Pirelli P Zero TLR tubeless

[jlok]

Guessing here but perhaps the pointed shape is more aerodynamic while also putting more rubber in the center (more life and better puncture protection) and keeping RR low. I'm sure there's multiple ways to skin this cat, but im sticking with these Pirelli RS going forward. I only ever bought the 4000 s2 and 5000 and 5000 S TR so it's good to have a worthy competitor that has a few advantages at a very small trade-off

I actually like the Race clinchers and I put it at front wheel with latex tubes. The width matches my wheel quite well. The dry grip is great, and due to the pointy profile, the bike becomes very responsive when changing the lean angle. The feedback in technical descents / curve is great. I love it for dry days but will be very careful when wet. I don't like it on the rear b'cos even when I lowered the pressure, the rear still skipped when climbing in wet. If the RS has the same pointy profile, I think it will have similar traits.

Visually, you can use the water puddle method to compare different profiles and see how pointy relatively speaking. Or, use a vernier caliper and see where the widest points of the sidewall touch the caliper. Let's say the Race is at the extreme end of pointy profile, then Maxxis High Road is at the other extreme end of rounded profile, just as an example. Guess what? The High Road has the best wet grip in my experience (but it's RR is high AF).

Maybe I should have purchased the RS before speaking, but the BRR wet grip test could have its flaw. Be careful.

There are so many factors at play, one should be careful in making predictions. The tire thickness in the RS is clearly lower than e.g. in the Race TLR Speedcore and other 28c Pirellis (and a lot thinner than, e.g. the GP5000 clincher version), which should affect the deformation under load as is rider weight. Unless there is data showing a nonlinear increase/decrease of the contact patch whith cornering angle, this is all speculation.

Be careful is exactly what I mean, because... the reverse is also true. Be careful when one predicts the real world wet grip would be as good as testing on the drum. The wet grip test result has its flaw and is exposed with the clincher model. So..... be careful.

[cleanneon98]

What flaw is that?

[jlok]

What flaw is that?

BRR wet grip test figures not always reflecting real world performance.

For example, the Race 4S 26 is tested more grippy than Corsa Control G2.0, but in real world usage the reverse is true.

[208]

What flaw is that?

BRR wet grip test figures not always reflecting real world performance.

For example, the Race 4S 26 is tested more grippy than Corsa Control G2.0, but in real world usage the reverse is true.

How do you know the reverse is true?

[jlok]

What flaw is that?

BRR wet grip test figures not always reflecting real world performance.

For example, the Race 4S 26 is tested more grippy than Corsa Control G2.0, but in real world usage the reverse is true.

How do you know the reverse is true?

From my friend and my own experience. We climb and descend the same hill all the time, rain and shine. We swap tires often to see which is the grippiest. I purchased the Race 4S specifically for the wet grip but it really disappointed, not even close to Corsa Control G2.0. That's why I'd suggest taking caution with the BRR wet grip results of the PZero TLR RS, as I assumed that the tire profile is the same as the Race 4S clincher.

Again, just be careful when wet. I say it because I'm worrying about other users trusting too much into the wet grip figures and end up with undesired situation. I am not saying it is a bad product and please don't take it personal. My apology if my saying is unpleasant to anyone. This would be the end of my multiple posts here for the wet grip concern.

[TobinHatesYou]

From my friend and my own experience. We climb and descend the same hill all the time, rain and shine. We swap tires often to see which is the grippiest. I purchased the Race 4S specifically for the wet grip but it really disappointed, not even close to Corsa Control G2.0. That's why I'd suggest taking caution with the BRR wet grip results of the PZero TLR RS, as I assumed that the tire profile is the same as the Race 4S clincher.

Again, just be careful when wet. I say it because I'm worrying about other users trusting too much into the wet grip figures and end up with undesired situation. I am not saying it is a bad product and please don't take it personal. My apology if my saying is unpleasant to anyone. This would be the end of my multiple posts here for the wet grip concern.

