Motorcycle Racing Forum

Motorcycle Racing => Wrenching => Topic started by: H-man on January 08, 2007, 01:31:03 PM

Title: Michelin Tire Question
Post by: H-man on January 08, 2007, 01:31:03 PM
Aside from the compound ratings of soft, medium-soft, medium, etc, I understand that Michelin's DOT race tire the Power Race has PR1, PR2 and PRC codings.

I've heard the PRC tires are only available from trackside ventors.

So here's my question, is there a noticable difference with the PRCs?  I don't just mean "yeah, they're grippy as hell and will knock seconds off lap times."  I'm wondering: (a) is the tire profile is different (from the PR1 or PR2 Power Race tires)?; (b) has anyone experienced greater difficulty/ease setting up their bike when using the PRCs?  (c) has anyone experienced greater difficulty/ease with stability or cornering when using the PRCs?

Feel free to share other aspects I may have omitted.

TIA
Title: Re: Michelin Tire Question
Post by: Super Dave on January 08, 2007, 01:43:45 PM
I did not care for the PR1/2 myself.  I wanted the old S2, etc. after using them.  PRC is really, really good.  It is more like the old S2 style tire. 

Might be new tires later this year.

And the Pilot Power is really good. 
Title: Re: Michelin Tire Question
Post by: H-man on January 08, 2007, 02:30:38 PM
Thanks for the comeback SD.

Quote from: Super Dave on January 08, 2007, 01:43:45 PMAnd the Pilot Power is really good. 


I agree COMPLETELY about the Pilot Powers!  That's all I used last year.  Figured I'd follow the advice of a number of others and try out the full race DOTs.    Except when the ambient temp. is below 50.  Then I'll use the PPs  :thumb:

Title: Re: Michelin Tire Question
Post by: benprobst on January 08, 2007, 06:26:08 PM
yes, the PRC's are significantly better than the 1s and 2s. They require a different set up, they are very triangular in shape compared to the round 1 and 2. I ran mostly slicks on my superbike sv all year, but a few times we rode the ss sv in endurance races, and once or twice I rode a PR1 back to back with a PRC and there really wasnt much comparison. and +1 on the PP i won more races on those than I did on slicks last year.
Title: Re: Michelin Tire Question
Post by: 251am on January 08, 2007, 07:21:41 PM
Quote from: benprobst on January 08, 2007, 06:26:08 PM
yes, the PRC's are significantly better than the 1s and 2s. They require a different set up, they are very triangular in shape compared to the round 1 and 2.

+1           C front  & 5 rear

The ease of set up aspect is such a huge variable dependent on your/your suspension guy's experience. What're you running now?
Title: Re: Michelin Tire Question
Post by: mq105 on January 08, 2007, 09:04:16 PM
Your best bet is to talk to a Michelin rep and then try the tire. Tires are one of the most subjective aspects of riding/racing. The C is 9mm taller than the PR2, and is different in other ways as well. Closer to a discontinued Michelin tire ...

And that's what I think, or not...
Title: Re: Michelin Tire Question
Post by: Sobottka on January 08, 2007, 09:37:19 PM
if you can get a C, thats the one you want.   no problems... best dot hands down!
Title: Re: Michelin Tire Question
Post by: dylanfan53 on January 08, 2007, 09:59:14 PM
Hola H!
LIke someone said, The "c" profile is more triangulated.  Michelin went rounder (like Pirelli's) a couple years ago.  For me, the "c" profile was a welcome return since it felt like it flicked easier.  (I miss that aspect of the SV!)  I don't recall what tire you were on last year.
BTW, I never changed setup.  I realize the "c" is taller but it really wasn't much of a change on the SV. Soft front, #5 rear.  Tom Mason can hook you up.  612 250-9122.
   
