Nitrogen filled M/C tyres?

[Mikkel]

Yes it does

Does not...

[noobi]

Does not...

It does so...

[98tls]

Yes it does

Thought you might show up here mate.

[nudemetalz]

Well does it or doesn't it?
That is the question.
Just like E=MC2

[3umph]

dam kids these days

[SARGE]

meh..i run it in the Ace

too early to tell...

[Max Preload]

Nitrogen is good for keeping tyre pressures more stable in between hot and cold tempratures as it has no moisture in it.

Air can have no moisture too - it's called dry air. In operation in extreme temperature ranges like aircraft when they can go from 40 to -60 it might make a difference, but it's used in aircraft because it's inert too.

If that is the case why do they us it in F1 and have been for over 50 years.

See above - extreme service.

Good in cars not so much in bikes as it takes longer for the tyres to warm up to optimum temps.

Bullshit. The relative rates of expansion of air as a mixture of 76% nitrogen and near pure nitrogen as a molecule is so minute as to be statistically insignificant.

Also holds pressure longer, had a customer with a Toyota landcruiser came in to my shop in feb last year sold him nitrogen. He came back in 6 months and it hadnt droped a pound came back in november same thing 40psi 10 months with out needing a top up is bloody good going.

Air does that in my car tyres. But then, air is 76% nitrogen anyway.

How do you ensure that the tyre is completely nitrogen filled, as when it's fitted to the rim it is initially filled with air. How do you ensure you've purged all that when there's only one fill point?

Can we design a wave for people who have Nitrogen in their tyres?

There's already one. It goes like this...

[Forest]

Yes it does

Tyres are impermeable. There is zero diffusion through the rubber.

The only way that the gas inside a tyre can escape is either:

a. Through the valve (or stem).
b. Through the bead.

Using Nitrogen to fill your tyres has no effect on either of these.

Think about it.

[Kickaha]

Tyres are impermeable. There is zero diffusion through the rubber.

Not according to the guys that build them

[SixPackBack]

Tyres are impermeable. There is zero diffusion through the rubber.

The only way that the gas inside a tyre can escape is either:

a. Through the valve (or stem).
b. Through the bead.

Using Nitrogen to fill your tyres has no effect on either of these.

Think about it.

Fill a tyre with Helium and see how impermeable rubber is......only have to look at Helium filled balloons to see how well it contains light gas [yes some helium will leek out of the seal, but if you did a back-to-back test with air filled balloons the result speaks for itself.............rubber is permeable [but contains Nitrogen pretty well]].

[icekiwi]

Don't forget pressure bleeding through the rim,I worked in the Ford Alloy wheel plant for a fair few years and am responcible for a few falcon tyres going flat...

[Devil]

Perhaps the backyard scientists among us could actually go look up the facts directly related to nitrogen use, from reputable sources, instead of pretending they know everything, or quoting other backyard scientists.

It's been proven, it works. I dont know why this discussion has come up again.

[Max Preload]

Perhaps the backyard scientists among us could actually go look up the facts directly related to nitrogen use, from reputable sources, instead of pretending they know everything, or quoting other backyard scientists.

Anyone in particular you're like to attempt to refute or would you prefer not to specify names or particular claims?

I dont know why this discussion has come up again.

It's amusing to poke fun at people who swallow every bit of marketing hype and jargon as if it's the word of God himself...

[Devil]

Anyone in particular you're like to attempt to refute or would you prefer not to specify names or particular claims?

Any of the "non-believers".

It's amusing to poke fun at people who swallow every bit of marketing hype and jargon as if it's the word of God himself...

Pull your head in you arrogant prick.

I think the F1 case is a pretty damn good example. Doesn't that ring any alarm bells in your head that maybe, just maybe they're right? y'know, I mean it's not like they spend any money on research and development or anything...

[ManDownUnder]

*yawn*... read this
and this

...of note to me...
Due to nitrogen's larger molecular size, it migrates through a tire three to four times slower than oxygen. Whether a truck tire is parked on a trailer or running down the road, if it's filled with "plain old air" it will lose approximately 1.4 to 1.7 psi every week.

According to a 2007 Clemson University study, nitrogen reduces this loss by 69 percent or greater.

They're talking about truck tires. A shit load thicker/stronger and I would expect harder for gases to escape from. As sixpack alluded to - fill the bastards with Helium and watch the fun.

NEXT!