Your tires already contain nearly 80% N2. Any difference you "noticed" was in your head. The ONLY advantage N2 offers is if you would otherwise be putting EXTREMELY humid air in your tires, such that the water would condense inside the tire when cold, and then vaporize as the tire heated up, causing a sudden change in tire pressure.H2oknine said:When I was in the service we would up the aircraft tires with N2/Lox. When I bought new tires for our vehicle we had them put some in have noticed a difference. So has anyone ever put N2 in their bike tires? and if so have they noticed a difference.