Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

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!

User Tag List

Reply
 
Thread Tools Search this Thread
Old 08-04-11, 08:11 PM   #1
mrund3rd09
Senior Member
Thread Starter
 
Join Date: Apr 2011
Location: iowa
Bikes:
Posts: 156
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
ways to help prevent flats and blowouts.

I just bought thorn resistant tubes because I'm getting sick of having to pump up every 3 days and changing tubes on the road. I also switched to presta valves (with schrader adapter) because schrader has not been so kind to me lately. I'm pretty sure there's nothing sharp in my tire. But the tires keep leaking anyway.

Are there ways to help prevent flats? like putting grease between tire and tube to try to minimize friction?
mrund3rd09 is offline   Reply With Quote
Old 08-04-11, 09:45 PM   #2
cyclist2000
Senior Member
 
cyclist2000's Avatar
 
Join Date: Sep 2009
Location: Up
Bikes: Masi (retired), Giant TCR, Eisentraut, Jamis Aurora Elite, Zullo (trainer bike), Cannondale, 84 Stumpjumper, Waterford(N+1), Tern D8 (N+1), looking for a Ti frame
Posts: 3,128
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 22 Post(s)
I pump up before each ride (only once per day), that is to prevent pinch flats
cyclist2000 is offline   Reply With Quote
Old 08-05-11, 05:13 AM   #3
CraigB
Starting over
 
CraigB's Avatar
 
Join Date: Jun 2005
Location: Indianapolis
Bikes: 1990 Trek 1500; 2006 Gary Fisher Marlin; 2011 Cannondale Synapse Alloy 105; 2012 Catrike Trail
Posts: 4,081
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You're only "pretty sure" there's nothing sharp in your tire?

You need to take the tire and tube off the wheel, go over the inside of the tire with a fine-tooth comb (not literally) to look for any embedded debris on the inside of it, like glass, wire, etc. Then you need to examine your wheel for anything like a metal burr anywhere on the rim, including around the edge of the valve hole, and look for any spots where the rim tape isn't adequately covering the ends of the spokes.
CraigB is offline   Reply With Quote
Old 08-05-11, 05:32 AM   #4
bkaapcke
Senior Member
 
Join Date: Jul 2005
Bikes:
Posts: 3,232
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 13 Post(s)
Two things have helped me out. Run Schwalbe tires and inspect the tires after each ride. Remove anything stuck in the tires. It may go flat then and there, but at least you can fix it at home. bk

Last edited by bkaapcke; 08-12-11 at 08:10 PM.
bkaapcke is offline   Reply With Quote
Old 08-05-11, 06:59 PM   #5
worldtraveller
worldtraveller
 
worldtraveller's Avatar
 
Join Date: Jun 2011
Location: Ontario Canada
Bikes: 92 Specialized Rockhopper, 96 Maxim, 2006 Argon 18 roadbike
Posts: 352
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
TAke the advice of what the others guys said on here. I once had same problems.

Make sure you are using the correct size tube for tire, and correct size tire for rim.

Then yes, make sure rim in side after u take off tire is free from any debris

make sure no spokes from inside are poking through, make sure u use rim strips or have something over top of them

Inflation of tires, make sure they are at recommend PSI

on my road I use between 95 to 105 PSI, never had a problem since, tires should be hard hard

i have ridden over stones before on road without a problem
so try that and let us know
worldtraveller is offline   Reply With Quote
Old 08-06-11, 01:45 AM   #6
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 22,043
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 1096 Post(s)
Thorn resistant tubes + some substantial tires saw me OK on a 6 month tour from one ,

SW coast, of Eire to the other end north of Scotland with out a single puncture.

But I kept the pressure up to 6 bar .. every day

got heavier rolling resistance.. quickly , when the PSI fell below that.

Last edited by fietsbob; 08-06-11 at 01:49 AM.
fietsbob is online now   Reply With Quote
Old 08-07-11, 09:44 AM   #7
goagain
Senior Member
 
Join Date: May 2011
Bikes:
Posts: 270
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I was told by the BS that it is not abnormal to need to add a little air each week. Are the tires losing lots of air every three days?
How often are you having flats?
goagain is offline   Reply With Quote
Old 08-07-11, 09:48 AM   #8
Cyclomania
Senior Member
 
Cyclomania's Avatar
 
Join Date: Jul 2011
Location: American SPacifNorthWest. PDX
Bikes: American Eagle, Nishiki.Semipro. Great bike.
Posts: 463
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I know this stuff puts more weight on one's tire, but...

Mr. Tuffy. I swear, haven't had a flat in years!

