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Old 21 Jun 08, 02:46 PM   #11 (permalink)
charlieh
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The bottom line is that the pressures recommended by the manufacturers are to give, more or less, optimum mileage for average weights of riders. This is why pressures are higher with pillions.

Lower pressures will in general allow the tyre to heat up quicker and run hotter. This in turn gives more grip, but reduces tyre life.

But....if the pressures are too low the tyre doesn't 'sit' correctly on the wheel and rears wheels in particular can spin inside the tyre....

....Not recommended
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Last edited by charlieh; 21 Jun 08 at 11:30 PM.
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