Go Back  Bike Forums > Bike Forums > General Cycling Discussion
Reload this Page >

My bike feels bumpy but the shop can't find anything wrong with it

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!

My bike feels bumpy but the shop can't find anything wrong with it

Old 06-05-21, 03:41 PM
  #1  
Full Member
Thread Starter
 
DreamRider85's Avatar
 
Join Date: Jul 2015
Posts: 496
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 379 Post(s)
Liked 24 Times in 14 Posts
My bike feels bumpy but the shop can't find anything wrong with it

Yea, this one is an annoying problem. A couple of weeks ago while on a ride, I started to notice my bike felt bumpy. When I'm riding well-paved roads, I still feel like I'm riding bumpy roads. I'm stumped. It feels like it is the front tires. I took my bike into the shop twice and the manager doesn't seem to think anything is off. But I know that something doesn't feel right. I can feel the bike vibrating harder. I thought the tires might have been worn but he said they look fine. What else could it be? Shock absorption? I'm not pumping up the tires any more than usual. But it doesn't feel right. The bike actually feels lighter, but it feels like there's something making the front tires bump hard. He even rode it for a minute and said it felt pretty fine to him. He said if I want I could schedule a time for him to look at it for a longer period of time. But do you have any suggestions? Bikes cannot just feel weird all of a sudden if there's nothing wrong with it, right?
DreamRider85 is offline  
Old 06-05-21, 03:57 PM
  #2  
Cheerfully low end
 
ofajen's Avatar
 
Join Date: Jun 2020
Posts: 1,984
Mentioned: 5 Post(s)
Tagged: 0 Thread(s)
Quoted: 647 Post(s)
Liked 1,054 Times in 673 Posts
Originally Posted by DreamRider85
Yea, this one is an annoying problem. A couple of weeks ago while on a ride, I started to notice my bike felt bumpy. When I'm riding well-paved roads, I still feel like I'm riding bumpy roads. I'm stumped. It feels like it is the front tires. I took my bike into the shop twice and the manager doesn't seem to think anything is off. But I know that something doesn't feel right. I can feel the bike vibrating harder. I thought the tires might have been worn but he said they look fine. What else could it be? Shock absorption? I'm not pumping up the tires any more than usual. But it doesn't feel right. The bike actually feels lighter, but it feels like there's something making the front tires bump hard. He even rode it for a minute and said it felt pretty fine to him. He said if I want I could schedule a time for him to look at it for a longer period of time. But do you have any suggestions? Bikes cannot just feel weird all of a sudden if there's nothing wrong with it, right?
Maybe the tire is not seated properly on the rim at all points? Trying holding the front wheel off the ground and spinning the tire. Look along the outside tire surface along the direction of travel and see if you see a place where some sort of lump or change in shape comes past. If so, check to see if the tire is seated in the proper way at that point.

I’d have assumed a bike shop tech would check for this right off, so don’t get your hopes up. Also, this would usually be something that was this way from the time the tire was last installed. Still, I hope this helps.

Otto
ofajen is offline  
Old 06-05-21, 04:31 PM
  #3  
Senior Member
 
79pmooney's Avatar
 
Join Date: Oct 2014
Location: Portland, OR
Posts: 12,985

Bikes: (2) ti TiCycles, 2007 w/ triple and 2011 fixed, 1979 Peter Mooney, ~1983 Trek 420 now fixed and ~1973 Raleigh Carlton Competition gravel grinder

Mentioned: 131 Post(s)
Tagged: 0 Thread(s)
Quoted: 4864 Post(s)
Liked 4,012 Times in 2,608 Posts
Damage to the tire casing (often from hard pothole hits and the like) can show as lumps like an early hernia. An old, tired tire can do the same, as can some really cheap ones. Probably not what you are seeing, but rule it out now as that damaged casing is a big, un-repairable blowout waiting to happen. (With the tire at riding pressure, spin the wheel and look for an odd bump to go by or the center strip of the tread suddenly taking a jag to one side like it was hand wrapped around the tire and the employee got all the way around but missed by an 1/8th inch and had a 1/4" to get it to meet up. Most tires are made with cord layers crossing on diagonals. You can damage a middle layer and be unable to see any damaged cords on the outside or inside. But with the tire blown up, everything stretches. Except where the cord is broken, the remaining cord lacks support and so shifts a little.)

Edit: actually I like Otto's idea of a poorly seated bead. I spin the wheel after mounting a tire and look for three things - the center tread to wander up and down (I sight past the tire at a stationary object. Maybe hold the wheel vertically and look over the top at the gutter of a house.) Also I look for variations of the distance between the molded line and the rim on each side. (Virtually all tires have a thin line of rubber molded in that sits less than a millimeter outside the rim. That line is exactly parallel to the bead.)

