Join Date: Aug 2009
Location: Washington, the state
What is actually printed on the tire sidewall?
Doesn't it have something on the front like, "Max Load 536 lbs. @ 42 psi - Cold".....???
That means that to carry the tire's maximum allowable load of 536 pounds, you need no less than 42 psi. It does not mean that 42 is the recommended pressure nor that 42 is the maximum possible cold pressure. Nor that the bike can carry the loads the tires are rated to carry.
Within limits, more pressure gives longer tread life. Less pressure gives more traction. Start with the pressure recommended on the sticker on the bike and in the owner's manual. If you want more traction, lower it a bit, so that the difference between cold pressure and warm pressure is about a 10% pressure rise. If you want longer tire life, raise it a bit. When carrying a passenger or heavier loads always use the higher pressure shown on the sticker for those loads.
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