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munnracing

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Dunstable

Excuse my wierd question but im lookin to get my newly aquired wheels split and i am a bit miffed as to the having to use innertubes

1. Is it legal to run innertubes
2. Apart from minispares is their anywhere else you can get the tubes
3. Is it easy to fit the tyre or will i have to take it to a tyre place
4. Will it pass an mot
5. Do i have to run it at a different pressure to a tubeless tyre

Ive had a search and i couldnt find much on the tubes all i found was the conversation about running them with slicks and put alot of talc in with them and make sure their not pinched anywhere

Cheers in advance Josh


1380rich

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warwickshire

i ran tubes with my force racing wheels and had no problem, ran them at 28 psi.. only place i could find to get them from was mini spares tho :)

2012 Avon class c 2nd place 13.8 @98mph


MONSTER HEDGEHOG

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sideways, Birmingham

inner tubes are perfectly legal, i think you might be able to get them from most tyre places as they use them on trailers sometimes, fitttings going to be easier than a non tubeless if thayre 10" due to not having to blast it with an air cannon to seat the sidewalls.



On 15th Dec, 2009 fastcarl said:
sell the lot to me for £70 pounds and i'll let you stand on the outside edge and look on my inner circle of closest frinds, lol


carl




FOR EVERY WELL THOUGHT OUT AND WELL EXECUTED PRICISION JOB EVER CONCIEVED, YOU CAN GUARANTEE THAT SOMEWHERE IN WALSALL OR THE BLACK COUNTRY THERE WILL BE A BLOKE TRYING TO ACHIVE THE SAME BY MEANS OF "ITIN IT WI LUMP AMAR"


Rob Gavin

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Glasgow

I got my innertubes from the local tyre wholesaler about £2 each


munnracing

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136 Posts
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Dunstable

cheers guys it seems a very gray area when your searching for it on the tinterweb as to if theyre legal or not know one seem to know and whether they should be pumped up a bit more


Vegard

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I pick holes in everything..

Chief ancient post excavator

Norway

Why on earth shouldn't innertubes be legal?

On 13th Jul, 2012 Ben H said:
Mine gets in the way a bit, but only when it is up. If it is down it does not cause a problem.



Gibbo

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I'm not sure about legal or not, but it is not recommended to fit tubes to tyres below a certain profile.
Also some tyres are not suitable for tubes because of their construction make friction between tyre wall and tube.
Classic cars are usually OK because they were designed for tubes.


Asphalt

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Germini, black forrest

On 24th Nov, 2009 Gibbo said:
Also some tyres are not suitable for tubes because of their construction make friction between tyre wall and tube.


I had a long phone call with an Yokohama technician - his advise was not to use Yokos with tubes! For that exact reason; the inside of the tyre is to rough for a tube. However, he told me, if I'm desparate to run Yokos with a tube - I shall use much talkum and keep a good eye on the air pressure (under inflated tubes lead to excessive 'rubbing', resp. failure).

The reason I need/want to run tubes is that my wheels have a very (very) smal bead on the outside and I'm afraid the tyre might slip off on hard cornering... So I'll risk it.

Left; bespoke wheel, right; Exacton (large-ish safety bead w/ a 'hump'):

http://img204.imageshack.us/img204/3932/beadsg.jpg

Thoughts?

[X] nail here for new monitor


Tom Fenton
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Fearless Tom Fenton, Avon Park 2007 & 2008 class D winner

&

TM legend.

Rotherham South Yorkshire

You don't HAVE to run tubes with split wheels. You can build them up with silicone between the sections to make them air tight. However then it makes it difficult to get the wheels apart when changing tyres- trying to mount the tyres over the alloy rim means high likelihood of damage. If you can unbolt the rims, then get the tyre fitters to push the tyres off the bead, you can then easily seperate and mount new.
So the choice is, run tubes and easy to change tyres, don't run tubes, seal rims, difficult to change tyres.


