Pirelli P Zero TLR tubeless

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spartan
Posts: 1807
Joined: Fri Sep 03, 2004 2:52 am

by spartan

tour mag data. sorry pirelli fan boys. you are mediocre


Jaisen wrote:
Thu May 16, 2024 11:21 pm
BalticSea wrote:
Thu May 16, 2024 10:06 pm
BigBoyND wrote:
Thu May 16, 2024 3:43 pm
208 wrote:
Thu May 16, 2024 3:18 pm
Don't know how true or not this video is.
Spoiler: it's not
It's not because of what reason? Just because it doesn't support BRR's data?
The Aerocoach and BRR data both agree with each other, this test data does not. Makes you question why their results are inconsistent with the other two.
Attachments
tirerr.png
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BalticSea
Posts: 53
Joined: Wed Aug 30, 2023 5:51 pm

by BalticSea

Jaisen wrote:
Thu May 16, 2024 11:21 pm
BalticSea wrote:
Thu May 16, 2024 10:06 pm
BigBoyND wrote:
Thu May 16, 2024 3:43 pm
208 wrote:
Thu May 16, 2024 3:18 pm
Don't know how true or not this video is.
Spoiler: it's not
It's not because of what reason? Just because it doesn't support BRR's data?
The Aerocoach and BRR data both agree with each other, this test data does not. Makes you question why their results are inconsistent with the other two.
Maybe because all three tests use different methodology and equipment perhaps (different drums, wheels, Aerocoach uses rollers, different PSI across tests).

Also, Aeroach shows that 24mm Turbo Cotton is measurably faster than 25mm GP5000 S TR, BRR shows that Conti is much faster. Which one is right?

by Weenie


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mrlobber
Posts: 1960
Joined: Sat Oct 23, 2010 9:36 am
Location: Where the permanent autumn is

by mrlobber

BalticSea wrote:
Fri May 17, 2024 8:00 am
Also, Aeroach shows that 24mm Turbo Cotton is measurably faster than 25mm GP5000 S TR, BRR shows that Conti is much faster. Which one is right?
On BRR testing, the tyres are actually at least equal because S TR was tested as tubeless while Turbo Cotton is clincher, and BRR tests with a butyl tube, which adds 2 watts at least.
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BalticSea
Posts: 53
Joined: Wed Aug 30, 2023 5:51 pm

by BalticSea

mrlobber wrote:
Fri May 17, 2024 9:06 am
BalticSea wrote:
Fri May 17, 2024 8:00 am
Also, Aeroach shows that 24mm Turbo Cotton is measurably faster than 25mm GP5000 S TR, BRR shows that Conti is much faster. Which one is right?
On BRR testing, the tyres are actually at least equal because S TR was tested as tubeless while Turbo Cotton is clincher, and BRR tests with a butyl tube, which adds 2 watts at least.
Another example: Aerocoach data shows that Veloflex Corsa Race TLR is faster than Specialized S Works Turbo Rapidair (a dumb name IMO) TLR, but BRR shows otherwise.

The thing is, both data sets are from lab tests with quite a few discrepancies, and they may be not necessarily representative of real world performance. Flat belt (instead of a drum) would be better for testing rolling resistance in a lab setting, but even such testing might show quite different result from real world.

BigBoyND
Posts: 1546
Joined: Mon May 31, 2021 1:51 am
Location: Berlin, DE

by BigBoyND

BalticSea wrote:
Fri May 17, 2024 8:00 am
Also, Aeroach shows that 24mm Turbo Cotton is measurably faster than 25mm GP5000 S TR, BRR shows that Conti is much faster. Which one is right?
Checks out. Aerocoach uses latex and BRR uses standard thick butyl.

BigBoyND
Posts: 1546
Joined: Mon May 31, 2021 1:51 am
Location: Berlin, DE

by BigBoyND

BalticSea wrote:
Fri May 17, 2024 9:59 am
The thing is, both data sets are from lab tests with quite a few discrepancies, and they may be not necessarily representative of real world performance. Flat belt (instead of a drum) would be better for testing rolling resistance in a lab setting, but even such testing might show quite different result from real world.
Hysteresis is hysteresis. Some tests are better than others but all should provide similar ranking. There might be a small change in the precise order of similar tires, but the leaderboard will never flip upside down to put the P Zero near the top.