Last edited by 79pmooney; 06-05-21 at 04:40 PM.
79pmooney is offline  
Old 06-05-21, 06:15 PM
  #4  
Banned
 
Join Date: Feb 2008
Location: Mississauga/Toronto, Ontario canada
Posts: 8,721

Bikes: I have 3 singlespeed/fixed gear bikes

Mentioned: 30 Post(s)
Tagged: 0 Thread(s)
Quoted: 4227 Post(s)
Liked 2,490 Times in 1,286 Posts
If a bike shop manager couldn't find a problem then it's probably your imagination.
wolfchild is offline  
Likes For wolfchild:
Old 06-05-21, 06:31 PM
  #5  
Senior Member
 
katsup's Avatar
 
Join Date: May 2016
Location: Southern California
Posts: 1,771

Bikes: 1995 ParkPre Pro 825 2021 Soma Fog Cutter v2 and 2021 Cotic SolarisMax

Mentioned: 15 Post(s)
Tagged: 0 Thread(s)
Quoted: 608 Post(s)
Liked 560 Times in 318 Posts
Ask the bike shop to put a spare front wheel on your bike (or borrow a friend's) and test ride it to see if you notice a difference. You can isolate from there.
katsup is offline  
Old 06-05-21, 06:32 PM
  #6  
Senior Member
 
Troul's Avatar
 
Join Date: Oct 2013
Location: Mich
Posts: 7,526

Bikes: RSO E-tire dropper fixie brifter

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Liked 3,092 Times in 1,973 Posts
lower the psi 10-15% & see how much it changes.
__________________
-Oh Hey!
Troul is offline  
Likes For Troul:
Old 06-05-21, 06:39 PM
  #7  
Full Member
 
Join Date: Jul 2010
Posts: 288
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 66 Post(s)
Liked 6 Times in 5 Posts
Does the front tire bump ONCE per revolution? If so, could it be the spoke tension?
GetUpnGo is offline  
Likes For GetUpnGo:
Old 06-05-21, 06:40 PM
  #8  
Senior Member
 
CliffordK's Avatar
 
Join Date: Nov 2014
Location: Eugene, Oregon, USA
Posts: 27,548
Mentioned: 217 Post(s)
Tagged: 0 Thread(s)
Quoted: 18429 Post(s)
Liked 4,548 Times in 3,379 Posts
Is this a rhythmic bump everywhere, even on smooth cement... or just a jarring rattle?

In the first case, it could be a tire/wheel issue, for example a bead not seated, wheel dented or out of true, skid mark, etc. I once tried a full sized Park Boot, and could feel it bump.

In the second case of a rattle, could be tire pressure, or even in the head. Perhaps thicker bar tape or gloves? Or a headset issue?
CliffordK is offline  
Old 06-05-21, 06:41 PM
  #9  
Senior Member
 
ridelikeaturtle's Avatar
 
Join Date: Nov 2015
Location: Dublin, Ireland
Posts: 1,268

Bikes: Bianchi Ti Megatube; Colnago Competition; Planet-X EC-130E; Klein Pulse; Amp Research B4; Litespeed Catalyst; Trek Y11

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 605 Post(s)
Liked 480 Times in 260 Posts
swap w/a mates tyre for 5 mins.
ridelikeaturtle is offline  
Old 06-05-21, 06:44 PM
  #10  
Senior Member
 
ridelikeaturtle's Avatar
 
Join Date: Nov 2015
Location: Dublin, Ireland
Posts: 1,268

Bikes: Bianchi Ti Megatube; Colnago Competition; Planet-X EC-130E; Klein Pulse; Amp Research B4; Litespeed Catalyst; Trek Y11

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 605 Post(s)
Liked 480 Times in 260 Posts
It's things like this - which are real, and a pain in the hole - where I find all the crap I've hoarded over the years, to be invaluable.

My neighbor's bike needed a quick clean and general look-over... instantly I see he's got 3 spokes BROKEN on his front wheel.

Yeah, I've got a old 26" mtb wheel in the shed.

Swap out the front wheel for something else you know works, and go from there.
ridelikeaturtle is offline  
Old 06-05-21, 07:55 PM
  #11  
Senior Member
 
cxwrench's Avatar
 
Join Date: Jul 2013
Location: Nor-Cal
Posts: 3,767

Bikes: lots

Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 1958 Post(s)
Liked 2,932 Times in 1,489 Posts
Originally Posted by GetUpnGo
Does the front tire bump ONCE per revolution? If so, could it be the spoke tension?
No, it could not be that.
cxwrench is offline  
Old 06-05-21, 08:42 PM
  #12  
Full Member
Thread Starter
 
DreamRider85's Avatar
 
Join Date: Jul 2015
Posts: 496
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 379 Post(s)
Liked 24 Times in 14 Posts
Originally Posted by CliffordK
Is this a rhythmic bump everywhere, even on smooth cement... or just a jarring rattle?

