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How effective is "slime" at preventing punctures?

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did you see the price of them things lol i cant even find a bike with them on even over 10k.

 

 

you pay more for less these days :rolleyes:

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did you see the price of them things lol i cant even find a bike with them on even over 10k.

 

 

you pay more for less these days :rolleyes:

 

 

 

£2,436 per broken spoke... o_O

Slimed inner tubes: Does slime block the valve when you want to reduce pressure?
I was using Bontrager LT3 (26") they were amazing for the first 2 years, out in all weathers and not one puncture, then a massive streak of cuts, forced me to replace the tires, so I changed to Schwalbe puncture Kevlar walls and they did good for ages then as mentioned back to punctures... I think it's luck of the draw in most cases, however slime does help, most of the recent glass cuts, when the innertube was removed there was actually several other small green blobs and tiny thorn holes so I feel that they work. £9 a slime tube v £4 a norm tube, while I am flush I'll stick with slime.

Does slime block the valve when you want to reduce pressure?

At a guess on the move, yes, however left to rest maybe.

Do pre-slimed tubes have removable valve cores, so that I can top up?
I believe it is recommended that slimed tubes (either pre-slimed or self-slimed) are replaced after two years. Seems a reasonable proposition to me for a puncture-free existence.

The wise old guy at the bike shop almost sold me some pre-slimed inner tubes last week, he's been right about everything else... maybe I should have bought them.

 

Anyone tried solid tyres?

Not since Mr Dunlop did his thing.

Airless tyre developed with NASA - can be retreaded over the alloy, which lasts years:

 

 

https://www.popsci.com/story/technology/metl-bike-tires-nasa/

 

 

https://www.smarttirecompany.com/

 

 

...but tiny particles of nickel breathed into the lungs as these tyres wear out, can cause cancer. So best wear NASA spacesuits, which we all may be wearing soon anyway because of Covid-19, 20, 21 etc.

 

 

https://www.cancer.gov/about-cancer/causes-prevention/risk/substances/nickel

Well, I'm convinced - ordering pre-slimed inner tubes. Can't argue with the wisdom on these boards...

Of course yesterday I had a puncture two miles from home. I inflated with a CO2 gas thing, it got me home and is still inflated this morning.

Not that it's got the full amount Slime in it, but that's another story.

Of course yesterday I had a puncture two miles from home. I inflated with a CO2 gas thing, it got me home and is still inflated this morning.

Not that it's got the full amount Slime in it, but that's another story.

 

 

 

That's the worry, isn't it? 40+ miles from home is dead easy on an ebike. Mad not to slime.

 

Looks like I'll be ordering some CO2 too...

Of course yesterday I had a puncture two miles from home. I inflated with a CO2 gas thing, it got me home and is still inflated this morning.

Not that it's got the full amount Slime in it, but that's another story.

 

 

 

I've just risked life limb and Covid and bought two pre-slimed from the local bike shop. CO2 canisters don't have pressure guages, the VeloChamption pump does and is pretty small, I'l stick with that for now. It's bloody good, tiny too:

 

 

https://www.amazon.co.uk/VeloChampion-Alloy-Mini-Pressure-Gauge/dp/B00CBN9L1S/

 

 

It actually does a better job than my foot pump, which broke on second use.

40, 50 or 60 miles from home if I puncture a patch doesn't take long for me to put on so much better then a tyre full of green shite when the tube doesn't seal.

40, 50 or 60 miles from home if I puncture a patch doesn't take long for me to put on so much better then a tyre full of green shite when the tube doesn't seal.

 

 

Good point! I'll put these slime-filled tubes in, but I'll carry a slime-free tube, just in case. The bike repair kit keeps getting bigger (sigh).

Does nobody else carry a spare tube any more?

Just make sure you've got rid of the offending thorn/glass before installing the spare.

 

[EDIT: ah, you got there before me!]

