Go Back  Bike Forums > Bike Forums > Road Cycling
Reload this Page >

Bad to go fast over vibrations?

Notices
Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

Bad to go fast over vibrations?

Old 12-10-15, 10:02 PM
  #1  
Member
Thread Starter
 
Join Date: Nov 2015
Posts: 40
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Bad to go fast over vibrations?

Part of my path the road gets tinny bumps and causes a good amount of vibration. Is this bad to continue my speed or should I slow down a bit?

bikes got a carbon fork, 32 spoke rims that are 28mm, and the frame is aluminum ( if any of this even matters lol )
rushncrush is offline  
Old 12-10-15, 10:06 PM
  #2  
Senior Member
 
cale's Avatar
 
Join Date: Oct 2004
Location: Seattle
Posts: 3,248

Bikes: Kuota Ksano. Litespeed T5 gravel - brilliant!

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Likes: 0
Liked 4 Times in 4 Posts
I wouldn't have a problem unless it hurt. Is it hard on the headset? Probably no more than any of the other pangs and thunks it gets elsewhere.
cale is offline  
Old 12-10-15, 11:48 PM
  #3  
Senior Member
 
caloso's Avatar
 
Join Date: Jul 2002
Location: Sacramento, California, USA
Posts: 40,865

Bikes: Specialized Tarmac, Canyon Exceed, Specialized Transition, Ellsworth Roots, Ridley Excalibur

Mentioned: 68 Post(s)
Tagged: 0 Thread(s)
Quoted: 2952 Post(s)
Liked 3,106 Times in 1,417 Posts
You will be fine. Google "Paris-Roubaix."
caloso is offline  
Old 12-11-15, 04:55 AM
  #4  
Senior Member
 
kbarch's Avatar
 
Join Date: Aug 2014
Posts: 4,286
Mentioned: 21 Post(s)
Tagged: 0 Thread(s)
Quoted: 1096 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Don't slow down on the rough bit - that actually makes it worse. Slow down before you get to it, then accelerate over it. If it's an extended stretch, again, make sure that before you get to it, you're going slower than you intend to be going by the time you get to the end.

Each bump is like a tiny hill. When you accelerate, you unload the front, allowing you to sort of launch your bike over those little hills - keep going so you have a soft landing. If you slow down and load the front, you crash into the bottom of each of those little hills.
kbarch is offline  
Old 12-11-15, 05:16 AM
  #5  
Senior Member
 
Join Date: Jul 2008
Location: Minas Ithil
Posts: 9,173
Mentioned: 66 Post(s)
Tagged: 0 Thread(s)
Quoted: 2432 Post(s)
Liked 638 Times in 395 Posts
Lazyass is offline  
Old 12-11-15, 05:40 AM
  #6  
Senior Member
 
Join Date: Aug 2009
Location: Lexington, SC
Posts: 1,445

Bikes: Lynskey R240, 2013 CAAD10

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 50 Post(s)
Likes: 0
Liked 1 Time in 1 Post
You will break before the bike.
silversx80 is offline  
Old 12-11-15, 10:29 AM
  #7  
Senior Member
 
Join Date: Jul 2006
Posts: 1,114

Bikes: 2006 Raleigh Cadent 2.0, 2016 Trek Emonda ALR 6, 2015 Propel Advanced SL 2, 2000 K2 Zed SE

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 115 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by silversx80
You will break before the bike.
Every once in a while I hit a rumble strip that I thought would kill me, but I made it out alive. There's no rhyme or reason to what roads get them around here, it seems, and they can blend in pretty well on worn blacktop. My bike's survived all of them, but I have lost a bottle or two. That's like getting a year's worth of stress testing done to your frame in 2 seconds.
kc0bbq is offline  
Old 12-11-15, 10:34 AM
  #8  
Senior Member
 
Join Date: Jun 2013
Location: Bozeman
Posts: 4,094

Bikes: 199? Landshark Roadshark, 198? Mondonico Diamond, 1987 Panasonic DX-5000, 1987 Bianchi Limited, Univega... Chrome..., 1989 Schwinn Woodlands, Motobecane USA Record, Raleigh Tokul 2

