Notices
General Cycling Discussion Have a cycling related question or comment that doesn't fit in one of the other specialty forums? Drop on in and post in here! When possible, please select the forum above that most fits your post!

Rear wheel wobble

Old 04-26-22, 01:51 PM
  #1  
DyingAndDying
RespectIsEverything
Thread Starter
 
Join Date: Oct 2021
Posts: 26
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 27 Post(s)
Liked 3 Times in 3 Posts
Rear wheel wobble

Wobble so hard that the disc brake crashes into the calliper and makes this terrible sound. I heard the screws on the drop out could be bad, but that's not it. Heard the rotor could be bent, hear the rim could be bent... Bike wheel isn't trued, ball bearings worn down due to wobble. Dunno
DyingAndDying is offline  
Old 04-26-22, 03:05 PM
  #2  
Rolla
Victimless Criminal
 
Rolla's Avatar
 
Join Date: Sep 2020
Posts: 2,523
Mentioned: 11 Post(s)
Tagged: 0 Thread(s)
Quoted: 1118 Post(s)
Liked 2,707 Times in 1,203 Posts
Too many variables, not enough info. Take it to a bike shop and have the hub, rim, rotor, and spokes looked at.
Rolla is offline  
Likes For Rolla:
Old 04-26-22, 03:14 PM
  #3  
indyfabz
Banned.
 
Join Date: Jan 2010
Posts: 34,830
Mentioned: 202 Post(s)
Tagged: 1 Thread(s)
Quoted: 15909 Post(s)
Liked 10,155 Times in 4,950 Posts
Sounds like negative rim stretch.
indyfabz is offline  
Likes For indyfabz:
Old 04-26-22, 03:20 PM
  #4  
dabac
Senior Member
 
Join Date: Mar 2008
Posts: 8,673
Mentioned: 46 Post(s)
Tagged: 0 Thread(s)
Quoted: 1070 Post(s)
Liked 284 Times in 212 Posts
Originally Posted by DyingAndDying View Post
Wobble so hard that the disc brake crashes into the calliper and makes this terrible sound. I heard the screws on the drop out could be bad, but that's not it. Heard the rotor could be bent, hear the rim could be bent... Bike wheel isn't trued, ball bearings worn down due to wobble. Dunno
Is there a question in here or merely a rant?
Originally Posted by DyingAndDying View Post
Wobble so hard that the disc brake crashes into the calliper and makes this terrible sound. I heard the screws on the drop out could be bad,
Which screws would that be?
It kinda-sorta sounds like you’re talking about the screws found on some bikes with horizontal dropouts. But those just about never have disc brakes.
Originally Posted by DyingAndDying View Post
Heard the rotor could be bent
Sure, that can happen. Usually doesn’t take much. A bend bad enough to make a really bad sound should be readily visible.
Originally Posted by DyingAndDying View Post
hear the rim could be bent...
that certainly can happen too. But there’s no realistic way for the condition of the rim to influence the condition of the brake rotor.
Originally Posted by DyingAndDying View Post
…ball bearings worn down due to wobble…
Worn bbs can certainly contribute to bearing play. But the usual culprit is water etc getting into the bearing and attacking the bbs. A ”wobble”causing noticeable bearing wear is hugely unlikely.
dabac is offline  
Old 04-26-22, 03:33 PM
  #5  
Bimmer69
Junior Member
 
Bimmer69's Avatar
 
Join Date: Aug 2020
Location: Toronto, Canada
Posts: 95
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 38 Post(s)
Liked 38 Times in 24 Posts
Originally Posted by indyfabz View Post
Sounds like negative rim stretch.
No doubt caused by creeping up on women.
Bimmer69 is offline  
Likes For Bimmer69:
Old 04-26-22, 05:42 PM
  #6  
cxwrench
Senior Member
 
cxwrench's Avatar
 
Join Date: Jul 2013
Location: Nor-Cal
Posts: 3,278

Bikes: lots

Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 1638 Post(s)
Liked 2,411 Times in 1,247 Posts
Jesus, some of the posts on here...you have no idea what the OP is trying to do or find out. C'mon people, at least try to use 4th grade grammar and post something that makes sense. It's like a sizable percentage of the members here never made it to middle school.
And of course this should be in GD, but should have been posted in 'bicycle mechanics'.
cxwrench is offline  
Likes For cxwrench:
Old 04-26-22, 06:06 PM
  #7  
VegasTriker
Senior Member
 