Basscadet
Posts: 74
Joined: Thu Aug 12, 2021 2:38 pm

by Basscadet

TobinHatesYou wrote:
Thu May 16, 2024 10:01 am
BigBoyND wrote:
Thu May 16, 2024 6:12 am
thirdsun wrote:
Wed May 15, 2024 10:00 am
To me the huge selling point of the P Zero range is the balance of good rolling resistance and puncture protection.
Are we looking at the same BRR data? The P Zero has worse rolling resistance than an AS TR.

It's basically a 4 season tire, not mych of a quick training tire.

To me the P Zero Race TLR w/Speedcore has a better ridefeel than the 3-ply GP5K S TR, let alone the 4-ply AS TR. The P Zero also has a thicker tread cap and better tread puncture resistance. This should also mean punctures will be easier to seal.
Thousands of miles on both of these tires and could not agree more. I'm done putting GP5K S TR's on my bikes, the Pirellis are better in every single way. If there is any difference in RR it sure as hell is a) not perceptible and b)not being reflected in any of my Strava segments.

These tires are legit.

208
Posts: 318
Joined: Wed Apr 26, 2023 6:57 pm

by 208

My personal experience was that 28mm gp5kstr were too fragile and got cuts in them very quickly and very deep.

Pzero tlr in 28mm and now 30mm have both been significantly more durable. No difference in speed for me, but all my best times are on the pzero.

Not tied to any brand, wanted to try criterium rs in 30mm, but I reckon I'm going 32mm next, so might try either gp5kas or pzero rs.

nunokas
Posts: 170
Joined: Tue Aug 26, 2014 3:18 pm

by nunokas

208 wrote:
Sat May 18, 2024 3:09 pm
My personal experience was that 28mm gp5kstr were too fragile and got cuts in them very quickly and very deep.

Pzero tlr in 28mm and now 30mm have both been significantly more durable. No difference in speed for me, but all my best times are on the pzero.

Not tied to any brand, wanted to try criterium rs in 30mm, but I reckon I'm going 32mm next, so might try either gp5kas or pzero rs.

I'm an happy camper with these p zero race "speedcore" in 30mm. I liked a lot the previous "hutchinson" version but these are more supple, outstandig grip even in wet conditions and great durability 8)

Mocs123
Posts: 883
Joined: Tue May 11, 2021 9:19 pm

by Mocs123

Isn't there a new P-Zero TLR that was released in the past week or so? The one the pro's have been riding marked "Prototype"?
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ice29
Posts: 58
Joined: Mon Sep 21, 2020 9:15 pm

by ice29

2.5 months old P Zero TLR ... I had this problem 2 years ago when I rode them last time (GP5000 in between), thought they had solved this (friends had similar problems in the past)
IMG_2873.jpeg

208
Posts: 318
Joined: Wed Apr 26, 2023 6:57 pm

by 208

Mocs123 wrote:
Sat May 18, 2024 6:46 pm
Isn't there a new P-Zero TLR that was released in the past week or so? The one the pro's have been riding marked "Prototype"?
pzero tlr rs

TobinHatesYou
Posts: 13012
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

ice29 wrote:
Sun May 19, 2024 4:32 am
2.5 months old P Zero TLR ... I had this problem 2 years ago when I rode them last time (GP5000 in between), thought they had solved this (friends had similar problems in the past)

IMG_2873.jpeg
Does it say Made in Italy or Made in France?

ice29
Posts: 58
Joined: Mon Sep 21, 2020 9:15 pm

by ice29

TobinHatesYou wrote:
Sun May 19, 2024 4:45 am
Does it say Made in Italy or Made in France?
Made in Italy, I made sure to buy the new version...

BigBoyND
Posts: 1546
Joined: Mon May 31, 2021 1:51 am
Location: Berlin, DE

by BigBoyND

Basscadet wrote:
Sat May 18, 2024 8:12 am
Thousands of miles on both of these tires and could not agree more. I'm done putting GP5K S TR's on my bikes, the Pirellis are better in every single way. If there is any difference in RR it sure as hell is a) not perceptible and b)not being reflected in any of my Strava segments.

These tires are legit.
I've also moved on from GP5k, after discovering supple ride feel. But something like the Power Cup and Pro Corsa have both ride feel AND excellent rolling resistance. I hope the RS will be in that ballpark now. Surely we will find out within a month or two from BRR.

Will the RS be offered in 35mm and 40mm like the non-RS? And in classic color?

by Weenie


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