Mentioned: 25 Post(s)
Tagged: 0 Thread(s)
Quoted: 1131 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by kc0bbq
Every once in a while I hit a rumble strip that I thought would kill me, but I made it out alive. There's no rhyme or reason to what roads get them around here, it seems, and they can blend in pretty well on worn blacktop. My bike's survived all of them, but I have lost a bottle or two. That's like getting a year's worth of stress testing done to your frame in 2 seconds.
Rumble strips are hilarious. Ours are made of 3-4 inch depressions that are maybe an inch deep? Accidently hitting them with your bike is extremely surprising. It's also very hard to steer out of them as you don't really have a lot of control over your bike.
corrado33 is offline  
Old 12-11-15, 03:01 PM
  #9  
Senior Member
 
ColaJacket's Avatar
 
Join Date: Apr 2015
Location: Raleigh, NC
Posts: 1,892

Bikes: Fuji Sportif 1.3 C - 2014

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by rushncrush
Part of my path the road gets tinny bumps and causes a good amount of vibration. Is this bad to continue my speed or should I slow down a bit?

bikes got a carbon fork, 32 spoke rims that are 28mm, and the frame is aluminum ( if any of this even matters lol )
How much do you weigh, and what is the pressure in the tires?

It could be that you have too much air in your tires.

GH
ColaJacket is offline  
Old 12-11-15, 03:29 PM
  #10  
Custom User Title
 
RPK79's Avatar
 
Join Date: May 2013
Location: SE MN
Posts: 11,239

Bikes: Fuji Roubaix Pro & Quintana Roo Kilo

Mentioned: 40 Post(s)
Tagged: 1 Thread(s)
Quoted: 2863 Post(s)
Likes: 0
Liked 31 Times in 14 Posts
Originally Posted by kc0bbq
Every once in a while I hit a rumble strip that I thought would kill me, but I made it out alive. There's no rhyme or reason to what roads get them around here, it seems, and they can blend in pretty well on worn blacktop. My bike's survived all of them, but I have lost a bottle or two. That's like getting a year's worth of stress testing done to your frame in 2 seconds.
We have a road around here with rumble strips that turn what would have been a great shoulder for cycling into an unusable shoulder. It's too bad since it would have been a great cycling road, but it's too busy at too high a speed with too many blind corners for me to feel safe riding in the lane.
RPK79 is offline  
Old 12-11-15, 05:45 PM
  #11  
Member
 
Mkhira2's Avatar
 
Join Date: Jan 2014
Location: Houston, TX
Posts: 28

Bikes: 2013 Cannondale SuperSix

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Your bike should hold up just fine, and wearing gloves should lessen the jarring impact your body takes from the bumps as well. The rumble strips near me are an inch deep with just an inch or two of spacing between each one. The road shoulder is typically cluttered with various puncture-potential debris, so I routinely cut across them from the shoulder to the far right road lane depending on traffic conditions. Haven't come across any issues yet.
Mkhira2 is offline  
Old 12-11-15, 06:55 PM
  #12  
Senior Member
 
OldsCOOL's Avatar
 
Join Date: Jul 2004
Location: northern michigan
Posts: 13,317

Bikes: '77 Colnago Super, '76 Fuji The Finest, '88 Cannondale Criterium, '86 Trek 760, '87 Miyata 712

Mentioned: 19 Post(s)
Tagged: 0 Thread(s)
Quoted: 659 Post(s)
Liked 595 Times in 313 Posts
Rumble strips along the roadside are insane. When grinding out a long, steep hill and you hit that hot mess at 10mph you just cant get off it quick enough.
OldsCOOL is offline  
Old 12-18-15, 04:28 AM
  #13  
Senior Member
 
Join Date: Jun 2009
Posts: 189
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
The first time I hit a rumble strip, I was reminded of how brilliant an idea the mechanical bull at my college bar was. I actually have a patch of god awful chip-seal that I made a Strava segment out of. It is currently my only KOM. Sit up a little, gear down (or up, whichever is faster, I never remember), and ride it like Boonen/Spartacus. You might even learn to like it.
momo15 is offline  
Old 12-18-15, 06:07 AM
  #14  
Full Member
 
Join Date: Sep 2013
Location: New England
Posts: 328

Bikes: Cannondale six-13

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 144 Post(s)
Liked 108 Times in 24 Posts
Such wonderful advice. In 2014 I approached some scarified pavement and I followed the advice given here. I increased my speed thinking I could bridge the bumps. As soon as I hit the rough stretch the lights went out. I woke up when they were loading me into an ambulance. A concussion, a broken collarbone and a few layers of skin later I began the process of several cat scans and multiple follow up visits to brain specialists. I found out later that both my tires exploded as soon as I hit the scarred pavement. There is no one-size-fits-all advice for these situations because anything can happen at any time. I've been riding since 1983.
Ray9 is offline  
Old 12-18-15, 11:20 AM
  #15  
Senior Member
 
dcsix's Avatar
 
Join Date: May 2015
Location: Southern California
Posts: 254

Bikes: 2011 Specialized Roubaix Comp SRAM Rival, 2008 LeMond Victoire Dura Ace, 1994 Santana Sovereign Tandem, 1986 Specialized Rockhopper Comp Shimano Deore, 1975 Raleigh Super Course Mark II