Last edited by Cyclomania; 08-07-11 at 08:46 PM.
Cyclomania is offline   Reply With Quote
Old 08-07-11, 10:41 AM   #9
Doug5150
Senior Member
 
Join Date: May 2005
Location: IL-USA
Bikes:
Posts: 1,729
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 29 Post(s)
I am not a recognized expert, but-
Quote:
Originally Posted by mrund3rd09 View Post
I just bought thorn resistant tubes because I'm getting sick of having to pump up every 3 days and changing tubes on the road.
Your tube has a hole in it, and your tire might have something sticking into it too.
Do you know the trick of holding an inflated tube underwater to spot tiny holes? You pump the tube up until it's pretty fat--like double the tire's usual diameter, and then section-by-section, hold it under water in a bucket of water and look for air bubbles. Another variation is dunking it in a bucket of water with some dishwashing detergent added and then pulling it out, because tiny soap bubbles will form wherever there's a hole. If you use either method and the valve is leaking, you can even see that.

Quote:
I also switched to presta valves (with schrader adapter) because schrader has not been so kind to me lately.
I've never seen that Presta, Shcrader or Woods ever made any difference in a tire holding air, as long as the valve was working properly.

What I HAVE seen though is that people with Schrader valves are too lazy to pump up their own tires, so they go by a gas station and use the air pump there--and that's bad to do. The air hose gets laid on the ground, and the air chuck gets dirty. When you use it to fill your tires, it blows dirt into the valve seat, which causes slow leaks. It's not such an issue with a car tire due to their large volume, bit it is easily an issue with a much-smaller higher-pressure bicycle tire.

Keep your air valves clean! Pump up your own tires, using your own [clean] pump!

Quote:
I'm pretty sure there's nothing sharp in my tire. But the tires keep leaking anyway.
Do the air-bubble test of the tube, and carefully inspect & rub your fingers around the inside of the tire to check for anything sticking through it...

Quote:
Are there ways to help prevent flats? like putting grease between tire and tube to try to minimize friction?
I've never ever heard of a flat caused this way, so I doubt you would accomplish much by doing it.

What you can do is switch to more-puncture-resistant tires.
There's a few different ways to do that: there's thin-kevlar tires, there's thick-rubber tires, there's rim strips like Mr Tuffy, and there's tire sealant like Slime. Any of these has advantages and disadvantages. I like thick rubber tires myself, but they are heavy & slow.

Lastly, one thing I see a lot of casual bicyclists doing is they ride in the gutter of the street. They do this because they're not used to riding next to car traffic, and so they want to try to stay as far from passing cars as possible. That means they end up riding in the gutter all the time, and the gutter is where all the screws, nails and glass bits end up. And then they get flat tires all the time, and wonder why.... If you need to be able to ride in gutters like this, then you will NEED a bomb-proof tire setup, there's no way around it. But even so, when riding a bicycle on pavement, you should generally keep the tires on clean pavement. If that means riding a foot into the traffic lane so cars have to swerve around you, then that's what you do.
Doug5150 is offline   Reply With Quote
Old 08-07-11, 11:29 AM   #10
buelito
train safe
 
buelito's Avatar
 
Join Date: Dec 2005
Location: Reston, VA
Bikes:
Posts: 801
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I think all tubes will lose 5-10% per day... I pump up my tires before every ride (well- only in the morning on my commuter), I invariably have to pump in 20-30 lbs of pressure to 'top them off'. I have been doing this for a LOOONNNNG time.

train safe-
buelito is offline   Reply With Quote
Old 08-07-11, 11:35 AM   #11
geo8rge
Senior Member
 
Join Date: Mar 2006
Bikes:
Posts: 2,012
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by mrund3rd09 View Post
I just bought thorn resistant tubes because I'm getting sick of having to pump up every 3 days and changing tubes on the road. I also switched to presta valves (with schrader adapter) because schrader has not been so kind to me lately. I'm pretty sure there's nothing sharp in my tire. But the tires keep leaking anyway.

Are there ways to help prevent flats? like putting grease between tire and tube to try to minimize friction?
Marking the side of the tire and tube with chalk or crayon after a flat, will permit you to determine exactly where on the tire the problem is. Try new tires.
__________________
2000 Montague CX, I do not recommend it, but still ride it.
Strida 3, I recommend it for rides < 10mi wo steep hills.
2006 Rowbike 720 Sport, I recommend it as an exercise bike.
1996 Birdy, Recommend.
Wieleder CARiBIKE (folding), decent frame.
geo8rge is offline   Reply With Quote
Old 08-07-11, 11:39 AM   #12
Sixty Fiver
Bicycle Repair Man !!!
 
Sixty Fiver's Avatar
 
Join Date: Sep 2007
Location: YEG
Bikes: See my sig...
Posts: 27,264
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 10 Post(s)
Run quality tyres at the proper pressure and stay out of the gutter.