In the first case, it could be a tire/wheel issue, for example a bead not seated, wheel dented or out of true, skid mark, etc. I once tried a full sized Park Boot, and could feel it bump.

In the second case of a rattle, could be tire pressure, or even in the head. Perhaps thicker bar tape or gloves? Or a headset issue?

It's more like a jarring rattle. Would you recommend higher pressure? I tried with 95 psi as recommended and feel it. If I go higher, I still feel it.
DreamRider85 is offline  
Old 06-05-21, 08:53 PM
  #13  
Senior Member
 
CliffordK's Avatar
 
Join Date: Nov 2014
Location: Eugene, Oregon, USA
Posts: 27,548
Mentioned: 217 Post(s)
Tagged: 0 Thread(s)
Quoted: 18429 Post(s)
Liked 4,548 Times in 3,379 Posts
Originally Posted by DreamRider85
It's more like a jarring rattle. Would you recommend higher pressure? I tried with 95 psi as recommended and feel it. If I go higher, I still feel it.
The less tire pressure the more cushion you get.

What is your weight?
What size of tires do you have on your bike?
Tubes or Tubeless?

You really need just a bit more pressure than what is needed to keep the tires from bottoming out on bumps, although there may be a pressure/energy curve, so too low pressure and it takes power, and too much, and it also robs power.
CliffordK is offline  
Old 06-05-21, 08:54 PM
  #14  
Full Member
Thread Starter
 
DreamRider85's Avatar
 
Join Date: Jul 2015
Posts: 496
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 379 Post(s)
Liked 24 Times in 14 Posts
Originally Posted by wolfchild
If a bike shop manager couldn't find a problem then it's probably your imagination.

You really believe that?
DreamRider85 is offline  
Likes For DreamRider85:
Old 06-06-21, 05:17 AM
  #15  
Senior Member
 
Join Date: May 2018
Posts: 1,680
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 980 Post(s)
Liked 776 Times in 402 Posts
Originally Posted by DreamRider85
It's more like a jarring rattle. Would you recommend higher pressure? I tried with 95 psi as recommended and feel it. If I go higher, I still feel it.
Pretty hard to believe that the shop manager did not notice a ‘jarring rattle’ but I would definitely have another rider take it for a quick spin
downhillmaster is offline  
Old 06-06-21, 08:25 AM
  #16  
Disco Infiltrator
 
Darth Lefty's Avatar
 
Join Date: May 2013
Location: Folsom CA
Posts: 13,464

Bikes: Stormchaser, Paramount, Tilt, Samba tandem

Mentioned: 72 Post(s)
Tagged: 0 Thread(s)
Quoted: 3133 Post(s)
Liked 2,115 Times in 1,378 Posts
I don’t recall what kind of bike you have but if it has a suspension fork that’s another place to look. You might have engaged the lock out, if it has one, or it might be malfunctioning.
__________________
Genesis 49:16-17
Darth Lefty is offline  
Old 06-06-21, 09:02 AM
  #17  
Senior Member
 
Motorazr's Avatar
 
Join Date: Apr 2021
Location: Atlanta
Posts: 59

Bikes: 2020 Specialized Diverge Elite

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 25 Post(s)
Liked 20 Times in 13 Posts
Wheel bearings is my first thought. The bearings could spin freely on a stand but randomly bump and skip under load.
Motorazr is offline  
Likes For Motorazr:
Old 06-06-21, 09:35 AM
  #18  
Senior Member
 
Join Date: Apr 2020
Posts: 71
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 30 Post(s)
Liked 17 Times in 12 Posts
Originally Posted by DreamRider85
It's more like a jarring rattle. Would you recommend higher pressure? I tried with 95 psi as recommended and feel it. If I go higher, I still feel it.
I think your tires could just be overinflated. What kind of bike and tire are you using?
y2zipper is offline  
Old 06-06-21, 10:12 AM
  #19  
Senior Member
 
Garfield Cat's Avatar
 
Join Date: Oct 2004
Location: Huntington Beach, CA
Posts: 7,085

Bikes: Cervelo Prodigy

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 479 Post(s)
Likes: 0
Liked 88 Times in 68 Posts
Perhaps a better description of the bike.

