Is nitrogen have any special properties?
Nitrogen is an inert gas with some of the favourable properties like non-toxic , non-flammable and either cooling too . Tyres filled with Nitrogen gas doesn't gets burst out at higher speeds .
To keep the tyres cool pure nitrogen cools the tyres when we fill air it contains mixture of gases including co2 that's why we use nitrogen to increase the life of tyres and save them from wear and tear
Pure nitrogen does not contain water vapour whereas air contains. so in case of air oxidation occurs and corrosion of wheel rim occurs. nitrogen. in case of air pressure changes with temperature and while riding temperature of wheel increases and inflation pressure changes. so tire maintanance cost increases. in case of nitrogen pressure change is vary vary small. nitrogen is very less permeable through rubber. So altogether inflation pressure change is very less for nitrogen.