Join Date: Feb 2006
Location: Sin City, Nevada
Posts: 2,670

Bikes: Catrike 700, Greenspeed GTO trike, , Linear LWB recumbent, Haluzak Horizon SWB recumbent, Balance 450 MTB, Cannondale SM800 Beast of the East

Mentioned: 18 Post(s)
Tagged: 0 Thread(s)
Quoted: 473 Post(s)
Likes: 0
Liked 173 Times in 134 Posts
Broken axle?

Have you checked for a broken axle? It happens. It will introduce a really bad wobble. The only way to be sure is to remove the bolts that hold the wheel to the frame or open the quick release and remove the wheel. If the axle is broken it will fall out in two pieces. It could be that the only thing keeping the wheel on the bike is the quick release or axle nuts.
VegasTriker is offline  
Old 04-26-22, 06:55 PM
  #8  
wolfchild
Senior Member
 
wolfchild's Avatar
 
Join Date: Feb 2008
Location: Mississauga/Toronto, Ontario canada
Posts: 7,508

Bikes: I have 3 singlespeed/fixed gear bikes

Mentioned: 22 Post(s)
Tagged: 0 Thread(s)
Quoted: 2887 Post(s)
Liked 1,642 Times in 803 Posts
Why don't you do a little bit of investigating yourself and see if you can find the problem ??....If you don't have time or if you lack enthusiasm for tinkering with bikes, then take it to a bike shop..
wolfchild is offline  
Old 04-26-22, 08:19 PM
  #9  
Homebrew01
Super Moderator
 
Homebrew01's Avatar
 
Join Date: Jul 2004
Location: Ffld Cnty Connecticut
Posts: 21,744

Bikes: Old Steelies I made, Old Cannondales

Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 1120 Post(s)
Liked 677 Times in 458 Posts
Originally Posted by DyingAndDying View Post
the disc brake crashes into the calliper and makes this terrible sound.
Hub related. Not rim or spokes. But they might have their own problems.
__________________
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike.

FYI: https://www.bikeforums.net/forum-sugg...ad-please.html
Homebrew01 is offline  
Old 04-27-22, 09:11 AM
  #10  
Iride01
MotuekaCascadeChinook
 
Iride01's Avatar
 
Join Date: Jul 2017
Location: Mississippi
Posts: 11,035

Bikes: Tarmac Disc Comp Di2 - 2020

Mentioned: 42 Post(s)
Tagged: 0 Thread(s)
Quoted: 4457 Post(s)
Liked 2,984 Times in 2,080 Posts
There are all sorts of possibilities that might be happening. I wouldn't completely eliminate rim and spokes, but more than a few spokes would have to be too loose and others over tensioned or the rim actually bent for that to be an issue.

Broken axle, loose cones, improper installation of most any of the involved components and etc.

More info about what your bike is and maybe a pic or two would help.

Posting in the mechanics sub-forum might have kept this thread for going downhill so fast.


Do you live near a bike shop? Doesn't cost you anything at most to just take it in and get their opinion of what the issue is. Though some of the larger high falutin bike shops might not let you near a mechanic. Most of the smaller ones are owned and run by the mechanic.

And most probably won't charge an arm and a leg to fix it. Unless there is damage that requires replacement of expensive parts.
Iride01 is offline  
Old 04-27-22, 10:57 AM
  #11  
Mojo31
...
 
