Once more... recommended tire pressure

[AlexCWO]

So the question is. The recommended tire pressure for 130 rear tire is 32 psi.
But if the tire is changed to 150, what is the RECOMMENDED pressure?
Seems to me that though the width is larger, the pressure actually should stay the same, because the bike's and the rider's weight remain the same.

Any thoughts?

[menikmati]

I run 32 psi without any ill effects on a 150 Bridgestone. I believe you'd get a more definitive answer by contacting the manufacturer of your specific tire. 32 psi is a good starting point/baseline and you can fiddle around with it to found out how differences in pressure affect your riding so you can find an optimal psi for your riding needs.

My ZX6R has a 180 rear and I run 42-43 psi per the owners manual.

[Motofool]

Welcome to our site, Alexander !!!

Good thinking.

The temperature of the tire after a long trip will tell you what pressure is the minimum: for street riding, tire side should be hot but no so much that you cannot keep your hand on it for a moment.

Your rear suspension (and maybe a couple of undesired side skids) will tell you what pressure is the maximum.

If the tire is not going to reach the normal operational temperature (like when it is raining), you may want to reduce the pressure 1 or 2 psi (low pressures increase the temperature and vice-verse).

[rojoracing53]

32 front and rear for street ride just because.

Oh yeah that's for every tire size from 110 to 190

[adouglas]

I recently read something interesting when looking into the crazy-high recommended pressures on my new GSXR (38F 42R).

Here it is: A tire that's been warmed up should have pressure 10 percent higher than it does when cold.

If the pressure hasn't ridden by that much, the cold pressure is too high.

If the pressure goes up by more than 10 percent, the tire is underinflated.

The idea is that a tire needs to reach a certain temperature to achieve optimum traction and if you overinflate, it won't flex enough to get warm. If you underinflate, the reverse happens.

I have no idea if the concept is valid or not, but the reasoning makes sense to me. I also verified the effect on my own... when I reduced cold pressures to 34/38 they did indeed rise to about 38/42 when hot.

What makes this intriguing is that it provides a measurable benchmark for proper inflation, something more tangible than subjective calls like "too warm to touch comfortably" or "suitable for your riding style/conditions."

[AlexCWO]

Ok, gracias

[alex.s]

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