Tire Pressures

TriumPhil said:

Was that recommendation for the racetrack, where you'd obviously be pushing your tires hard, or for everyday riding?

I've tried such lower pressures for my normal riding (fairly aggressive, lots of twisties and graded roads - moderate amount of stop & go) and the bike felt somewhat squirrelly (less stable), especially in hard turns.. running hard on a less inflated tire also seems to accelerate the further loss of pressure in the tires.

Also, your report of "lighter" or easier turn-in with lower pressures seems counter-intuitive as the lower pressure creates greater rolling resistance (friction) and increases sidewall flex which should serve to diminish lateral stability???

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ozrider said:

@mr hunt the tyre guy was more than likely allowing for pressure build up after a few laps, did you check them hot after a run?

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TURBO200R4 said:

sure you could pump up the tires to 50 psi and get more gas mileage what concerns me is the front tire and how fast i can stop. i run 36 psi and at that pressure it has a fair contact to the road if you pump it up to 40 psi it will have less contact and might make a small difference in stopping distance. imho

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HansO said:

back in my sports bike days we would drop our tyres a couple of psi for track days cos the heat build up on track where the tyres don't really get to cool down between corners and the lower pressure actually enhances grip by causing extra heat to build up in the first place, but I wouldn't do it for road I run 40psi in front and 42-45 psi depending on whether I am towing while running a bike tyre or 28-30psi with DS tyre

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IMFASTTOO said:

iM SURE you can feel the rolling resitance pushing the bike with 28 psi in a DS tire

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HansO said:

Nope ........ tyre designed to carry a lot more weight than our lil' ol bikes

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HansO said:

Nope ........ tyre designed to carry a lot more weight than our lil' ol bikes

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IMFASTTOO said:

MY CF wheels came with a DS rear and I replaced it with a SHINKO MC tire and I noticed a dramatic difference turning the bike around in my garage

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HansO said:

maybe ya hadn't been having your "wheaties" in morning's before that

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IMFASTTOO said:

LOL yep I needed an extra cup of coffee to just turn the bike around

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