Join Date: Jul 2020
Posts: 7,562
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5739 Post(s)
Liked 3,503 Times in 1,927 Posts
Originally Posted by indyfabz View Post
Sounds like negative rim stretch.
Could be positive rotor wear.
Mojo31 is offline  
Likes For Mojo31:
Old 04-27-22, 11:43 AM
  #12  
indyfabz
Banned.
 
Join Date: Jan 2010
Posts: 34,830
Mentioned: 202 Post(s)
Tagged: 1 Thread(s)
Quoted: 15909 Post(s)
Liked 10,155 Times in 4,950 Posts
Originally Posted by shelbyfv View Post
I hear on good authority that functioning wheels are overrated.
Would that good authority be Larry S?
indyfabz is offline  
Likes For indyfabz:
Old 04-27-22, 12:17 PM
  #13  
zandoval 
Senior Member
 
zandoval's Avatar
 
Join Date: May 2010
Location: Bastrop Texas
Posts: 3,229

Bikes: Univega, Peu P6, Peu PR-10, Ted Williams, Peu UO-8, Peu UO-18 Mixte, Peu Dolomites

Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 492 Post(s)
Liked 730 Times in 480 Posts
Originally Posted by DyingAndDying View Post
Wobble so hard that the disc brake crashes into the calliper and makes this terrible sound. I heard the screws on the drop out could be bad, but that's not it. Heard the rotor could be bent, hear the rim could be bent... Bike wheel isn't trued, ball bearings worn down due to wobble. Dunno
If this is not a Troll then here is a solution. Set up or hang the bike for maintenance. Take the wheel off and check it closely. Rim, Spokes, Bearings, Tension. Round, Dish and any thing else. The list is long but we have Youtube so it is all possible for you to do this easy. What ever tools you need you can get. Bike shop costs are exsorbatant and ecconomical bike tools abount. Don't be afraid of Harbor Friehgt or cheap tools. You can get the good ones latter if you need them and will apreciate them much more latter on. Solving problems and working on your own bike is truely rewarding.

Or take it to a bike shop and hope you can afford to pay them to do it and after you pay them that they do... Do It!

Note: I have great sympathy for those Bike Shops and employees that are trying to keep thier head above water in a drowning pool. I have no sympathy for Bike Dealerships more intrested in financing than service.
__________________
No matter where your at... There you are... Δf:=f(1/2)-f(-1/2)
zandoval is offline  
Old 04-28-22, 05:22 AM
  #14  
noimagination
Senior Member
 
Join Date: Oct 2016
Posts: 535
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 285 Post(s)
Liked 307 Times in 178 Posts
Originally Posted by VegasTriker View Post
Have you checked for a broken axle? It happens. It will introduce a really bad wobble. The only way to be sure is to remove the bolts that hold the wheel to the frame or open the quick release and remove the wheel. If the axle is broken it will fall out in two pieces. It could be that the only thing keeping the wheel on the bike is the quick release or axle nuts.
It's pretty obvious from his post that OP hasn't checked ANYTHING.
noimagination is offline  
Old 04-28-22, 06:13 AM
  #15  
BlazingPedals
Senior Member
 
BlazingPedals's Avatar
 
Join Date: Dec 2004
Location: Middle of da Mitten
Posts: 12,187

Bikes: Trek 7500, RANS V-Rex, Optima Baron, Velokraft NoCom, M-5 Carbon Highracer, Catrike Speed

Mentioned: 14 Post(s)
Tagged: 0 Thread(s)
Quoted: 1395 Post(s)
Liked 591 Times in 369 Posts
If the rotor rubs, it's either the rotor itself or the hub. The hub could have loose bearings or a bent/broken axle. Most commonly, especially with low-end mechanical disc brakes, the rotor becomes out-of-true due to hard braking. It can be trued with your thumbs, but there is a tool that makes things easier.

