixtor as you can see that chain isn't very slack at all. I don't hear any other noises except for that. I MASHED her over Burnside Bridge out of saddle NO BUMPS=No Noises. I just think its the chain, I'm not worried about it hopping off or anything. No cracks on her trust me gave her the once over about 30 times, in the past 4 months shes been in my living room.
    Quote Originally Posted by TejanoTrackie View Post
    Toe clips and straps are a fashion statement for 99.9996 % of the cycling population.
    1981 Raleigh Comp G.S. Conversion
    [SIGPIC][/SIGPIC]
    Racking up the miles!

  5. #5
    Junior Member
    Join Date
    Nov 2009
    Location
    Portland, OR
    My Bikes
    Surly Steamroller
    Posts
    5
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Do you have a freewheel on the other side? Those can be noisy if there is no chain attached to them, especially over said bumps.

  6. #6
    モㄥ工匕モ 爪モ爪乃モ尺 evilcryalotmore's Avatar
    Join Date
    Feb 2010
    Location
    LA San Gabriel, California
    My Bikes
    Custom frame
    Posts
    2,108
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    I had this problem when my chain tension was too low. Also try taking both rims off and re setting them. My front rim was making a werid noise that sounded like a chain boucning. now its gone.

  7. #7
    Veteran Racer TejanoTrackie's Avatar
    Join Date
    Jul 2009
    Location
    Ciudad de Vacas, Tejas
    My Bikes
    28 frames + 73 wheels
    Posts
    7,163
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    This problem only occurs with blue chains.
    What, Me Worry? - Alfred E. Neuman

    Quote Originally Posted by Dcv View Post
    I'd like to think i have as much money as brains.

  8. #8
    Junior Member
    Join Date
    Nov 2008
    Posts
    20
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by TejanoTrackie View Post
    This problem only occurs with blue chains.
    lol

  9. #9
    Senior Member fixedgear80's Avatar
    Join Date
    Jul 2010
    Location
    Portland Or
    My Bikes
    80"s Raleigh Comp 48X18
    Posts
    432
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Maybe its the freewheel? I have looked down while listening and I can see it jumping slightly.
    I hope a new (silver) chain or tension, will help. And yes the freewheel needs to come off. Thanks
    Quote Originally Posted by TejanoTrackie View Post
    Toe clips and straps are a fashion statement for 99.9996 % of the cycling population.
    1981 Raleigh Comp G.S. Conversion
    [SIGPIC][/SIGPIC]
    Racking up the miles!

  10. #10
    sɹɐʇsɟoןןnɟsʇıbɟɯo jdgesus's Avatar
    Join Date
    Oct 2010
    Location
    seattle, too many links
    My Bikes
    fixed gear recumbent trike
    Posts
    3,990
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    ah. probably is.

    i have experienced something similar with rattles, and taking off the freewheel from the flip/flop fixed it.
    Quote Originally Posted by yummygooey View Post
    crabon/campy/rapha/roadie-bro.

    next step is recumbent.




    my bikes | bike blog | beer blog | work 1 | work 2

  11. #11
    Senior Member MPC Biker's Avatar
    Join Date
    Oct 2010
    Location
    Toronto
    My Bikes
    1986 Miele Elite S, SunTour Sprint
    Posts
    197
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    creaks and clicks can come from anywhere. Just last spring I was working on a bike for a friend, his BB was making some noise so i thought a good examination and regrease was in order. When i got the cups off, two acorns fell out and landed in my tub of grease. My best guess is that it was stored outside without a seatpost in the fall when the squirrels would have been storing nuts for the winter.

    Just saying don't put all your effort into one spot or problem, might not be your chain.
    1986 Miele Elite S, full SunTour Sprint Groupo.
    1984? Binachi Ibex, currently living as a three speed (triple front, single rear)
    ----- My stealth black fixie, (doesn't stand out in the racks downtown)

  12. #12
    Senior Member fixedgear80's Avatar
    Join Date
    Jul 2010
    Location
    Portland Or
    My Bikes
    80"s Raleigh Comp 48X18
    Posts
    432
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Honestly the frame has been given the once over a few times. I did a lot of work by hand sanding lugs and sanding the paint off All By Hand the frame is not the problem.
    Quote Originally Posted by TejanoTrackie View Post
    Toe clips and straps are a fashion statement for 99.9996 % of the cycling population.
    1981 Raleigh Comp G.S. Conversion
    [SIGPIC][/SIGPIC]
    Racking up the miles!

Posting Permissions

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