This is usually all one needs to do to minimize flats... if you live / ride in thorn country or have to deal with a little or a lot of glass you might look at tougher tyres / liners.
Sixty Fiver is offline   Reply With Quote
Old 08-07-11, 11:48 AM   #13
jezmellors
Senior Member
 
Join Date: Jan 2011
Location: South Yorkshire, England.
Bikes: Colnago CX-1 Record 11sp. Carbon Epic expert 29er, Claud Butler Dalesman. Proflex X-px Works, Cougar 653. KHS Montana Pro, Hercules Alassio. Ammoco Monte Carlo F/SS. Corratec Superbow Fun 29er. Claud Butler Midas. Kenisis T2. Peugeot Perthus.
Posts: 245
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I once had a brand new tube that leaked really slowly, i topped it up a few times before i decided something was wrong. I couldn't figure out where it was leaking from until i held it under water and it turned out to be the Presta valve which hadn't been assembled properly, i ended up using an adjustable wrench to tighten the inner part of the valve into the outer part and that sorted it.
jezmellors is offline   Reply With Quote
Old 08-08-11, 04:05 AM   #14
Northwestrider
Senior Member
 
Northwestrider's Avatar
 
Join Date: Apr 2006
Location: Gig Harbor, WA
Bikes: Surly Long Haul Trucker, Gary Fisher Hoo Koo E Koo, Dahon Mu P 24 , Bacchetta Strada, Rodriguez Tandem, Wheeler MTB
Posts: 2,453
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 22 Post(s)
Proper inflation, quality rim tape, keep the knurled knob on a presta valve loose or just remove it, of course closely inspect the inside of the tire for objects, and IMO it's important to take the lane whenever its possible.
Northwestrider is offline   Reply With Quote
Old 08-08-11, 08:59 AM   #15
chewerson
Junior Member
 
Join Date: Aug 2011
Bikes:
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Tube size

Hi guys,
First time poster so forgive me if this is way to obvious a query, thought it better to post in here than start a new thread.

I recently got an old road bike and have started taking it on long(er) journeys. Previous bike being an antique all steel Raleigh Roadster.

New bike has schwalbe blizzard sport tires and yesterday I got a flat with no pump, repair kit or tube to hand. Lesson learned.

I can get the tube replaced in a store but that's no good on a Sunday evening in the middle of nowhere.

I am going to start carrying repair kit, spare tubes etc but was hoping someone could recommend a place to get tubes online -and tell me what size I need.

I am in Ireland but UK suppliers would be just as useful.
cheers
chewerson is offline   Reply With Quote
Old 08-08-11, 10:04 AM   #16
coldfeet
Senior Member
 
coldfeet's Avatar
 
Join Date: Dec 2007
Bikes:
Posts: 2,119
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by chewerson View Post

I can get the tube replaced in a store but that's no good on a Sunday evening in the middle of nowhere.

I am going to start carrying repair kit, spare tubes etc but was hoping someone could recommend a place to get tubes online -and tell me what size I need.

I am in Ireland but UK suppliers would be just as useful.
cheers
Ummm, no, can't tell you what size. What does it say on the side of the tire?

Last edited by coldfeet; 08-08-11 at 10:16 AM.
coldfeet is offline   Reply With Quote
Old 08-09-11, 04:07 AM   #17
jezmellors
Senior Member
 
Join Date: Jan 2011
Location: South Yorkshire, England.
Bikes: Colnago CX-1 Record 11sp. Carbon Epic expert 29er, Claud Butler Dalesman. Proflex X-px Works, Cougar 653. KHS Montana Pro, Hercules Alassio. Ammoco Monte Carlo F/SS. Corratec Superbow Fun 29er. Claud Butler Midas. Kenisis T2. Peugeot Perthus.
Posts: 245
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Ebay is pretty good or Chain Reaction usually do free postage and are quick (I use them). The size of the tube depends on the size of the tyre, as above, it will say the size of the tyre on the side of it and you need to buy a tube according to that, although there is usually some leeway with tubes and they are usually described as being suitable for a range of sizes. eg. 26 X 1.5 - 2.0
jezmellors is offline   Reply With Quote
Old 08-09-11, 07:08 AM   #18
Jim from Boston
Senior Member
 
Jim from Boston's Avatar
 
Join Date: May 2008
Bikes:
Posts: 4,956
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 96 Post(s)
Quote:
Originally Posted by Doug5150 View Post
I ... Do the air-bubble test of the tube, and carefully inspect & rub your fingers around the inside of the tire to check for anything sticking through it...
I once read of an alternative technique to checking with your finger inside of the tire to look for debris, that is to use a cotton ball which will snag on anything sharp. Personally, I just use my finger though.
Jim from Boston is offline   Reply With Quote
Old 08-09-11, 01:38 PM   #19
Keith99
Senior Member
 
Keith99's Avatar
 
Join Date: Apr 2005
Bikes:
Posts: 5,866
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Doug5150 View Post
I am not a recognized expert, but-

Your tube has a hole in it, and your tire might have something sticking into it too.
Do you know the trick of holding an inflated tube underwater to spot tiny holes? You pump the tube up until it's pretty fat--like double the tire's usual diameter, and then section-by-section, hold it under water in a bucket of water and look for air bubbles. ....
A small but significant add on to this is that the decal on the tire should line up with the valve when yuo put the tires on. This is so when you hold an inflated tire underwater and find a slow leak you can line it up with the tire and search the small area carefully until you find anything in the tire.