Now if your RIM has a wobble, that is a separate issue and should also be dealt with.
BlazingPedals is offline  
Old 04-28-22, 10:11 AM
  #16  
KerryIrons
Full Member
 
Join Date: Mar 2012
Posts: 347
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 151 Post(s)
Likes: 0
Liked 169 Times in 100 Posts
Originally Posted by DyingAndDying View Post
Wobble so hard that the disc brake crashes into the calliper and makes this terrible sound. I heard the screws on the drop out could be bad, but that's not it. Heard the rotor could be bent, hear the rim could be bent... Bike wheel isn't trued, ball bearings worn down due to wobble. Dunno
In a related request, my bike isn't working right. Please tell me what's wrong and how to fix it.
KerryIrons is offline  
Old 04-28-22, 10:55 PM
  #17  
Siu Blue Wind
Homey
 
Siu Blue Wind's Avatar
 
Join Date: Apr 2005
Posts: 13,419
Mentioned: 55 Post(s)
Tagged: 0 Thread(s)
Quoted: 2293 Post(s)
Liked 1,083 Times in 702 Posts
Originally Posted by wolfchild View Post
Why don't you do a little bit of investigating yourself and see if you can find the problem ??....If you don't have time or if you lack enthusiasm for tinkering with bikes, then take it to a bike shop..
Some people come on here to learn or for help. Some are scared to mess with their bike for fear of messing something up. So...they ask here.
__________________
Originally Posted by making View Post
Please dont outsmart the censor. That is a very expensive censor and every time one of you guys outsmart it it makes someone at the home office feel bad. We dont wanna do that. So dont cleverly disguise bad words.
Siu Blue Wind is offline  
Old 04-28-22, 10:55 PM
  #18  
Siu Blue Wind
Homey
 
Siu Blue Wind's Avatar
 
Join Date: Apr 2005
Posts: 13,419
Mentioned: 55 Post(s)
Tagged: 0 Thread(s)
Quoted: 2293 Post(s)
Liked 1,083 Times in 702 Posts
Originally Posted by shelbyfv View Post
Plug in those earbuds and crank it up, no problem. I hear on good authority that functioning wheels are overrated.
Thanks for trying to make people feel crappy.
__________________
Originally Posted by making View Post
Please dont outsmart the censor. That is a very expensive censor and every time one of you guys outsmart it it makes someone at the home office feel bad. We dont wanna do that. So dont cleverly disguise bad words.
Siu Blue Wind is offline  
Old 04-28-22, 10:58 PM
  #19  
Siu Blue Wind
Homey
 
Siu Blue Wind's Avatar
 
Join Date: Apr 2005
Posts: 13,419
Mentioned: 55 Post(s)
Tagged: 0 Thread(s)
Quoted: 2293 Post(s)
Liked 1,083 Times in 702 Posts
Originally Posted by cxwrench View Post
Jesus, some of the posts on here...you have no idea what the OP is trying to do or find out. C'mon people, at least try to use 4th grade grammar and post something that makes sense. It's like a sizable percentage of the members here never made it to middle school.
And of course this should be in GD, but should have been posted in 'bicycle mechanics'.
This is a world wide site where people from all over the world are welcome. Have you considered that there may be language barriers? Or internet translation issues?

And if not, remember,not everyone is as perfect as you.
__________________
Originally Posted by making View Post
Please dont outsmart the censor. That is a very expensive censor and every time one of you guys outsmart it it makes someone at the home office feel bad. We dont wanna do that. So dont cleverly disguise bad words.
Siu Blue Wind is offline  
Old 04-29-22, 12:02 PM
  #20  
shelbyfv
Banned.
 
Join Date: Jun 2007
Location: TN
Posts: 10,088
Mentioned: 32 Post(s)
Tagged: 0 Thread(s)
Quoted: 2990 Post(s)
Liked 3,836 Times in 1,972 Posts
"Thanks for trying to make people feel crappy."

Well heck, just trying to add some humor, salvage an unimaginative troll thread. I'll delete.
shelbyfv is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright © 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.