On 29th Nov, 2016 madmk1 said:


On 28th Nov, 2016 Rob Gavin said:
I refuse to pay for anything else


Like fuel 😂😂


Paul S

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Formerly Axel

Podland

I took the Mig MB 10 x 7s and inner tubes to my local tyre man to have the Dunlop wets removed and A032Rs fitted.

He rings up and says "why do you want tubes".... I said "because the rims might leak".... He said "these rims are well sealed, no need"..... I said "OK then".

Plus he did not like the angle of the valve in the rim which may have distorted the inner tube.

Anyway, that was about six months ago and they are still holding pressure.

BUT, my SC rims that I sealed myself need a regular inflate.

So it really depends on how well you put the wheels together.

Saul Bellow - "A great deal of intelligence can be invested in ignorance when the need for illusion is deep."
Stephen Hawking - "The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge."


graemec

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Carnforth, Lancs

Would it be that difficult/costly for the wheel manufacturers to have a rubber gasket produced?


Rod S

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Rural Suffolk

This is just what I have found out over the last few weeks...

Not so much illegal but most certainly NOT recommended by the "experts" for road use and/or tyres designed to be tubeless. This is what I have been told by three seperate independants when I suggested fitting my exploding Yokahamas with tubes to avoid the "stress" of having to snap the beads into place....

If you look at the valve stem on an inner tube at the point it exits the wheel most are deliberately designed with a series of ridges to make sure it does NOT seal between the tube and wheel but has a series of vents to let the air out fast. This is to release all the air between the tube and the tyre when the tube is first inflated.

When a tubeless tyre gets a normal puncture (say a nail) the thickess of the tyre means the loss of air is very slow. When a tube gets a puncture it doesn't have the same strength to contract around the nail so the air is released much quicker. In fact if the puncturing item is ragged the tube will often tear. So a tube releases its air very fast and straight out through the vents around the valve stem.

So, on average, a tubed tyre will suffer a fast deflation when punctured, a tubeless one will not.

Second reason, the inner surface of a tubeless tyre is rarely moulded smooth, look inside and you usually see all the contours of the re-inforcing cords, a nice helical pattern. The amount of patterning apparently varies from make to make, ie some are smoother than others, but the continuous flexing of the tyre will cause the patterning to "fret" against the tube potentially thinning it in the same pattern thus making it even more likely to tear when punctured. The "putting a lot of talcum in the tyre" (from the very first post) is to try and prevent this.

Take what I have been told at your peril, but it makes sense to me.

Schrödinger's cat - so which one am I ???


Billus89

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Herefordshire

Holy thread revival!!!
What's the verdict?
Are people tending to run splits with a tube or trying to seal them and run tubeless?
I can't see the big deal with using tubes personally, I have fitted countless tubes to all manners of vehicles and don't see an issue.
The only downside as highlighted here is the potential for faster deflation during a puncture, but then in often occurrences people experience full blowouts with tubed tyres.
What's the current views?


theoneeyedlizard

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The Boom Boom speaker Police!

Essex

I fitted tubes to my 165/55/12 A048. The first set had no problems whatsoever. Since then, I've replaced two of them which now deflate over the course of a few hours.

I'll be pulling them apart soon to find out why.

In the 13's at last!.. Just


jonny f

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Dorking

Got none in my force split rims. No issues yet.


mini93

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Warwick.

I was once recommended, if fitting inner tubes to radial tyres designed to be used without tubes, assemble with a shit-load of baby powder between the tyre and tube.
Not 100% sure on his reasoning, but he runs historics with this method and didnt appear to be an issue.

David.


Alex

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Woolavington, Zummerzet

I've spoken to my tyre guys about running tubes before, and they will not fit tubes to a Mini wheel - the valve hole is in the wrong place apparently and the inside of the tyres is too rough. Pretty much what has been said before.

Metric is for people who can't do fractions.

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