Also, how long you been riding that bike and during that time period, when did it start? I mean how long in terms of years, months, weeks, not "how long" in terms of a particular ride.

Also describe the type of riding you do.

Also, do you have all kinds of attachments on the bike? I see some posts that show riders with lots of stuff on the handlebars, lots of lights, bags, audio equipment, baskets, etc.
Garfield Cat is offline  
Old 06-10-21, 06:47 PM
  #20  
Full Member
Thread Starter
 
DreamRider85's Avatar
 
Join Date: Jul 2015
Posts: 496
Mentioned: 9 Post(s)
Tagged: 0 Thread(s)
Quoted: 379 Post(s)
Liked 24 Times in 14 Posts
Well. You'll never believe this. So the manager checked it out again and he had another manager check it out. They say nothing is wrong with it. Then I tried a spare tire from where I thought it was happening and I didn't notice a difference. We came to the conclusion it was in my head. I never in a million years thought that could be the case. But I guess it is. When I don't focus on it, the bike feels fine. But when I focus on the bumpiness, I notice it. The manager said, ''Don't worry. We've all been there.''
DreamRider85 is offline  
Old 06-10-21, 07:31 PM
  #21  
Senior Member
 
Join Date: Sep 2017
Posts: 8,047
Mentioned: 42 Post(s)
Tagged: 0 Thread(s)
Quoted: 7089 Post(s)
Liked 11,208 Times in 4,785 Posts
Originally Posted by DreamRider85
Well. You'll never believe this. So the manager checked it out again and he had another manager check it out. They say nothing is wrong with it. Then I tried a spare tire from where I thought it was happening and I didn't notice a difference. We came to the conclusion it was in my head. I never in a million years thought that could be the case. But I guess it is. When I don't focus on it, the bike feels fine. But when I focus on the bumpiness, I notice it. The manager said, ''Don't worry. We've all been there.''
wolfchild called it in post #4.
Koyote is offline  
Likes For Koyote:
Old 06-10-21, 09:03 PM
  #22  
With a mighty wind
 
Join Date: May 2015
Posts: 2,635
Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 1115 Post(s)
Liked 912 Times in 513 Posts
Sounds like you have a slightly oval wheel.
rosefarts is offline  
Old 06-10-21, 09:33 PM
  #23  
Senior Member
 
cxwrench's Avatar
 
Join Date: Jul 2013
Location: Nor-Cal
Posts: 3,767

Bikes: lots

Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 1958 Post(s)
Liked 2,932 Times in 1,489 Posts
Originally Posted by rosefarts
Sounds like you have a slightly oval wheel.
Seriously? You're just joking, right?


Right?
cxwrench is offline  
Old 06-10-21, 09:52 PM
  #24  
Bikes are okay, I guess.
 
thumpism's Avatar
 
Join Date: Jan 2015
Location: Richmond, Virginia
Posts: 6,938

Bikes: Waterford Paramount Touring, Giant CFM-2, Raleigh Sports 3-speeds in M23 & L23, Schwinn Cimarron oddball build, Marin Palisades Trail dropbar conversion, Nishiki Cresta GT

Mentioned: 69 Post(s)
Tagged: 0 Thread(s)
Quoted: 2647 Post(s)
Liked 2,451 Times in 1,558 Posts
Originally Posted by DreamRider85
It feels like it is the front tires....The bike actually feels lighter, but it feels like there's something making the front tires bump hard.
How many front tires do you have on this thing? Did you switch front tires at some point in the troubleshooting process and experience the same problem with more than one front tire? Did you swap tires on the same front wheel, or did you use one tire on the front wheel and try a second front tire on a second front wheel? Just trying to figure out the process.
thumpism is offline  
Old 06-11-21, 06:55 AM
  #25  
Expired Member
 
shelbyfv's Avatar
 
Join Date: Jun 2007
Location: TN
Posts: 11,816
Mentioned: 41 Post(s)
Tagged: 0 Thread(s)
Quoted: 3776 Post(s)
Liked 5,732 Times in 2,895 Posts
Originally Posted by DreamRider85
Well. You'll never believe this. So the manager checked it out again and he had another manager check it out. They say nothing is wrong with it. Then I tried a spare tire from where I thought it was happening and I didn't notice a difference. We came to the conclusion it was in my head. I never in a million years thought that could be the case. But I guess it is. When I don't focus on it, the bike feels fine. But when I focus on the bumpiness, I notice it. The manager said, ''Don't worry. We've all been there.''
We believe it!! Happy you got it figured out. Wonder what's the next obstacle....

Last edited by shelbyfv; 06-11-21 at 07:36 AM.
shelbyfv is offline  
Likes For shelbyfv:

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.