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GP4000 w/ chili vs GP4000 vs Michi PR2's

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GP4000 w/ chili vs GP4000 vs Michi PR2's

Old 08-05-07, 12:26 PM
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GP4000 w/ chili vs GP4000 vs Michi PR2's

I've preferred Michi ProRace 2's to Conti GP 4000 b/c they seem grippier, and seem to square off less quickly.

Now Conti has (acc to Conti site) :

GP4000 tyre with the new Black Chili compound. Black Chili gives a lower rolling resistance and higher grip making it an ideal secret weapon for the seasons main objective

* The new tread:-
* With the new Black Chili Compound rolling resistance is reduced by 26%, grip is increased by 30% and mileage is increased by 5%.
* Features new tread wear indicators to help riders gauge the life of their GP4000 tyre.
* You don't lose mileage performance by prematurely replacing the tyre.
* You don't risk safety by using the tyre beyond its tread service life.
* Vectran anti-puncture technology, tougher than aramid.
* Weight: 205gms.
* Size 700c x 23mm.
* Maximum Pressure: 125 psi.

Black Chili is the name for our new compound for road & MTB race tyres. Using carbon nano particles, we are able to make a softer compound on any given tyre without sacrificing the wear rate of the tread.
Each particle of the filler agent (carbon) is only 1/10th of the size of standard carbon black particles. To give you an idea of their size, our Black Chili particles are the same size in relation to a soccer ball, as the soccer ball would be to the earth.

What this means is that the tyre has more points of contact with the road/trail surface for improved grip, and they are also more closely bound with each other ensuring that premature wear of the tyre tread is avoided. We can then make a compound softer, without losing any wear capabilities. In tests conducted at our R&D facility, tyres containing Black Chili are also rolling faster than conventional tyres making them an absolute must for the serious racing cyclist.


Anybody tried any of these w/ chili compound yet?
I'm deciding between Michi PR2's and the Conti GP 4000 w/ chili for performance tire.
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Old 08-05-07, 12:29 PM
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looked at them in the store. The Conti's are slicker than dog sh*t and I will not be buying them. The P2's
at least seem to have a better grip. I have used P2's by the way.

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Old 08-05-07, 12:34 PM
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Originally Posted by NFields View Post
looked at them in the store. The Conti's are slicker than dog sh*t and I will not be buying them. The P2's
at least seem to have a better grip. I have used P2's by the way.

NFields
You based your buying decision on how the tires felt in the store? That's ridiculous. I've used GP4000's on winding 40-mph descents and I'm guessing if my 200-lb azz can do that with them there's not much value in your finger test.

Both the GP4000's and the PR2's are great tires. The GP4000's are a little less supple than the Pro2's but not by much. I always felt more confident in wet conditions with the GP4000's, though--this might just be a personal bias. The GP4000's are also slightly more durable IMHO. I've used both for a couple thousand miles of training and racing.

I'm waiting for some of the Competition Tubulars with the Chili compound from PBK--I'm looking forward to giving them a shot.
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Old 08-05-07, 01:36 PM
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I'm running the Continental Competition Tubular (with Chili) right now. They seem OK.... Very Grippy. I only have ~400km on them so far, so durability is not yet determined.


I really like the Michelin PR2, I only wish the Black was really Black
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Old 08-05-07, 03:23 PM
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Hi you should be comparing the Continental GP 4000S to the Michelin Pro 2 Race "Limited Edition"
not to the standard pro2race tire.

https://www.bicycling.com/article/1,6...5688-1,00.html
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Old 08-05-07, 03:27 PM
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Originally Posted by kleng View Post
Hi you should be comparing the Continental GP 4000S to the Michelin Pro 2 Race "Limited Edition"
not to the standard pro2race tire.

https://www.bicycling.com/article/1,6...5688-1,00.html
OK, I'll start. The GP4000s isn't ugly as ****.
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Old 08-05-07, 03:28 PM
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Originally Posted by DrPete View Post
OK, I'll start. The GP4000s isn't ugly as ****.
+1. What were they thinking?
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Old 08-05-07, 03:49 PM
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I'm wondering the same thing. I want new tires, and I'm drawn to the Black Chili's and the Pro2's. Right now I already have a new set of 20mm Pro2's, so the Chili's could be something different.
Now, does anyone know when the Pro3 race is coming out?
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Old 08-05-07, 06:32 PM
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I have a new set of GP4000S. Have ridden them 3-4 times. I have only ridden Pro Race 2's before so I am very familiar with them. Don't be scared of the grip on the Conti's. It's excellent. I won't say that either tire is better than the other, I think they are pretty comparable. I'm waiting to see if the Conti's are as durable as the Pro Race 2, if they are I'll probably buy which ever one I can get the best deal on.
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Old 08-05-07, 07:33 PM
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Looks like PBK has both GP 4000 and 4000S w/ chili technology. Other than looks, any diff between the 2 other than $$?

