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[Albatross]

 

Nah, I'm cheating ( a bit); I do dive and I do use enriched air, so I do know the constituent parts of air and thier proportions, but the covalency b0ll0x was pinched from a site which deals with this Nitrogen in tyres m'larkey in detail: (sadly enough I do understand it and know why too, but they aren't my words)

http://theforcethat.blogspot.com/2007/02/nitrogen-for-tires.html

[markey mark]

Nah, I'm cheating ( a bit); I do dive and I do use enriched air, so I do know the constituent parts of air and thier proportions, but the covalency b0ll0x was pinched from a site which deals with this Nitrogen in tyres m'larkey in detail: (sadly enough I do understand it and know why too, but they aren't my words)

http://theforcethat.blogspot.com/2007/02/nitrogen-for-tires.html

not such a smart arse then dude !!

[markey mark]

and nitrogen is more for high performance tyres bit of a gimmick really and stay away from rock hard michelins !!  

[rad cap]

so your not a rocket sientist,  thats a shame   alby

[Entwood]

Military aircraft tyres are inflated using Nitrogen as standard ....

Nitrogen is used for safety reasons and to ensure that tyres are always at a constant pressure. Compressed air, the traditional medium for inflating car tyres, contains both oxygen (21%) and nitrogen (78%). and varying amounts of water vapour.

The rubber tyre is like a membrane, through which oxygen permeates three times faster than the nitrogen. The result is that the oxygen slowly leaks out through the rubber walls, and the under-inflation leads to higher tyre wear with a consequent decrease in safety.

The increased temperature stability is an important factor, as the tyres are at about -43 C when at altitude, and quickly heat to around +80 C on a "normal" landing. A "high energy" landing (short strip, heavy weight or high speed emergency) will attain even higher temperatures.. as will a rejected (aborted) take-off.

HTH

[Albatross]

so your not a rocket sientist,  thats a shame   alby

It was good while it lasted

[rad cap]

 

[Martin_1962]

I use Costco, but not for tyres, as they only sell Michelin, and I wouldn't put them on a push bike.

Nitrogen is supposed to keep more even pressure over temperature.

When I had my 600 they were the best motor bike tyres on hte market, radials

Racing forced the tyre companies hand - certain classes said road tyres - road tyres got grippier