Puncture repair question

BostonB

On the way to work, I managed to put a tiny shard or glass through my 26x1.5 Armadillo and tube. Only about 200k on them too. Almost instant flat. No problem I thought. Pulled out the spare tube, only to realise it had the wrong valve type, and I didn't have a connection on my pump for it. Grrrr. So put a patch on the tube and enough air into it to get back home. It made about a 1cm cut in the tyre and tube. I have no experience of high-ish pressure tyres. So my question can I keep using the tyre and tube, do I need to patch the tyre on the inside or anything. I've pumped it up to 80 tonight and will see how it is in the morning.

blorg

If it is a standard patch that you attached with vulcanising fluid presuming you did it correctly it will last as long as the rest of the tube, no need to replace.

If it is a pre-glued patch my experience says you need to change the tube as soon as is convenient (you will get anywhere between 24 hours and a month out of them.)

The tyre will probably be OK as long as the cut has not caused any bulging of the tube in that area- difficult to tell without seeing it.

BostonB

It was the type you apply the "glue" wait 5 mins then apply the patch which is foil wrapped. No idea which kind that is. No bulging as far as I can see. I'll check it again it the morning.

blorg

That's the traditional type. You should be fine then, no need to replace the tube. Pump on up to full pressure.

911sc

Only 150kms with brand new Gatorskin tyres and already got a flat:(.
As OP, the tyre is a bit damaged. After i put in new tube and inflated at 110psi, i can see the tube through the tyre, like a small bubble of 1 or 2mm diameter.

Can i patch the tyre in the inside? how?

Lumen

911sc wrote: »

Can i patch the tyre in the inside? how?

Tyre boot. Not sure they're designed for non-emergency use.

kona

911sc wrote: »

Only 150kms with brand new Gatorskin tyres and already got a flat:(.
As OP, the tyre is a bit damaged. After i put in new tube and inflated at 110psi, i can see the tube through the tyre, like a small bubble of 1 or 2mm diameter.

Can i patch the tyre in the inside? how?

Line the inside of the tyre with either duck tape, or old flat tube with the valve cut out.;)

911sc

kona wrote: »

old flat tube with the valve cut out

Thanks, Kona.
Do you actually mean the complete circonference of the tyre or just a section of old tube in around the affected area?

blorg

911sc wrote: »

As OP, the tyre is a bit damaged. After i put in new tube and inflated at 110psi, i can see the tube through the tyre, like a small bubble of 1 or 2mm diameter.

Can i patch the tyre in the inside? how?

Replace the tyre, it is done. Boots, duck tape, bits of old tyres, etc. are emergency repairs to get you home.

kona

911sc wrote: »

Thanks, Kona.
Do you actually mean the complete circonference of the tyre or just a section of old tube in around the affected area?

the complete circumferance, the tyres strength is in the sidewalls, if these are damaged forget about it, otherwise its fine.
As for the strength of it, In canada during the winter they use the technique of getting a Big Mtb tyre, screwing wood screws into it, the using a old tube and duck tape they line the back of the tyre to prevent the screws being pushed back into the inflated tube. If it works for them in ICE and with screws in the tyre im sure it will do fine for you, I still wouldnt guarantee it 100% but it will let you get some more use out of the tyre.

911sc

Thanks all.
Well, here is a shot of the tyre inflated at 110psi.
While i paid €17 for these tyres earlier this year, looks like they are now €30+. So, i would prefer fixing it if it's ok, otherwise i would put back the previous tyre as i can't buy new ones at the moment.

But from the last 2 posts, i think i may endanger my life by try to fix it,:) considering i was hitting 60+kms per hour coming down the Sally gap last week.

doozerie

I've patched up a tyre (also a GatorSkin, I think) in that state in the past by gluing a large puncture repair patch to the inside of the tyre. I used a patch from one of the thin (and cheap) rolls that you get, where you cut out a patch to whatever size you need. It worked well (on a commute bike), but obviously you just need to keep an eye on it for signs of the tube bulging its way out or something like small bits of gravel working their way in.

Something I've seen suggested before too is to put superglue into nicks in a tyre. I haven't tried it but I'd expect that it would work best where the hole is small, but it might be worth trying in your case (with something like a permanent patch acting as backing).

Ultimately though, if you are going to feel nervous using the tyre in that state, then the nerves will be as likely to cause you to come off the bike as a tyre failure itself, in which case a new tyre is about the only option. No harm giving the repair a try though - I certainly wouldn't use the tyre as it currently is, without some sort of repair work on it.

blorg

Personally I would be throwing that tyre in the bin (I have done with similar), I use superglue myself with nicks but that is a tear in the sidewall.

kona

911sc wrote: »

Thanks all.
Well, here is a shot of the tyre inflated at 110psi.
While i paid €17 for these tyres earlier this year, looks like they are now €30+. So, i would prefer fixing it if it's ok, otherwise i would put back the previous tyre as i can't buy new ones at the moment.

But from the last 2 posts, i think i may endanger my life by try to fix it,:) considering i was hitting 60+kms per hour coming down the Sally gap last week.

throw em out they are ****ed. Strange place for a properly inflated tyre to get a nick in, unlucky:(

cunnins4

yeah, it's knackered alright. Shame given the price of them.

I've a patch on the inside of a michelin tyre at the moment and to prevent something going in through the gap on the outside I cut a tiny piece of patch, put some vulcanising paste in the tear and folded the piece of patch in half so the adhesive side was on both sides of the gap. Thought it would only get me home - It's still holding strong about 500km later! The tear is across the tyre on the top, so more tearing was likely, but nope, has done fine! Not a sign of anything moving that bad boy outta there. Great fix!

blorg

kona wrote: »

throw em out they are ****ed. Strange place for a properly inflated tyre to get a nick in, unlucky:(

In my experience you get soft of hole in situations where the tube explodes, generally happens with high pressure road tyres. It's the explosion that creates the hole. It has happened to me a number of times but not recently thankfully.

911sc- did the tyre go "bang" when it flatted and lose all pressure instantly?

Note in general with tyres condition etc. it is a good idea to be more conservative with your front rather than rear tyre, as it is more likely to cause a crash if you suddenly lose pressure.