3 times I have picked up a piece of steel belt from a car tire. Only once did I find it the first time. One other time I made it a mile or so before a second flat and then spent a half hour searching until I found it. The Third time was on a ride out to Acton and the general store where we stopped fro lunch was kind enough to let me use theit sink to chek for leaks, found it, checked the tire and found nothing. Changed the tube, pumped it up, finished the ride, 40 more miles at least. Flat the next morning.

I've always thought in this last case the original flat was because of crossing railroad tracks a few miles before the rest stop. Just went over one of them just right to drive it through a few millimeters. And once off the high point of the track it was back where it was before , save a fraction of a millimeter. I may have hed it in hte tire for hundreds of miles before then.

Last edited by Keith99; 08-09-11 at 01:42 PM.
Keith99 is offline   Reply With Quote
Old 08-11-11, 10:05 AM   #20
coldfeet
Senior Member
 
coldfeet's Avatar
 
Join Date: Dec 2007
Bikes:
Posts: 2,119
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by Jim from Boston View Post
I once read of an alternative technique to checking with your finger inside of the tire to look for debris, that is to use a cotton ball which will snag on anything sharp. Personally, I just use my finger though.
Yes, but I stopped doing that and using cotton balls after reading the story of the bike mechanic who jabbed her finger on something and found out it was a snapped off hypodermic! The cotton also is better at finding those tiny little slivers that are impossible to see.
coldfeet is offline   Reply With Quote
Old 08-12-11, 05:27 AM   #21
berner
Senior Member
 
Join Date: May 2010
Location: Bristol, R. I.
Bikes: Specialized Secteur, old Peugeot
Posts: 2,397
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 34 Post(s)
A tip from a racer known for his high speed descents: Since roads are full of glass bits, many flats or crashes can be avoided by checking for glass shards before having the flat. The routine is to let most of the air out of your tires before the ride, then examine the tire by pinching to open up minor cuts. By doing this, a glass sliver can be seen in a cut that otherwise would not be visible. I've begun to do this and from time to time will be able to pick out glass slivers that would inevitably cause a flat eventually.
berner is offline   Reply With Quote
Old 08-12-11, 06:55 AM   #22
CraigB
Starting over
 
CraigB's Avatar
 
Join Date: Jun 2005
Location: Indianapolis
Bikes: 1990 Trek 1500; 2006 Gary Fisher Marlin; 2011 Cannondale Synapse Alloy 105; 2012 Catrike Trail
Posts: 4,081
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
When I started riding in the 1970s it was considered good practice to clean your tires with the palm of your cycling gloves while riding. I don't hear much about people doing this anymore, but I still do it. If I can't avoid a patch of glass or other debris (cinders can be sharp enough on their edges to cause flats, too), as soon as I'm through it, I'll lean forward carefully while riding and let my palm rub along the front tire for three or four revolutions of the wheel. I do the same thing on the rear, but even more carefully (it's easy to let the friction between the tire and palm force your hand in between the tire and the seat tube, something you do not want to have happen).
CraigB is offline   Reply With Quote
Old 08-12-11, 11:06 AM   #23
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 22,043
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 1096 Post(s)
Re: tube size
Quote:
What does it say on the side of the tire?
chewerson,
I thought Eire was a country of Writers and Readers
fietsbob is online now   Reply With Quote
Old 08-13-11, 01:49 AM   #24
timtim2008
Senior Member
 
Join Date: Aug 2011
Location: Atlanta, GA
Bikes: Schwinn Searcher E8
Posts: 53
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
slimeee
timtim2008 is offline   Reply With Quote
Old 08-13-11, 04:22 PM   #25
nathan.johnson
Senior Member
 
nathan.johnson's Avatar
 
Join Date: Jul 2011
Location: Tucson
Bikes: 2010 Specialized Allez Elite
Posts: 273
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by CraigB View Post
When I started riding in the 1970s it was considered good practice to clean your tires with the palm of your cycling gloves while riding...
If I accidently ride over some glass, I make sure to clean the tires. But I'll usually dismount to do it.
nathan.johnson is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 09:45 PM.