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 1 Time in 1 Post
As caloso alludes, Paris-Roubaix will prove instructive here. I recall in TV coverage this year (may have been TDF where they did some cobbles?)the talk of how Nibali met up with an old time Classics rider-forget his name but he was some kinda cobble stud from the 60's-70's I think-his advice to Nibali for riding the cobbles was to spin fast and go fast. You'll see lots of bikes on cobbles with extra brake levers at the bar tops since that's a pretty good spot for your hands on rough surfaces. I have a couple of short bridges on my usual way, one is basically made of railroad ties laid perpendicular to the road, and I've tried it at all speeds as an experiment-fast bothers me the least and gets it over with the quickest.
dcsix is offline  
Old 12-19-15, 09:01 AM
  #16  
Senior Member
 
Fiery's Avatar
 
Join Date: Oct 2010
Posts: 1,361
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 242 Post(s)
Liked 18 Times in 13 Posts
Originally Posted by Ray9
Such wonderful advice. In 2014 I approached some scarified pavement and I followed the advice given here. I increased my speed thinking I could bridge the bumps. As soon as I hit the rough stretch the lights went out. I woke up when they were loading me into an ambulance. A concussion, a broken collarbone and a few layers of skin later I began the process of several cat scans and multiple follow up visits to brain specialists. I found out later that both my tires exploded as soon as I hit the scarred pavement. There is no one-size-fits-all advice for these situations because anything can happen at any time. I've been riding since 1983.
What tires, what pressure, what rider+bike weight? Were there any longitudinal cracks in the pavement?

It may seem that anything can happen at any time, but some things are always more likely than others, depending on the situation. For example, it's not so much that you should hit rough terrain with as much speed as you can, but that you should push hard while on the rough in order to unweigh the saddle and handlebar and let the biie move under you in response to the bumps and dips.
Fiery is offline  
Old 12-19-15, 09:11 AM
  #17  
ka maté ka maté ka ora
 
pdedes's Avatar
 
Join Date: Oct 2008
Location: wessex
Posts: 4,423

Bikes: breezer venturi - red novo bosberg - red, pedal force cg1 - red, neuvation f-100 - da, devinci phantom - xt, miele piste - miche/campy, bianchi reparto corse sbx, concorde squadra tsx - da, miele team issue sl - ultegra

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 25 Post(s)
Likes: 0
Liked 3 Times in 3 Posts
whether your jackhammer is set to fast or slow, it's still a jackhammer
pdedes is offline  
Old 12-19-15, 09:43 AM
  #18  
Senior Member
 
wphamilton's Avatar
 
Join Date: Apr 2011
Location: Alpharetta, GA
Posts: 15,280

Bikes: Nashbar Road

Mentioned: 71 Post(s)
Tagged: 0 Thread(s)
Quoted: 2934 Post(s)
Liked 341 Times in 228 Posts
"Paris-Roubaix." Aka "The Hell of the North" with frequent mechanicals and punctures. That's not very comforting!

But short of rumble strips and really rough cobbles I just ride over them out of the saddle.
wphamilton is offline  
Old 12-19-15, 08:18 PM
  #19  
INSERT_TITLE_HERE
 
jtaylor996's Avatar
 
Join Date: Jul 2015
Location: DFW
Posts: 5,203

Bikes: 2016 Cannondale Synapse 105, 2016 Salsa Pony Rustler X01

Mentioned: 61 Post(s)
Tagged: 0 Thread(s)
Quoted: 3053 Post(s)
Liked 66 Times in 38 Posts
I ride a synapse. What's a bump? I don't know about these things...
jtaylor996 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
wipekitty
Road Cycling
105
09-09-17 07:18 AM
Mithrandir
Clydesdales/Athenas (200+ lb / 91+ kg)
22
05-25-12 05:07 PM
southlogan
Road Cycling
3
04-28-11 12:53 PM
Machka
Road Cycling
126
02-18-10 04:57 PM
slipknot0129
Road Cycling
48
12-14-09 03:10 PM

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


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.