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tire pressure question
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superdupernunu
 
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tire pressure question - April 26, 2009, 01:27 AM

hey guys i knows theres some info on this already on the forum but its late and i couldnt find exactly what im looking for right now via the search key...

i have a set of pilot powers (not 2ct's)...now that the days are heating up rather nicely, what would you advise my tire pressure be at prior to taking off on a ride (cold), front? rear?

tire life is not as big of an issue for me as grip is now that the riding season has begun, and the school highway commute will come to an end. though, something between ultimate grip and halfway decent tire life would be great.

thanks in advance


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Range Rover Owner
 
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April 26, 2009, 04:58 AM

i run mostly 30/30 and get about 5-5.5k miles on reg powers. on the track, 28/28. i wouldn't put more than 32psi.
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April 26, 2009, 05:27 AM

Really depends on the environment you are ging to be riding in etc.

Lower tire pressures are great for the track, but running 29psi etc etc on the street has other problems.. pot holes etc are NOT a friend of your actual RIMs when you run lower pressures.

That being said.. the 36/42 etc pressures that motorcycle manuals recommend are probably high.

Remember, on a track, tires get much much hotter, and then the cold vs hot differences are greater. So if you have a 29psi cold tire, on the track it'll heat up to be much higher than 29psi.

Whereas, on the street, the tire simply isn't giong to get that hot.. thus if you started it at 34psi (wild guessing here).. it may end up being the same "hot pressure" as the track tire started down at 29.

Man, too early, need more coffee


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April 26, 2009, 08:27 AM

I ran 35psi on the new tires .. felt alright .. I guess


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April 26, 2009, 08:31 AM

less air = more grip less flick
more air = more flick less grip



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formerly RC51Pilot
 
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April 26, 2009, 09:34 AM

32f, 34r
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GDMFSOB
 
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April 26, 2009, 08:42 PM

Quote:
Originally Posted by DEEP View Post
I ran 35psi on the new tires .. felt alright .. I guess
You weren't sweeping all day, you did well! Must have been better than "alright"
I keep mine around 36 COLD. May drop it a bit in hot weather so the expansion, when up to temp, nets the same "hot" pressure. Also, remember, your rear tire has more volume. Therefore, it will end up slightly higher at temp.


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superdupernunu
 
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April 26, 2009, 10:46 PM

exellent, thanks guys. after getting mine back from my last oil change a few months back the guys at the shop were gigging me for having the tire press. too low, i think it was down to about 32...should have been higher to conserve life since i was only doing highway riding in the winter but i guess they inflated it up to the max..42.

i just dropped it back down to about 35/35 today for a little backroad fun and it felt fine, might go 1 or 2 lower actually.

thanks again


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Firebreathing VTwin
 
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April 27, 2009, 12:01 AM

I set all my customers sportbike tires at 32/36...

It AMAZING the number of bikes I check that are off. 10psi lower than recommended is not uncommon. I'd say maybe 1 in 10 are spot on and 3 or 4 are in the teens.

And these are bikes that are ridden into the shop!


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Nothing here
 
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April 27, 2009, 07:27 AM

It's going to be hard to get a lot of agreement out of this one. You could always go for the average of the answers since so many people have different opinions. 32f/34/r for me.
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