How long ago was this? The Hutchinson-made 4S scored 71 in edge grip, which is average at best. The Hutchinson-made P Zero Race clincher scored 60 in edge grip, which is downright bad. My SpeedCore P Zero Race TLRs are fantastic in the wet.

[jlok]

From my friend and my own experience. We climb and descend the same hill all the time, rain and shine. We swap tires often to see which is the grippiest. I purchased the Race 4S specifically for the wet grip but it really disappointed, not even close to Corsa Control G2.0. That's why I'd suggest taking caution with the BRR wet grip results of the PZero TLR RS, as I assumed that the tire profile is the same as the Race 4S clincher.

Again, just be careful when wet. I say it because I'm worrying about other users trusting too much into the wet grip figures and end up with undesired situation. I am not saying it is a bad product and please don't take it personal. My apology if my saying is unpleasant to anyone. This would be the end of my multiple posts here for the wet grip concern.

How long ago was this?

Last season. The 4S was Made in Italy. Apart from Corsa Control G2.0, I also compared it with the new High Road (very round profile; thin side wall; light and supple, grippy; high RR). All are 28mm variant and installed on the rear wheel. Now I use 26mm P Zero Race at the front for the fantastic turn in speed and great dry grip in the curve. Again, all these are just heads up based on my assumption of the RS having the same profile as the clincher; not here to defame any product or any test protocol.

After your edit:

How long ago was this? The Hutchinson-made 4S scored 71 in edge grip, which is average at best. The Hutchinson-made P Zero Race clincher scored 60 in edge grip, which is downright bad. My SpeedCore P Zero Race TLRs are fantastic in the wet.

I was referring to the Made in Italy 4S results https://www.bicyclerollingresistance.co ... ro-race-4s

It scores higher wet grip than Corsa Control G2.0 but the real-world experience is the reverse.

That's good to hear that the SpeedCore Race TLR has great wet grip. Hopefully the RS would be even better.

[208]

Out of curiosity, anyone knows how the profile of the tyre affects comfort, if at all?

[TobinHatesYou]

Good catch, my error. Bike Discount does expect stock of 35mm and 40mm in two weeks though.

Hopefully the RS 35mm availability will be better/sooner.

Non-RS 35mm available now at a few Italian shops.

https://www.gambacicli.com/en/pirelli-p ... italy.html

[ColonelMustard]

I went for the TLR RS 28mm front and 30mm rear. My rims are 23mm inner width, 31mm outer width. After one ride, appx 65km, at 54psi the front 28mm tyre measures 29.6mm, and the rear 30mm tyre measures 32.4mm!

Looking at the charts on the 2 boxes I received it seems the measurements are all over the place.

I love the way they feel, they dampen the road chatter/vibrations nicely. They are also very quiet.

I was thinking of trying the GP 5000 S TR but my experience of the tube type GP4000SII and then GP5000 (punctures, sidewall blowout, rough feeling ride) was putting me off, so went with the Pirellis. +1 Watt per tyre vs the S TR, but for the added rubustness and comfort it's worth it imo.

[BigBoyND]

Wow the sizing does seem to be all over. I wonder what the 32mm measures on a 22IW. 33-34mm?!

[TobinHatesYou]

Both those tables are off by 1mm compared to their press packet, so I wonder which is intended to be the final figure.

[208]

anyone got any word on comfort of tlr rs vs conti s tr?

[razorree]

I just bought P Zero TLR 28mm Speedcore and I'm really dissapointed.
28mm model measures ~26.5mm on 19mm inner width rim !! (the same was with P Zero Race 28 TLR TechWall)

whereas other tires, Conti GP5000 or even Pirelli P Zero Road on the same rim have ~28.5-29mm !!!
should I buy 30mm model to have correct 28-29mm tire ??

[cleanneon98]

anyone got any word on comfort of tlr rs vs conti s tr?

I went from S TR to TLR RS and to me the Pirelli rides better. Did about 10 miles of chip seal which was laid down 2-4 weeks ago in various places and they just glide over it with minimal buzz