4000: https://probikekit.com/display.php?code=Y1015
4000s: https://probikekit.com/display.php?code=y1014
4000 without chili: https://probikekit.com/display.php?code=Y1338
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Old 08-05-07, 08:15 PM
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Originally Posted by NFields View Post
looked at them in the store. The Conti's are slicker than dog sh*t and I will not be buying them. The P2's
at least seem to have a better grip. I have used P2's by the way.

NFields
The GP4000's come with a nice coating of mold release, thats why they seem so slick in the package. Once you get them mounted, ride them for a bit (or wipe off the mold release) they are nice and sticky
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Old 08-05-07, 08:18 PM
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Originally Posted by nitropowered View Post
The GP4000's come with a nice coating of mold release, thats why they seem so slick in the package. Once you get them mounted, ride them for a bit (or wipe off the mold release) they are nice and sticky
-did you get the 4000 or 4000s's
-have you ridden Michi ProRace 2's for comparison?
-estimate of durability of the 4000's
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Old 08-05-07, 08:19 PM
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I found that PR2 wear faster and are more flat prone than GP4000. Have not tried the Chilli compound yet.
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Old 08-05-07, 08:23 PM
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chili? mold?

Are we talking about tires or lunch?
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Old 08-06-07, 01:18 AM
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Originally Posted by DrPete View Post
OK, I'll start. The GP4000s isn't ugly as ****.
If you want the performance, you'll have to cop the color for now.
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Old 08-06-07, 07:24 AM
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Anybody else think the Conti GP 4k tires seem to have more uniform roundness than Michi PR2's?
I like the grippiness of the PR2's though. Perhaps this new chili technology is worth trying, albeit $$$
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Old 08-06-07, 07:24 AM
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Originally Posted by TCR View Post
chili? mold?

Are we talking about tires or lunch?
Mold as in Tire mold (the big metal things that they pour rubber into), not the fuzzy blue things that start to appear on your sandwich that you forgot you took in for lunch a week ago.

They spray this stuff so the tire tread will pop out after its cured, hardened, (or whatever the proper term is). Kinda like spraying Pam on your skillet so your pancakes dont stick to it.

Back to the thread, I haven't tried the chili compound yet. I need new tires soon so I will be getting them shortly. But I have compared Competition Tubulars with and without the chili. The Competitions with the Chili did seem a little bit stickier
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Old 08-06-07, 07:51 AM
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I've ridden the Pro Race 2's and currently ride the GP4000 tire. The GP4000 is not slick at all and corners quite well. Personally, I thought the PR2's wore out quicker than the GP4000. I haven't tried the GP4000s yet but when I wear out my current tires I'll definitely give them a try.
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Old 08-06-07, 08:32 AM
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I ride the GP4000 and my riding partner recently got a set of the 4000S. He said they feel a bit better to him than the standard 4000 but maybe not enough to pay the additional cost. We will have to see about durability since he only has about 800 miles on them. I usually get at least 3000mi on by 4000, so the chili would have get an additional 1500 or so to be worth the additional cost to me. I have not use the PR2's so no comment on differences.
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Old 08-06-07, 08:37 AM
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I'm a GP4000 ho myself.
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Old 08-06-07, 08:43 AM
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I'm gonna wait till the colder months before I try the chili.
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Old 08-06-07, 10:00 AM
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A guy on my team runs a gp4000s on the front and mpr2 on the back. I think I may try this, what do you guys think?
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Old 08-06-07, 10:02 AM
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Originally Posted by predat0r View Post
A guy on my team runs a gp4000s on the front and mpr2 on the back. I think I may try this, what do you guys think?
Why this combo?
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Old 08-06-07, 10:13 AM
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Originally Posted by TCR View Post
I'm gonna wait till the colder months before I try the chili.
You can eat chili unheated. Spicy chili is great this way in the summer.
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Old 08-06-07, 11:06 AM
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Originally Posted by nitropowered View Post
Back to the thread, I haven't tried the chili compound yet. I need new tires soon so I will be getting them shortly. But I have compared Competition Tubulars with and without the chili. The Competitions with the Chili did seem a little bit stickier
I have a few pairs of the Continental Competitions with Chili, and a pair of the Continentals with out... Functionally I can't tell the difference between the 2 by looks or feel. In fact I placed a felt pen mark on the Non Chilli's just to keep them straight.

Looking at the Chilli's on my bike last night, after 400km, they are starting to to square slightly. The file pattern is not as sharp as the front, and you can feel the flats with your hands. I would bet on the road the difference the Chili compound makes would be marginal, and barely imperceivable.


Back to the clinchers, Between my PR'2s and Conti A/F, 4000, I think I like the PR2 more for road feel and grip, plus they seem to be lasting forever.... Not that they are Chilli, or the 4000S.
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