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Old 01-16-2009, 09:25 AM   #1
Brian f.
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Bridgestone Supermoto tire psi?

Taking the new motard out to the track this weekend. Its got Bridgstone Battlaxe Supermoto tires on it.........what kind of psi is a good strating point in these things cold??? Will not have warmers with me. Thanks
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Old 01-16-2009, 09:29 AM   #2
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Call John Hutchinson with SCRC, he's the Bridgestone race tire distributor and he'll be able to help you out.
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Old 01-16-2009, 09:40 AM   #3
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I would start at around 16 psi, could go up to 20 psi tops if i had to make a guess, also depends on the type of tire as well. your bike weighs a lot less so it doesn't require as much pressure
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Old 01-16-2009, 09:47 AM   #4
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Quote:
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Call John Hutchinson with SCRC, he's the Bridgestone race tire distributor and he'll be able to help you out.
281 703 0296
Thanks Patrick. Sure hate to bother someone with a phone call for such a simple little question but i might have to. Unless maybe Kawi Jim see this

Quote:
Originally Posted by CarbonJames View Post
I would start at around 16 psi, could go up to 20 psi tops if i had to make a guess, also depends on the type of tire as well. your bike weighs a lot less so it doesn't require as much pressure

Yeah, bike is new to me. I know its the 165 supermoto rear, but i dont know what compound. Its the SM tire thats got "minimal" tread just in the center of the tire.
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Old 01-16-2009, 09:55 AM   #5
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If I know John, it'll be no bother.
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Old 01-16-2009, 09:56 AM   #6
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Brian,
Pressures will depend on what kind of track your riding.
True Supermoto w/ dirt sections = 24 front & 22 rear cold
Road Course (no dirt) = 26 front & 24 rear cold

I would check the pressure directly off the track after the second session, your looking for 30 front & 28 rear. If you have ANY questions while at the track do not hesitate to call me (281) 703-0296. No question is too small.

John
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Old 01-16-2009, 10:01 AM   #7
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Quote:
Originally Posted by kawi jm View Post
Brian,
Pressures will depend on what kind of track your riding.
True Supermoto w/ dirt sections = 24 front & 22 rear cold
Road Course (no dirt) = 26 front & 24 rear cold

I would check the pressure directly off the track after the second session, your looking for 30 front & 28 rear. If you have ANY questions while at the track do not hesitate to call me (281) 703-0296. No question is too small.

John
Bingo! Great, and yes im going to be on all asphalt, no dirt. Taking her out to OMC Kart track in Norman, Oklahoma and give her a beating.

Thanks everyone!
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Old 01-16-2009, 10:06 AM   #8
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Quote:
Originally Posted by kawi jm View Post
Brian,
Pressures will depend on what kind of track your riding.
True Supermoto w/ dirt sections = 24 front & 22 rear cold
Road Course (no dirt) = 26 front & 24 rear cold

I would check the pressure directly off the track after the second session, your looking for 30 front & 28 rear. If you have ANY questions while at the track do not hesitate to call me (281) 703-0296. No question is too small.

John
wowser, a little higher than what i've been told and what i've ran in the past but nevertheless, i didn't ever run into any problems either.

Have fun in OK Brian.
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Old 01-16-2009, 10:10 AM   #9
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Quote:
Originally Posted by Brian f. View Post
Bingo! Great, and yes im going to be on all asphalt, no dirt. Taking her out to OMC Kart track in Norman, Oklahoma and give her a beating.

Thanks everyone!
Well if it is THAT cold, lower the pressure 2 psi front & rear. For example if the ambient temp is 50 dge F - 40 deg F lower 1 psi from reccomended pressures. If it is below 40 deg F lower 2psi from recommended pressures.

Stay warm up there!
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Old 01-16-2009, 10:18 AM   #10
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Quote:
Originally Posted by CarbonJames View Post
wowser, a little higher than what i've been told and what i've ran in the past but nevertheless, i didn't ever run into any problems either.

Have fun in OK Brian.
They can be ran lower in certain circumstances, but if you run them too low, you can start to experience chatter. If the tire is chattering (front or rear) add 2 psi to the tire. There is a max air pressure of course, but most chatter issues can be corrected this way. Usually 2-4 psi will correct it.
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Old 01-16-2009, 10:21 AM   #11
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Brian, are you using tubes or not? i don't know if that makes a difference but i run tubeless
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Old 01-16-2009, 10:23 AM   #12
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Quote:
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Brian, are you using tubes or not? i don't know if that makes a difference but i run tubeless
James, what tires are you running and on what bike?
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Old 01-16-2009, 10:26 AM   #13
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Quote:
Originally Posted by kawi jm View Post
James, what tires are you running and on what bike?
on the KX100 i run the Dunlop qualifier in front and the D something in the rear.
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Old 01-16-2009, 11:12 AM   #14
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Quote:
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on the KX100 i run the Dunlop qualifier in front and the D something in the rear.
Tire pressures are going to be different on those fo sho
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Old 01-17-2009, 12:22 AM   #15
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Thanks for the extra tip about the temps and tire pressure Kawi Jim. High of 58 here tommorrow, i will keep and eye on things.

Carbon james, tubes or not.....i hate to amit it but i dont even know!?!?!??! Just picked this bike up last weekend and this is how she sat and i didnt think to ask, you know how it is.


And last.................we went and picked up an 2006 KTM 450 SMR tonight for my buddy, we are also taking it out tommorrow. It has Dunlop slicks on it currently (of course, once again, im not sure the model tire for sure, we were so busy wrenchin on it tonight). How different are tirre psi for the Lops (i do know it was a 165 rear for sure), or just start him out where im starting with the stones?

Sorry for the questions, thanks for all the help
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Old 01-17-2009, 12:56 AM   #16
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I really don't know for sure, but I think they were running the lops pretty close to the Bridgestone pressures.
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Old 01-17-2009, 06:16 AM   #17
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Quote:
Originally Posted by kawi jm View Post
I really don't know for sure, but I think they were running the lops pretty close to the Bridgestone pressures.
I ran around 24/24 psi in the front/rear of them Dunlop slicks.....
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