Nitrogen in tyres? - Page 3 - SV650.org

NTECUK · 18-03-12, 08:35 PM

The only thing we use nitrogen is to.locate leaks in the a/c system.

flymo · 19-03-12, 08:51 PM

Loads of information around on the net about this.

I found this fairly interesting link http://www.epicentermotorsports.com/...on_Article.pdf

None of the benefits are significant to warrant the use of nitrogen in a road car or bike, especially one that has its tyre pressures checked regularly.

In a race environment, the main benefits are a more uniform change in pressure through a given temperature change. The other reason seems to be that if you have both Nitrogen and compressed air available, Nitrogen would be the better choice for a tyre.

For a road car or bike though, although there may be very small technical benefits, after including the disadvantage of not being able to easily inflate your tyres at home or the local garage, and the fact the many garages charge for the privilidge, it simply isn't worth it.

Use compressed air and regularly check your tyre pressures, simple.

SIII · 19-03-12, 09:53 PM

If the tyre is full of air before you start, and you then pressurize it with nitrogen? And air is already 78.084% nitrogen?

What is the % nitrogen increase to? (come on mathematicians work this out!)

Would you not have to fit the tyre in a pure nitrogen environment to get it 100% nitrogen? Or at least purge all of the air out first before filling with the nitrogen?

Snake Oil.

ogden · 19-03-12, 09:57 PM

Quote:

Originally Posted by SIII

Would you not have to fit the tyre in a pure nitrogen environment to get it 100% nitrogen? Or at least purge all of the air out first before filling with the nitrogen?

Yes. Try reading the entire thread, I posted this way back at the start:

http://www.livefrompitlane.com/2011/...g-on-nitrogen/

"For the nitrogen to be effective however, the tyres have to be purged of air (and water vapour) before being refilled with the inert gas, which is why the Marc VDS Racing Team carries a vacuum pump alongside the nitrogen cylinders in the race trailer."

SIII · 19-03-12, 10:02 PM

Do they do this at Kwikfit? Don't think so!

Rough sums in my head, say nitrogen content would only change from 78% to approx 89% at 30psi or 2 bar. Can't see that making a difference.

Bibio · 19-03-12, 10:16 PM

fill yer tyres with nitrous oxide, so when you get a puncture you can at least have a laugh about it.

or how about helium and get squeaky tyres.

i'll get me coat

Sid Squid · 19-03-12, 10:40 PM

Much better idea!

L3nny · 20-03-12, 05:34 PM

Quote:

Originally Posted by Bibio

or how about helium and get squeaky tyres.

And on another plus side your bike will fly!

20-03-12, 09:48 PM

Quote:

Originally Posted by L3nny

And on another plus side your bike will fly!

Only if you put Red Bull in the tank too

21-03-12, 01:03 PM

Actaully - that is quite an interesting point, Helium. Wouldnt that reduce the unsprung weight of the bike? And I guess technically, the overall weight of the bike too?

hmmm

18-03-12, 08:35 PM	#21
NTECUK Member Mega Poster Join Date: Apr 2011 Location: essex Posts: 5,314	Re: Nitrogen in tyres? The only thing we use nitrogen is to.locate leaks in the a/c system. __________________ Raisin cookies that look like chocolate chip cookies are the reason I have trust issues.

19-03-12, 08:51 PM	#22
flymo Member Mega Poster Join Date: Jan 2008 Location: North West Posts: 3,124	Re: Nitrogen in tyres? Loads of information around on the net about this. I found this fairly interesting link http://www.epicentermotorsports.com/...on_Article.pdf None of the benefits are significant to warrant the use of nitrogen in a road car or bike, especially one that has its tyre pressures checked regularly. In a race environment, the main benefits are a more uniform change in pressure through a given temperature change. The other reason seems to be that if you have both Nitrogen and compressed air available, Nitrogen would be the better choice for a tyre. For a road car or bike though, although there may be very small technical benefits, after including the disadvantage of not being able to easily inflate your tyres at home or the local garage, and the fact the many garages charge for the privilidge, it simply isn't worth it. Use compressed air and regularly check your tyre pressures, simple.

19-03-12, 09:53 PM	#23
SIII Member Mega Poster Join Date: Apr 2010 Location: Dumfries and Galloway Posts: 1,319	Re: Nitrogen in tyres? If the tyre is full of air before you start, and you then pressurize it with nitrogen? And air is already 78.084% nitrogen? What is the % nitrogen increase to? (come on mathematicians work this out!) Would you not have to fit the tyre in a pure nitrogen environment to get it 100% nitrogen? Or at least purge all of the air out first before filling with the nitrogen? Snake Oil. __________________ "You know, Scotland has its own martial arts. Yeah, it's called Fuk-U. It's mostly just head butting and then kicking people when they're on the ground" The Stoppy King

19-03-12, 10:02 PM	#25
SIII Member Mega Poster Join Date: Apr 2010 Location: Dumfries and Galloway Posts: 1,319	Re: Nitrogen in tyres? Do they do this at Kwikfit? Don't think so! Rough sums in my head, say nitrogen content would only change from 78% to approx 89% at 30psi or 2 bar. Can't see that making a difference. __________________ "You know, Scotland has its own martial arts. Yeah, it's called Fuk-U. It's mostly just head butting and then kicking people when they're on the ground" The Stoppy King

19-03-12, 10:16 PM	#26
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,569	Re: Nitrogen in tyres? fill yer tyres with nitrous oxide, so when you get a puncture you can at least have a laugh about it. or how about helium and get squeaky tyres. i'll get me coat

19-03-12, 10:40 PM	#27
Sid Squid No, I don't lend tools. Mega Poster Join Date: Jul 2003 Location: Skunk Works, Nth London Posts: 8,680	Re: Nitrogen in tyres? Much better idea! __________________ If an SV650 has a flat tyre in the forest and no-one is there to blow it up, how long will it be 'til someone posts that the reg/rec is duff and the world will end unless a CBR unit is fitted? A little bit of knowledge = a dangerous thing. "a deathless anthem of nuclear-strength romantic angst"

21-03-12, 01:03 PM	#30
pencil shavings Guest Posts: n/a	Re: Nitrogen in tyres? Actaully - that is quite an interesting point, Helium. Wouldnt that reduce the unsprung weight of the bike? And I guess technically, the overall weight of the bike too? hmmm

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Bike Tyres Leeds - free fitting on Michelin Tyres through Feb & March	Paul the 6th	Pennine Massive	14	03-03-12 04:59 PM
Liquid Nitrogen	phil24_7	Idle Banter	25	10-07-08 08:49 PM
Tyres again! New tyres to replace stock ones	metalmonkey	SV Talk, Tuning & Tweaking	12	01-07-08 05:48 AM
Nitrogen filled tyres	kcowgergmm	SV Talk, Tuning & Tweaking	9	27-03-07 11:20 AM
Tyres you have... tyres you gettin'?	Daz	TOTALSV Ireland	6	04-02-05 10:34 PM