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Always inflate tires to the correct pressure as indicated in the owner's manual. However Metzeler North America has found the air pressure suggestions listed below will improve mileage and customer satisfaction especially if a emphasis is placed on running the air pressure towards the maximum as stated on the sidewall. Check cold tire pressures frequently. Correct tire pressure is crucial for safe handling. Over inflation may impair ride comfort and reduce the contact patch between the tire and driving surface of the tires. Insufficient air pressure will result in poor handling and cause a tendency for the motorcycle to "wander". In addition, improper and insufficient tire will cause accelerated tire wear, increased fuel consumption, less control and the possibilities for tire failure to due an overload/under inflated operating situation.
Thanks everyone for all the info... I also have nitrogen filled tires, and I assume it's okay to add air to the nitrogen. The atmosphere is already 79% nitrogen so, I guess the 20% of air won't hurt anything. Thanks again for all the info.
A cautionary tale - this isn't just about getting good longevity from your tires. I have a friend who was riding 2 up (he and his wife) up in Vancouver, Canada. He didn't have enough pressure in his rear tire. He went into a curve and the tire flattened out enough that he couldn't control the curve. Even though he was only doing about 20mph he ended up in the concrete divider (fortunately there was one - or he'd have been in oncoming traffic). He had a compound fracture - the bone ground along the concrete. The Canadian doctors insisted he had to have his leg amputated. Luckily his insurance covered a medivac flight back to the USA where they saved the leg.
Thanks everyone for all the info... I also have nitrogen filled tires, and I assume it's okay to add air to the nitrogen. The atmosphere is already 79% nitrogen so, I guess the 20% of air won't hurt anything. Thanks again for all the info.
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