Puncture re-inflation

[the_killjoy]

Has anyone an opinion on the effectiveness of the pressurised emergency tyre repair kits, just to avoid a rear wheel repair in the rain.

Halfords | Weldtite Bike Tyre Seal 100g

 

[RobF]

I carry something similar.

Opinions seem to vary, some people swear by them, others swear at them.

Tempting fate, I've not had to use mine.

 

[the_killjoy]

Yes it's not something I would use regularly, especially as it would mean the tube is ******ed as it can not then be patched.

 

[Deleted member 4366]

I used one from the pound shop to get me home. It worked, but not enough gas to pump the tyre right up, so you need a pump as well. The tyre's stayed inflated a month later, but I haven't ridden it since. I think that their effectiveness depends on the type of puncture you have.

 

[the_killjoy]

Ah well, down to the pound shop then ~ at that price who cares if it works

 

[Scimitar]

I've used Slime and other things like it on car and motorcycle wheels for years - all I can tell you is; 90% it's a waste of time and money in a tubed tyre.
It's worked 100% for me in tubeless tyres and for that reason I went tubeless on my rear bicycle wheel. The tyre is dosed up with latex as part of it, so it self-seals when punctured. I've not had a puncture yet, I'll be interested to see what happens when it does.

 

[KirstinS]

I have also tried to use the pound shop version - failed utterly and just got gunk everywhere

Think it may have been a user issue mind !

 

[flecc]

I've used Slime and other things like it on car and motorcycle wheels for years - all I can tell you is; 90% it's a waste of time and money in a tubed tyre.
It's worked 100% for me in tubeless tyres and for that reason I went tubeless on my rear bicycle wheel. The tyre is dosed up with latex as part of it, so it self-seals when punctured. I've not had a puncture yet, I'll be interested to see what happens when it does.

My experience too. I've tried four different brands over time with the same failures on tubed tyres. Not surprising since the concept was invented for tubeless tyres. The interface of tube and tyre is always likely to produce weakness in any sealing attempt.

 

[johnc461165]

I bought a Bell guaranteed no punctures inner tube from Asda and guess what I got a puncture, but after cleaning the tube I had no problems using a normal stick on patch.

 

[Jaunty]

Tubeless

I've used Slime and other things like it on car and motorcycle wheels for years - all I can tell you is; 90% it's a waste of time and money in a tubed tyre.
It's worked 100% for me in tubeless tyres and for that reason I went tubeless on my rear bicycle wheel. The tyre is dosed up with latex as part of it, so it self-seals when punctured. I've not had a puncture yet, I'll be interested to see what happens when it does.

Interested in the tubeless concept. Do you need a different wheel rim, as you would on a car? Has it maintained its self-sealing magic powers? If not, what happened?

 

[Scimitar]

Interested in the tubeless concept. Do you need a different wheel rim, as you would on a car? Has it maintained its self-sealing magic powers? If not, what happened?

www.tubelesswheels.com has really useful information on it but it's down at the moment.
I can't claim originality, simply copied what had been done by others - found a 24" tube, stretch-fitted it to the 26" rim, cut it open circumferentially and fitted the tyre. This way, the cut tube forms the base, the valve seat, the rim seal. Some latex mix is injected via the valve hole and the tyre inflated and left for a day or two. It gradually fills all the porous bits and stays up.
Not something you'd want to do in an evening and expect to run the bike the following day, though.
So far it's lasted a year and a half, and only loses a small amount of pressure if the bike's unused for more than a couple of weeks. Ideally, I should check the state of the latex every so often, but I haven't bothered much.
The rear tyre is a Fat Frank, 2.25" iirc.

 

[stuvy]

i used to run the slime filled tubes on my mtb years ago only downer is it kills the valves and you cant get any more air in them.

about 2 years ago i purchased those tyre liners (£10 a pair) there in now and you cant notice the difference at all. Iv not had a puncture yet and at the end of last year road across a freshly cut hedge row that was next to the cycle path i was on with no issues.

As for the gas canisters, iv put three large ones into a motorbike tyre in the past with no success. The biggest downer being you still need a pump as you inevitably loose air when filling or releasing the valve.

Now days i just carry a spare tube, pump and 3 plastic tyre leavers under my seat. I also have a bike multitool and cable ties just in case!