Title: Re: Michelin Tire Question
Post by: H-man on January 09, 2007, 07:35:15 AM
Thanks to everyone for your genuine feedback  :thumb:

S'up Don!  Happy New Year my friend!   Ya know, that little scroll bar under your avatar is kinda interesting.  By sliding it back and forth, I can give your pic a little motion.  Not as impressive though as when you and Ed Key went flying around me in the sweeper  at Gingerman a couple years ago.  :biggrin:

Title: Re: Michelin Tire Question
Post by: Super Dave on January 09, 2007, 08:40:51 AM
More about the C and the 1/2.

The shape isn't my problem.  What bothered me the most was the movement of the carcass.  I found that I was uncomfortable enough that I dramatically increased tire pressure.  Then I even threw on an old rear (M2/S2), which is shorter than the new race tire.  That helped, but it still wasn't the tire that made me the happiest.

We made proper geometry changes to account for the front and rear changes the first time around also.
Title: Re: Michelin Tire Question
Post by: catman on January 09, 2007, 01:17:38 PM
GReat info -you guys seperate the 2 sites i watch by your willingness ! thanks - this is great, noobs should stay here!-john in victory gardens, thanks DAWN +
Title: Re: Michelin Tire Question
Post by: Sobottka on January 09, 2007, 03:15:04 PM
Quote from: dylanfan53 on January 08, 2007, 09:59:14 PM
Tom Mason can hook you up.  612 250-9122.
   

+1
Title: Re: Michelin Tire Question
Post by: paco on January 11, 2007, 10:14:25 PM
Were is this code at? I am looking at my tyres and do not see the "code" PR1/2 or C. Maybe I have some fake tyres.
Title: Re: Michelin Tire Question
Post by: Super Dave on January 12, 2007, 04:34:26 AM
It will be on the sides.

Might be PR1, PR2, PRC, S2, M2, H2, Medium Soft, etc.

Something like that.

It will be molded into the tire.
Title: Re: Michelin Tire Question
Post by: 251am on January 12, 2007, 08:10:39 AM
Quote from: Paco on January 11, 2007, 10:14:25 PM
Were is this code at? I am looking at my tyres and do not see the "code" PR1/2 or C. Maybe I have some fake tyres.

There's a lot of fake English Tyres around!! Find the model rubber you have? 
Title: Re: Michelin Tire Question
Post by: H-man on January 12, 2007, 08:54:46 PM
Quote from: Super Dave on January 12, 2007, 04:34:26 AM
It will be on the sides.

Might be PR1, PR2, PRC, S2, M2, H2, Medium Soft, etc.

Something like that.

It will be molded into the tire.

D'oh!   He didn't flash the secret hand sign first.  You may have given away classified info. :D
Title: Re: Michelin Tire Question
Post by: Super Dave on January 13, 2007, 08:16:57 AM
(http://graphics.boston.com/bonzai-fba/Third_Party_Photo/2005/12/14/1134594035_4687.jpg)
Double, secret probation for him.
Title: Re: Michelin Tire Question
Post by: H-man on January 13, 2007, 09:21:11 AM
Whoa!  This is troubling.  Dean Wormer is exactly who I was thinking when I wrote that.    :cheers:
Title: Re: Michelin Tire Question
Post by: Super Dave on January 13, 2007, 04:31:30 PM
Maybe we were separated at birth?
Title: Re: Michelin Tire Question
Post by: H-man on January 14, 2007, 12:31:56 AM
SD, you should know my brotha from anotha mutha  :thumb:
Title: Re: Michelin Tire Question
Post by: Scotty Ryan on January 16, 2007, 09:05:23 AM
If i can comment - I really like michelins - the problem i had with the PR1\2 was that the front tires were inconsistant. Fine one lap - on my ass the next - irreguareless of how we set the bike up. The new C was the greatest thing since sliced bread! And they wear like iron. The 5 rear is good if you need to do more then 10 laps. The 3 is perfect for individual spints,qualifying or sliding the bike around after the tire is gone. I recently tried a few 190 rears - and thats the way to go!