My Honda Fourtrax's left tire is a bit soft. It isnt flat so I'm thinking with the change in temperature, the pressure inside the tire could have dropped. Is this possible? Would a 20 degree (celcius) change in temperature affect the pressure a lot? I'm in Chemistry at school and I have learnt that when Temperature goes down, so does pressure. But I have no idea if a change in 20 degrees is really that much.

Help me out.

 

You might lose a half pound or so but it shouldn't lose any more than that, you might want to check it with some soapy water and and spray bottle around the whole tire and valve stem...you may have a small leak in it.

 

A 20 degree celcius will change the air pressure in my atv tires by about 1 psi.If it was just temperature all of your tires would have lost the some pressure.

 

I went out to ride just after it had turned really cold, and my tires were completely flat practically, but I know my tires are f' ed up.