NEW GP5000S TR

Wheels, Tires, Tubes, Tubeless, Tubs, Spokes, Hookless, Hubs, and more!

Moderator: robbosmans

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The spirit of this board is to compile and organize wheels and tires related discussions.

If a new wheel tech is released, (say for example, TPU tubes, a brand new tire, or a new rim standard), feel free to start the discussion in the popular "Road". Your topic will eventually be moved here!
BespokeTrailMix
Posts: 12
Joined: Fri Jun 25, 2021 8:43 pm
Location: Texas, USA

by BespokeTrailMix

I'm in the process of collecting parts to put together an all-road build and want to run the GP5K S TR in 30mm on my 25i/32e width rims. The 30mm version of this tire seems to be out of stock almost everywhere, so they're becoming more difficult to come by, but I was able to snag one on eBay that arrived a few days ago. I was a little surprised to see it come in at 313g. That's 10+ g heavier than others have posted, and 19g heavier than Bicycle Rolling Resistance measured. Hoping the next one I find comes in a little lighter!

Also, it took me forever to find the tire size listed on the casing. I assume the tiny black lettering is the status quo on this tire? Forgive me for being a bit paranoid any time I purchase something from eBay.
IMG_4107.jpg

by Weenie


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BBres
Posts: 292
Joined: Tue Dec 22, 2020 3:20 pm

by BBres

Any experience here after switching from 28 mm to 30 mm GP 5000 S TR? Pros and cons?

My wheels: Roval Rapide CLX II. Thinking of gettin 30s when my 28s wear out. Is that a good idea for racing or should I stay with 28?

req110
Posts: 901
Joined: Thu Nov 22, 2018 10:23 am

by req110

i switched from 28mm to 30mm gp 5000 S TR, both transparent wall.
All on roval rapide clx II.

28mm were measuring 29.5mm
30mm measure 30.6mm after one and half days and 50km.

I am fine with them.
SW SL8 RTP 56cm @ SH 9270 / Roval Rapide CLX II / CS OSPW / CEMA BB
S Epic 8 L @ XX T-Type / Berg Ratheberg 30 / Quarq / Fox Transfer SL 100mm / 3p

BBres
Posts: 292
Joined: Tue Dec 22, 2020 3:20 pm

by BBres

what are your impressions? Which set do you find better?

Mocs123
Posts: 881
Joined: Tue May 11, 2021 9:19 pm

by Mocs123

What are peoples experiance with the GP 5000 TT TR? How many miles are you getting on them? How prone are they to punctures.?
2015 Wilier Zero.7 Rim - 6.37kg
2020 Trek Emonda SLR-7 Disc - 6.86kg
2023 Specialized SL7 - 7.18kg

req110
Posts: 901
Joined: Thu Nov 22, 2018 10:23 am

by req110

BBres wrote:
Sat Feb 03, 2024 10:01 pm
what are your impressions? Which set do you find better?
I am fine so far. Bit of comfort. Handling ok.
If i had to decide between 28 and 30, i would purchase 30 again.
SW SL8 RTP 56cm @ SH 9270 / Roval Rapide CLX II / CS OSPW / CEMA BB
S Epic 8 L @ XX T-Type / Berg Ratheberg 30 / Quarq / Fox Transfer SL 100mm / 3p

BigBoyND
Posts: 1545
Joined: Mon May 31, 2021 1:51 am
Location: Berlin, DE

by BigBoyND

Has it been figured out why the transparent tire tested so much slower on BRR? It tested later. So did the compound change to a slower one, or is the casing different? Pretty much every reference to BRR and how fast the S TR is, conveniently points to the faster of two tests.
Last edited by BigBoyND on Fri Feb 09, 2024 5:43 am, edited 1 time in total.

windscreen
Posts: 33
Joined: Sun Nov 07, 2021 1:35 am

by windscreen

Mocs123 wrote:
Sat Feb 03, 2024 10:30 pm
What are peoples experiance with the GP 5000 TT TR? How many miles are you getting on them? How prone are they to punctures.?
Over 2150 k on my 28 mm TT-TR so far, and no punctures or notable wear. Where I ride, out in the country, punctures have been pretty rare, however (knock on wood!). I put over 5700 k on a set of S-TR with no punctures, either.

-Steve

Mocs123
Posts: 881
Joined: Tue May 11, 2021 9:19 pm

by Mocs123

windscreen wrote:
Thu Feb 08, 2024 8:35 pm
Mocs123 wrote:
Sat Feb 03, 2024 10:30 pm
What are peoples experiance with the GP 5000 TT TR? How many miles are you getting on them? How prone are they to punctures.?
Over 2150 k on my 28 mm TT-TR so far, and no punctures or notable wear. Where I ride, out in the country, punctures have been pretty rare, however (knock on wood!). I put over 5700 k on a set of S-TR with no punctures, either.

