What is the best tire pressure for Sportec M1 on the street? - Honda Motorcycles - FireBlades.org
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post #1 of 20 Old 07-07-2004, 2:25 PM Thread Starter
 
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What is the best tire pressure for Sportec M1 on the street?

I really like the tires but am having difficulty figuring out what would the best tire pressure.
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post #2 of 20 Old 07-07-2004, 2:38 PM
 
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Re: What is the best tire pressure for Sportec M1 on the street?

32f/36r is what the metzler/pirelli rep told me.
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post #3 of 20 Old 07-07-2004, 2:52 PM
 
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Re: What is the best tire pressure for Sportec M1 on the street?

Agreed. Sounds about right. I think I've run 34f / 36r when touring (with gear) on the 954.
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post #4 of 20 Old 07-07-2004, 3:18 PM Thread Starter
 
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Re: What is the best tire pressure for Sportec M1 on the street?

Thanks guys Ill give that a try and see how I like it.
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post #5 of 20 Old 07-07-2004, 3:25 PM
 
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Re: What is the best tire pressure for Sportec M1 on the street?

32/36 for me too.
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post #6 of 20 Old 07-07-2004, 6:20 PM
 
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Re: What is the best tire pressure for Sportec M1 on the street?

Interesting responses... The manual says 36 psi front and 42 psi rear for both the oem B-stone 012's and the Michelin Pilot Sports..

Why would the Metzeler be different? I had a set of M1's on the 954 that seemed to work just great for the street at 34 to 36 F, 40-42 rear.

I'm NOT trying to start somethin'.... and I just put a set of Diablo Corsas on the 954 yesterday for limited street and mostly track use. I've got those set for 36/42 {and I need to put some tape on the tank to remind myself that they're new..} on the track I do whatever Trackoholic or Abtech recommends..

Last edited by CBRVFR; 07-07-2004 at 6:21 PM.
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post #7 of 20 Old 07-07-2004, 10:42 PM
 
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Re: What is the best tire pressure for Sportec M1 on the street?

I thought the pressures quoted in the manual were the ones to use if you had a passenger or lots of luggage? Aren't those the maximum allowable pressures for tires? I generally run 34/36 or 33/35 on the street, and 31/30 or 31/31 or 32/32 on the track. I've used these pressures with BT010s, Dunlop207ZR, Metzeler Sportecs, and Diablo Corsas.
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post #8 of 20 Old 07-07-2004, 11:07 PM
 
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Re: What is the best tire pressure for Sportec M1 on the street?

Quote:
Originally Posted by HondaGalToo
I thought the pressures quoted in the manual were the ones to use if you had a passenger or lots of luggage? Aren't those the maximum allowable pressures for tires? I generally run 34/36 or 33/35 on the street, and 31/30 or 31/31 or 32/32 on the track. I've used these pressures with BT010s, Dunlop207ZR, Metzeler Sportecs, and Diablo Corsas.

HGToo, for the 954 it says:

Cold tire pressure: (front) Up to 90kg (200 lb) load - 36psi
Up to maximum weight capacity 160Kg (353 lb) - 36 psi

It lists the same pressure (42 psi ) for the rear under both 200 lb and max 353 lb load.

I weigh a bit less than that, but what are the other attendent benefits and risks of running less pressure on the street?

(I know I'm running a risk of starting a fight here - a couple of guys on the vfrlist were about to kill each other over this issue and one guy insisted everything ran better at 46 psi......)

So please be clear that I'm not espousing a position. My daddy taught me; when in doubt, RTFM.

Last edited by CBRVFR; 07-07-2004 at 11:07 PM.
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post #9 of 20 Old 07-08-2004, 8:10 AM
 
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Re: What is the best tire pressure for Sportec M1 on the street?

Hey, CBRVFR! I haven't read over what the manual recommends in a long time, so I believe what you say. I personally run a bit lower pressures on the street (but not nearly as low as on the track) for the same reason pressures are lower on the track: better grip. I just feel more secure that way when riding the twisties. I don't run really low track pressures because hitting a pothole will cause a bent rim if track pressures are used on the street. If it's raining, I'd likely bump them up more, on track and street, to ensure that the rain grooves stay open and do their job. I just go off recommendations from riders I trust, who's advice I got quite a long time ago. So, it's just kinda ingrained to run the pressures that I do.
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post #10 of 20 Old 07-08-2004, 9:44 AM
 
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Re: What is the best tire pressure for Sportec M1 on the street?

the manual is way off, its a liability thing for the dude that runs 165 with his 225 lb ass riding two up with his 200lb GF...
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post #11 of 20 Old 07-08-2004, 9:56 AM
 
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Re: What is the best tire pressure for Sportec M1 on the street?

It's okay for weekend warriors to run lower than normal pressures. The extra wear on the tires doesn't add up to much, because they are only going to need 1-2 sets a year anyway. Plus it's good mental masturbation...makes them feel racy.....

Sport touring riders routinely run 36/42 or even HIGHER pressures...better tire life and resistance to hydroplaning....

Tire pressure...like tire choice, all depends on how you are going to use the bike.....

Ymmv....flame away...

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CBR929 - VFR800 - VFR800
"There is a grey blur, and a green blur. I try to stay on the grey one..." - Joey Dunlop
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post #12 of 20 Old 07-08-2004, 10:22 AM
 
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Re: What is the best tire pressure for Sportec M1 on the street?

Does anyone take there weight into account? I weight 190-200lbs without gear and usually run 34/36 in my michelin pilot sports, I find that if i go much below 32/33 the bike feels really vague (poor feedback) and walks around a lot on the tyres!

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post #13 of 20 Old 07-08-2004, 11:27 AM
 
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Re: What is the best tire pressure for Sportec M1 on the street?

It's always a tradeoff. Manual pressures are liability pressures.

Good street pressures for a single rider are in the 33-36 range. The 36-42 range would be more suitable for two up or touring. Track pressure 29-30 except Corsas.

The tradeoff is fairly simple. Higher pressure equals better tire wear and better "handling", the bike turns real easy with higher pressure. The tradeoff comes because the contact patch is smaller and there is less sidewall flex, so the traction is limited both by less contact and a compound that stays cold. Thus 30 on the track and much higher on the street. I used to run 32 on the street, but I run higher now. Among other things, you can not go fast on the street ( not like on the track) and I have bent a rim on a pothole at 30 psi.

ernie
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post #14 of 20 Old 07-08-2004, 3:40 PM
 
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Re: What is the best tire pressure for Sportec M1 on the street?

Quote:
Originally Posted by Ernie
Track pressure 29-30 except Corsas.

OK, I'll ask.. what about Corsas? I assume you mean SuperCorsa race compound..

I appreciate the input, everybody.
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post #15 of 20 Old 07-08-2004, 3:52 PM
 
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Re: What is the best tire pressure for Sportec M1 on the street?

I emailed pirelli before and they recommended higher pressures for the diablo corsas on the track than the supercorsas. They recommended 36f 34 r at the time. While the supercorsas are usually run at 31f 29r
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