puchfinnland

I got a sweet contental sport 1000 on the front and today I got a flat,

after patching the tube and putting it back together I noticed the sidewall has a puncture and maybe 1mm round hole showing the tube,

I was thinking of taking some fabric and gluing it inside the tire with tire cement.
not my tire but this brand

gomango

Only as a temp. fix.

Stuck a dollar bill in the side and filled the tube.

Reinstalled on wheel and limped home.

I threw the tire away when I returned home.

I personally would never ride a tire with this problem.

noglider 

Some have done this with success. I've tried but never succeeded.

Amesja

1mm is pretty darn small. I wouldn't think the sidewall fabric would have been damaged much around the hole with that small of an opening. Lots of threads around it to hold it as long as you could keep the tube from blowing out through it. I think I'd try it with a few layers of silk fabric glued in over time with patch-kit rubber cement.

Then again I'm cheap. Keep an eye on it and it probably will be fine. I'm not that afraid of a blowout anyhow. They will happen from time to time on any tire. It's not like it is THAT big of a deal.

wahoonc

Crap shoot... I have fixed tires like that an have gotten another .5-500 miles out of them. Personally given the price of a new tire versus the inconvenience of having to walk home, I would probably replace it.

Aaron

vjp

I have used Shoe Goo to repair a cut in the side of a tubular (it did not cut the tube) and it worked fantastic. Your method of doing it from the inside would work even better.

Shoe Goo ftw!

noglider 

I have a small length of duct tape in my tool bag to get me home in case it helps. I haven't done such a repair on the road, but I figure one day, it will come in handy.

BluesDaddy

Disclaimer: I am a super-cheapskate and not much of a worrier.

When I was car-free back in my early 20s, I probably did 100 miles/week on city streets going to school and work. One day I hit a metal shard that sliced the sidewall of my Specialized Nimbus 26X1.5 tire. The cut was about 4mm long. I booted the tire with a dollar bill and installed my spare tube to get to school. That night I cut a piece of plastic from a milk jug and taped it inside the tire with duct tape. I rode that tire for at least another year with no problems. It got thrown away when I loaned the bike to a friend so he could do the MS150 and the inspector failed the tire and made him buy a new one. That really burned me because I was treating it like an experiment to see how long it would last.

I would only advise replacing your tire if you go high speed or use high pressure. With a city slick, no problem.

dbakl

Back in my starving college student days, we'd try anything to fix a sewup so we could keep riding it. For a cut in the casing we'd cut a rounded patch of artist's canvas and heavily contact cement it inside the tear. I probably wouldn't bother with a clincher, though you could do the same thing: you can boot it with anything you find, even a dollar bill from your wallet on the road.

ThermionicScott 

I'd be interested to hear how it goes. I booted a tire with two layers of duct tape and got 200 miles out of it before I decided to replace the tire:



https://www.bikeforums.net/showthread...1#post14423939

- Scott

bigbossman 

I've got enough things on my mind when I'm descending at 40mph...... that's not ever, ever gonna be one of them.

auchencrow

+1

Plus I'm too much of a cheap skate to want to pay for a full set of dentures and a nose job

Chrome Molly

I had the exact same problem occur this week. Used some duct tape to limp home, then tried using a patch kit on the inside of the tire sidewall. The hole was maybe 2mm. Got a flat again within 3 miles. The patch did not hold, and you couldn't tell that the patch moved around until the newly punctured tube was removed. New tires have been ordered, as I then needed some more spare tubes anyhow.

zonatandem

Put a piece of Tyvek inside the tire and then hold it in place with duct tape.

mapleleafs-13 

shoo goo was great for a lot of stuff. When i skateboarded back in the day we'd use it to make our shoes last longer for skateboarding. That's when we were broke kids, then when a few of us got sponsored that was the end of that. i still use shoe good to fix random stuff when i need a filler or to stick something together, it's tough stuff.

puchfinnland

Denim!

this morning I cut a piece of Denim out, saturated it in tire cement-both sides, then placed it inside the tire.
mounted it up and inflated it up (80 pounds) looks great, I dont see any denim in the hole- now out for a 80km ride.

dddd

It depends on a lot of variables as to whether a tire SHOULD be patched and then used for serious mileage:

First off, the size of the hole, and whether there is trauma to the outer ply that extends well beyond the hole itself?

Secondly, is the tire a cheap tire with coarse casing, or a fine tire with "hi-density", high-tpi casing, which helps greatly to resist spreading.

Thirdly, rider weight and thus tire pressure. Modest pressures GREATLY help to make a repair more forgiving and reliable.

Fourth, how the tire is repaired. I only use adhesive rim tape to boot a tire.
The boot/patch MUST remain in place diring installation, inflation and riding.
Adhesive tapes that are not intended for use against inner tubes OFTEN have adhesives which contain problematic "plasticizer" additives, which are akin to oils. These may leach into the tube's rubber along the edge of the tape, causing a slit-type failure where the tube abruptly splits.
I have even encountered "rim tape" used as an OEM rim strip which was not designed for the job and caused such tube failure, and I have many times replaced tubes where someone had used common adhesive tapes to secure a Mr Tuffy-type rim liner at the overlap joint.

I run my 23mm tires at 90-95psi and have patched many small casing holes with a short strip of Velox rim tape. I have never had a small cut spread to the point where the tire bulged unevenly or threatened to allow the tube to bulge out of the hole.

I always run the strip of rim tape perpendicular to any cut.
For emergency use, I have wrapped the strip of tape across the inside of the tire around the beads on both sides of the tire, which anchors both ends of the tape between the bead and the rim itself. This last repair method typically causes a slight sunken-in "band" around the inflated tire where the tape apparently doesn't allow the tube to expand forcefully against the inside of the tire! Such a repair can hold back a lot of pressure and will contain a much larger cut.
Note that Velox does not immediately take much of a grip on the tire's inside surface, but is a very stiff and stretch-resistant fabric which still has enough "give" to flex with the tread without causing any discernable thump while riding.

Oh, and lastly, don't try to get mileage out of an aged tire, particularly one that has been repaired.
By "aged", I mean one that shows outer-ply weathering where the sidewall of the tire is showing any bare casing threads through "evaporated" sidewall rubber. Such tires are prone to bulge-out and blow-out failure, especially at higher pressures.

puchfinnland

my tire looks very healthy, and the rimtape sounds like a good fix also

there is no bulge on the tire, so im off in a few minutes, cold front ripped thru here last night so should be a cool ride

marley mission

your tires are the only part of the bike that actually touches the road - if you are gonna spend any money at all on a bike - it should be here

Mercian Rider

Yes, but only to get home. I keep a square cut from an old silk tubular tire with me for that purpose. Seen dollar bill work for others.

puchfinnland

I rode over 70kms today and the denim patch is perfect
thank you

my wife was coming home today and we had a deal we would meet in the town 80kms away, she left early and cheated me of 10 kms-

tashi

Gorilla tape works for me, most of the time. I use two layers, the first perpendicular to the cut, the next layer perpendicular to that. For most tires the Gorilla tape is strong enough and sticks well enough that the tire doesn't bulge weird or anything where the repair is.

Reynolds 

I have used duct tape too but only to get home, replaced the tire afterwards.