-Steve
Thanks for sharing. I'm considering trying them when my current tires wear out - or I may go with the regular GP5K with latex tubes. Of course I need all the speed help I can get!
2015 Wilier Zero.7 Rim - 6.37kg
2020 Trek Emonda SLR-7 Disc - 6.86kg
2023 Specialized SL7 - 7.18kg

Mocs123
Posts: 881
Joined: Tue May 11, 2021 9:19 pm

by Mocs123

BigBoyND wrote:
Tue Feb 06, 2024 6:10 am
Has it been figured out why the transparent tire tested so much slower on BRR? It tested later. So did the compound change to a slower one, or is the casing different? Pretty much every reference to BRR and how fast the S TR is, conveniently points to the faster of two tests.
I found this odd too as I'm pretty sure the "tan wall" GP5KS-TR's have the tan wall painted or printed on and the rest of the tire is the same. That's not the case with the tube type GP5K's where the transparent tire has a different sidewall rubber compound.
2015 Wilier Zero.7 Rim - 6.37kg
2020 Trek Emonda SLR-7 Disc - 6.86kg
2023 Specialized SL7 - 7.18kg

gurk700
Posts: 1041
Joined: Fri Jan 20, 2017 7:40 pm

by gurk700

For how much % difference in weight I personally see between exact same model / size of tire, I suspect producing tires aren't 100% consistent.
For that reason, I wouldn't be shocked if BRR tests happen to be different for the tan vs black version. I feel like that difference might even be observed between same size, same sidewall color tire as well.

tonytourist
Posts: 1427
Joined: Sat Oct 10, 2009 7:13 am
Location: 90039

by tonytourist

I had a defective Continental GP 5000 S TR 32 that caused my rim to drop tension all over the place causing an insane wobble. Swapped tire, everything is perfect. I'm an idiot and rode it like that for a ride :unbelievable: 8)
https://imgur.com/QTUJ8Ks

Mocs123
Posts: 881
Joined: Tue May 11, 2021 9:19 pm

by Mocs123

gurk700 wrote:
Fri Feb 09, 2024 10:41 pm
For how much % difference in weight I personally see between exact same model / size of tire, I suspect producing tires aren't 100% consistent.
For that reason, I wouldn't be shocked if BRR tests happen to be different for the tan vs black version. I feel like that difference might even be observed between same size, same sidewall color tire as well.
The tanwall was 3g lighter in the BRR test (255g vs 252g) and 1mm narrower (25mm measured vs. 26mm measured). Certainly 3g is normal manufacturing variance - I'm not sure about the 1mm difference in width.
2015 Wilier Zero.7 Rim - 6.37kg
2020 Trek Emonda SLR-7 Disc - 6.86kg
2023 Specialized SL7 - 7.18kg

BigBoyND
Posts: 1545
Joined: Mon May 31, 2021 1:51 am
Location: Berlin, DE

by BigBoyND

Mocs123 wrote:
Sat Feb 10, 2024 4:15 am
gurk700 wrote:
Fri Feb 09, 2024 10:41 pm
For how much % difference in weight I personally see between exact same model / size of tire, I suspect producing tires aren't 100% consistent.
For that reason, I wouldn't be shocked if BRR tests happen to be different for the tan vs black version. I feel like that difference might even be observed between same size, same sidewall color tire as well.
The tanwall was 3g lighter in the BRR test (255g vs 252g) and 1mm narrower (25mm measured vs. 26mm measured). Certainly 3g is normal manufacturing variance - I'm not sure about the 1mm difference in width.
If you're rounding to the nearest integer, then "25" vs "26" can be 0.1 apart or 1.9 apart

The sizes on BRR are 24.9mm and 25.5mm. So just 0.6mm, which is within variance. I measure my tires in multiple places and different spots on the same tire can vary by that amount.

by Weenie


Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓    Broad Selection ✓    Worldwide Delivery ✓

www.starbike.com



gurk700
Posts: 1041
Joined: Fri Jan 20, 2017 7:40 pm

by gurk700

Mocs123 wrote:
Sat Feb 10, 2024 4:15 am
gurk700 wrote:
Fri Feb 09, 2024 10:41 pm
For how much % difference in weight I personally see between exact same model / size of tire, I suspect producing tires aren't 100% consistent.
For that reason, I wouldn't be shocked if BRR tests happen to be different for the tan vs black version. I feel like that difference might even be observed between same size, same sidewall color tire as well.
The tanwall was 3g lighter in the BRR test (255g vs 252g) and 1mm narrower (25mm measured vs. 26mm measured). Certainly 3g is normal manufacturing variance - I'm not sure about the 1mm difference in width.
There's more to rolling resistance than width and weight. What I meant was if they are as inconsistent producing tires that are so apart in weight i'm sure they do other stuff that is inconsistent enough to make them 1-2 watt better or worse in a BRR test.

Let's not forget whatever % inaccuracy that may come from the BRR test too. it's not like they are 100% accurate.

So it would make sense that it all adds up to 1 or 2 watt difference.

I'm surprised when people take all the aero, chain efficiency, rolling resistance, etc tests as 100% accurate. They are not. They can't be. It's just a good starting point. Chances are top 3-5 of whatever they are testing is indeed the top 5 but the order of them might be not so clear cut.

All that to say, I'm pretty sure color of a tire doesn't change rolling resistance and if BRR tested enough all black tires in the same size they would end up a watt or 2 different as well like the tan one.

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