This will make some of you laugh: I bought two pre-slimed tubes yestarday and tried to fit them... the first one, I managed to nick somehow. Thought I had been careless - I have never nicked an inner tube while fitting them before. The hole sort-of sealed, but the tyre would not maintain pressure. So I tried again with the second tube - and despite being extremely careful, somehow managed to nick that one too. This time, it didn't seal at all. Deflated, both me and two tubes, at a total cost of £19.98 for two tubes. The rubber seemed very delicate, compared to my normal Impac. The manufacturuing dates on the bottom of the pack indicate 2019, which could have caused the rubber to soften maybe? The life of slime tubes is two years. I don't think I'll be using slime inner tubes, because it also seems that slime can damage rim metal:

 

 

https://www.slime.com/uk/faq-details.php?id=17

 

 

I'm just going to put on Marathon Plus tyres, and carry a spare Impact inner tube, after I've thoroughly washed my wheels of slime...

[mention=26306]richtea99[/mention] - yes it is funny. Slime is all over the insides of the rims, under rim tapes, probably on the spoke nipple ends. It'll take a right dunking, to get rid of this metal damaging cr*p.

This will make some of you laugh: I bought two pre-slimed tubes yestarday and tried to fit them... the first one, I managed to nick somehow. Thought I had been careless - I have never nicked an inner tube while fitting them before. The hole sort-of sealed, but the tyre would not maintain pressure. So I tried again with the second tube - and despite being extremely careful, somehow managed to nick that one too. This time, it didn't seal at all. Deflated, both me and two tubes, at a total cost of £19.98 for two tubes. The rubber seemed very delicate, compared to my normal Impac. The manufacturuing dates on the bottom of the pack indicate 2019, which could have caused the rubber to soften maybe? The life of slime tubes is two years. I don't think I'll be using slime inner tubes, because it also seems that slime can damage rim metal:

 

 

https://www.slime.com/uk/faq-details.php?id=17

 

 

I'm just going to put on Marathon Plus tyres, and carry a spare Impact inner tube, after I've thoroughly washed my wheels of slime...

Another convert. Good luck with them.

If your wheels are at all awkward to remove consider Gaadi inner tubes.

Edited by sjpt

Cruel. But funny for us heartless swines. ;)

Thanks for taking one for the team...

Edited by richtea99

Re: Gaadi, I had to look 3 times to make sense of it.

Interesting, but it adds two more potential points of failure, i.e. the ends.

 

Also one of the translated Amazon reviews says in a lovely Dutch/German style:

> The hose can be easily pulled onto the rim. Unfortunately, the bike rides a bit unround afterwards.

 

Have you tried them?

Cruel. But funny for us heartless swines. ;)

Thanks you for taking one for the team...

 

 

I could have just been unlucky - the serial number underneath the boxes indicate that they were manufactured in April 2019. Almost two years old! Probably compromised structurally. I'm not going to make a fuss, because the very wise old bike owner runs a quiet bike shop, and he's got me out of sticky bike situations by dispensing solid gold advice via phone in the past. But it might be the last time I try to "Buy local" bike bits...

 

Slime won't get any more of my time.

Another convert. Good luck with them.

If your wheels are at all awkward to remove consider Gaadi inner tubes.

 

 

Yes I briefly converted to slime, but will now resolutely remain slime free!

 

Cheers! I might get a Gaadi tube, the seem good for a relatively swift, temporary (at the very least) repair.

Re: Gaadi, I had to look 3 times to make sense of it.

Interesting, but it adds two more potential points of failure, i.e. the ends.

 

Also one of the translated Amazon reviews says in a lovely Dutch/German style:

> The hose can be easily pulled onto the rim. Unfortunately, the bike rides a bit unround afterwards.

 

Have you tried them?

I don't ride them regularly but did have one on for a bit and didn't notice any unroundness. The reason I took it off was that they were fatter than I had expected from the sizing, and when I changed tyre (to put on a Marathon Plus) the new tyre was a bit narrower than the original and the tube too fat.

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