I have an 07 SG and on the dash it says AIR so i thought that was how many lb's of air was in the system it seemed high today was pretty stiff so i let some air out.Didnt seem to show on the gauge.Then i looked closer it says F for temp is this just an air temp gauge? how do you know how many lb's of air is in the system use a tire gaugae? I cant believe they put a thermometer on the bike who the hells cares how hot it is outside....i want to know how many lbs air i am running so i can know how much i need to add or let out for dbl riding...