Pirelli P Zero TLR tubeless

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AsphaltAddict
Posts: 37
Joined: Fri Nov 17, 2023 6:57 pm

by AsphaltAddict

Which tubeless pressure (bar or PSI) would you recommend for comfort on bumpy roads, if speed is not the highest priority (recreational endurance ride)?
I got 30 C Pirelli P Zero Race TLR on Light Bicycle AR45 hooked rims (21 mm inner width), weight 69 kg rider + 9 kg bike. Sealant is Orange Seal.

The recommended 5,3 bar (75 psi) from Pirelli is too high, it is rather uncomfortable, especially on the bad tarmac with some potholes or cobblestones.

raisinberry777
Posts: 351
Joined: Wed Jul 30, 2014 1:09 am

by raisinberry777

Best to use the SRAM or Silca calculators to find an appropriate pressure.

At same weight as you and same tyres (but on 24mm inner width rims) I am running 55psi.

by Weenie


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AsphaltAddict
Posts: 37
Joined: Fri Nov 17, 2023 6:57 pm

by AsphaltAddict

raisinberry777 wrote:
Mon Apr 01, 2024 9:53 pm
Best to use the SRAM or Silca calculators to find an appropriate pressure.

At same weight as you and same tyres (but on 24mm inner width rims) I am running 55psi.
Thanks, this was helpful! I guess the recommended pressure by Pirelli is for people who use it with tubes (which is also possible, if pointless with TLR tires).
I will try out the 55 psi next ride and am glad to hear that this seems to work safely.

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

by BigBoyND

Just use Silca

208
Posts: 317
Joined: Wed Apr 26, 2023 6:57 pm

by 208

raisinberry777 wrote:
Mon Apr 01, 2024 9:53 pm
Best to use the SRAM or Silca calculators to find an appropriate pressure.

At same weight as you and same tyres (but on 24mm inner width rims) I am running 55psi.
Mind if I ask how wide your tyres blow out to be on your 24mm internal rims?

fulton
Posts: 47
Joined: Wed Sep 13, 2023 8:52 pm

by fulton

Hello, what real measured width does the Pirelli P Zero Race TLR 28mm tyre take on a 22C rim and at what psi?

My GP5000 tubes version , 22C rim: 29.5mm at 73 PSI.
has anyone here changed from the gp5000 (tudbes) to it? what is your experience with pirelli?

TobinHatesYou
Posts: 13009
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

fulton wrote:
Wed Apr 17, 2024 8:12 am
Hello, what real measured width does the Pirelli P Zero Race TLR 28mm tyre take on a 22C rim and at what psi?

My GP5000 tubes version , 22C rim: 29.5mm at 73 PSI.
has anyone here changed from the gp5000 (tudbes) to it? what is your experience with pirelli?

29.5mm on a 23mm rim at 60psi.

So on a 22mm rim at 73psi, I’d guess around 29.2mm.

fulton
Posts: 47
Joined: Wed Sep 13, 2023 8:52 pm

by fulton

Thank you

stevesbike
Posts: 333
Joined: Thu Oct 24, 2019 5:33 pm

by stevesbike

Tried a pair and am not getting much mileage out of the rear - almost 100% wear with less than 1,000 km on smooth roads.

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

by BigBoyND

I hope the prototypes that pros are using will be launched soon. The current generation seems to lag compared to other tires in its class, but I like that they're offering bigger sizes.

TobinHatesYou
Posts: 13009
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

stevesbike wrote:
Thu Apr 18, 2024 7:23 pm
Tried a pair and am not getting much mileage out of the rear - almost 100% wear with less than 1,000 km on smooth roads.

Not at all my experience with the 2023 version. 4100km, much of the time at road race speeds, on average quality roads. Still going strong, bet I can get at least 5500km.

B0tt0mline
Posts: 159
Joined: Fri Jun 02, 2023 8:47 pm

by B0tt0mline

How are the Pirellis compared to the Vittoria Corsa Pro TLR in ride feeling?
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KRL
Posts: 6
Joined: Thu Apr 25, 2024 1:27 pm

by KRL

Yesterday Pirelli released the P Zero Race TLR RS. Claimed to be lighter and around 13% faster according to some media reports. Looking forward to seeing it get tested at BRR!

thirdsun
Posts: 422
Joined: Fri Aug 06, 2021 3:20 pm

by thirdsun

KRL wrote:
Wed May 15, 2024 8:37 am
Yesterday Pirelli released the P Zero Race TLR RS. Claimed to be lighter and around 13% faster according to some media reports. Looking forward to seeing it get tested at BRR!
Waiting for a BRR review too but I worry that this might just be a rebranded P Zero Race TLR SL, which was negligibly faster than the non-SL variant but much less puncture resistant. To me the huge selling point of the P Zero range is the balance of good rolling resistance and puncture protection.
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TobinHatesYou
Posts: 13009
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

KRL wrote:
Wed May 15, 2024 8:37 am
Yesterday Pirelli released the P Zero Race TLR RS. Claimed to be lighter and around 13% faster according to some media reports. Looking forward to seeing it get tested at BRR!

16% faster. That would still put it slower than the GP5K S TR, let alone the TT TR, but if it has good grip and decent puncture resistance I might race on it.

by Weenie


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