Just a note for you guys(and gals) I needed to add some pressure to my quads yesterday do to the colder weather now here (CANADA) the pressure was at about 3.5-4 lbs.....put back up to 5 P.S.I. ...Keep an eye on your tires cold weather really makes a differance.......I know most all you who read this are wearing shorts and tank-tops right...........I don't want to here it......LOL......Where did I put my gloves and snow brush.............caper............

 

All kinds of things will effect tire pressure: the hot sun, altitude changes, the cold, etc. All tires breathe, and will lose some pressure just sitting in the garage. I just check my pressure before every ride.........