NEW GP5000S TR
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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!
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!
That's quite a bit of size difference (2mm less tall, 1mm less wide). That would explain the RR didn't drop as expected. Having one less layer of casing and no butyl layer should result in lower RR in theory when all else are equal. When my new TR 32mm arrive I'll be able to do a side-by-side physical comparison against a new TL 32mm. I hope the reduction in size doesn't affect all sizes. I like big tires at lower pressures.
Would someone be kind enough to post the watts at 60psi against the TL? If you're not comfortable you can also post the relative difference and state which one is higher. Thanks.
Would someone be kind enough to post the watts at 60psi against the TL? If you're not comfortable you can also post the relative difference and state which one is higher. Thanks.
bummer.. I'll stick with Vittoria and Schwalbe
2024 BMC TeamMachine R Building
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2018 BMC TImeMachine Road
2002 Moots Compact-SL- getting aero look makeover
2019 Parlee Z0XD - "classified"
2023 Pivot E-Vault - completed project, full Xplr package
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Is there any proof to the "new version" being slower and grippier? According to Veloflex, it is all the same tire and I have both, they weigh exactly the same and feel absolutely equally thin.Hexsense wrote: ↑Fri Oct 15, 2021 4:21 pmWhy? Because they tested the different version of Veloflex Record (BRR got the updated, slower but gripper version) thus get different result?FlatlandClimber wrote: ↑Fri Oct 15, 2021 2:41 pmReally looking forward to the AC test. Since the Veloflex Record Test, I don't trust BRR so much anymore...
I think it's logical to test the most updated version of the tire at the time of the test. Because that's what user will get going forward, rather than find an old, legendary-fast version to match AC's test.
Cervelo P5 Disc (2021) 9.1kg
Factor Ostro Gravel (2023) 8.0kg
S-Works SL8 (2023) 6.3kg
*weights are race ready, size 58/L.
Sold: Venge, S5 Disc, Roubaix Team, Open WI.DE, Émonda, Shiv TT, Crux, Aethos, SL7
Factor Ostro Gravel (2023) 8.0kg
S-Works SL8 (2023) 6.3kg
*weights are race ready, size 58/L.
Sold: Venge, S5 Disc, Roubaix Team, Open WI.DE, Émonda, Shiv TT, Crux, Aethos, SL7
Hmm, right. I think I mistake it.
Otherwise, if it's all with tube the tubeless tire won't be faster than with tube in those tests.
I don't have a third party proof.FlatlandClimber wrote: ↑Fri Oct 15, 2021 6:04 pmIs there any proof to the "new version" being slower and grippier? According to Veloflex, it is all the same tire and I have both, they weigh exactly the same and feel absolutely equally thin.
Just from BRR note on Silica compound version.
https://www.bicyclerollingresistance.co ... lex-record
It wouldn't weight more or less or get thinner or thicker if they just alter the rubber compound slightly.
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The test by Aerocoach was in October 2020:Hexsense wrote: ↑Fri Oct 15, 2021 7:28 pmI don't have a third party proof.FlatlandClimber wrote: ↑Fri Oct 15, 2021 6:04 pmIs there any proof to the "new version" being slower and grippier? According to Veloflex, it is all the same tire and I have both, they weigh exactly the same and feel absolutely equally thin.
Just from BRR note on Silica compound version.
https://www.bicyclerollingresistance.co ... lex-record
It wouldn't weight more or less or get thinner or thicker if they just alter the rubber compound slightly.
The Veloflex Record has been revised many times, and they have tested the same tire.
Cervelo P5 Disc (2021) 9.1kg
Factor Ostro Gravel (2023) 8.0kg
S-Works SL8 (2023) 6.3kg
*weights are race ready, size 58/L.
Sold: Venge, S5 Disc, Roubaix Team, Open WI.DE, Émonda, Shiv TT, Crux, Aethos, SL7
Factor Ostro Gravel (2023) 8.0kg
S-Works SL8 (2023) 6.3kg
*weights are race ready, size 58/L.
Sold: Venge, S5 Disc, Roubaix Team, Open WI.DE, Émonda, Shiv TT, Crux, Aethos, SL7
Thanks for posting this - I, for one, will give it a go when the need arises.tanhalt wrote: ↑Thu Oct 14, 2021 4:04 pmI've had great success with just using small lengths of cotton butcher's cord inserted with the Genuine Innovations "fork" tool. The key to having them stay put is performing a ~quarter-turn twist of the tool prior to removal. This forms a loop inside the tire that makes it more difficult to work it's way out and even eventually becomes a "mushroom head" after sealant coagulates on it. Never had one of these come out in hundreds to thousands of miles of riding on them. No need to "ride at low pressures for several days". They've basically been permanent repairs on tires for me. Much less expensive than Dyna Plug and very easy to use since the cotton cord can be pre-loaded in the tool and ready to go. BTW, the same "twist" technique should be used with the elastomer coated "strips of bacon" as well to prevent pull-out. The full write-up is here: https://bikeblather.blogspot.com/2020/0 ... gging.html
I'm sorry to have to say this, but this is not true. Any tire stiff enough to reduce the deformation of the tube in a given test condition is ALSO going to be highly "lossy" in it's own right. There's no "free lunch"...and what you state is a myth based upon a misunderstanding of the mechanisms/physics at hand and "sketchy" data.Hexsense wrote: ↑Fri Oct 15, 2021 4:28 pmRide better is receipe for worse drumroll test on BRR.
BRR test everything with butyl tube inside. Butyl have quite some loss to compress and rebound. So, any stiff tire that reduce the deformation of the inner tube is going to test better. I like that AeroCoach test tubeless tire tubeless...
Yup, way too narrow for the AR56, looked ridiculous when I mounted it. Go with the 28s, better ride anyways without too much of an aero /weight penalty.morganb wrote:It looks like the tire got smaller once again. I wonder if I should get 28mm for AR56 since the 25mm is pretty much an old 23mm now, which would be borderline at the internal width.
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Yeah, I think this is getting lost here... If you normalize pressure to total tire volume, I'm willing to bet the new 5000S does actually roll slightly faster. Of course, in my experience the actual ranking of tire Crr can change depending on the size; e.g. the 5000s 28's may be faster be a reasonable margin. Or they may not be..tjvirden wrote: ↑Fri Oct 15, 2021 2:37 pmIt's important to note, as Jarno does, that the sizing is different - the new tire is effectively smaller and that means a direct RR comparison is not so easy. What we don't know is exactly how Conti test their tires - how do they get to that 20% figure? I wish they'd make it public...........CampagYOLO wrote: ↑Fri Oct 15, 2021 10:19 amResults are in from BRR, according to them basically the same performance as the old TL tyre and slightly worse puncture protection.
Jarno found it much easier to fit which is a big win though.
https://www.bicyclerollingresistance.co ... -5000-s-tr
I think real-world flat resistance and perceived grip will be interesting to hear about once plenty of users are out there.
Bottom like though, Crr seems to be within the margin of the test (no error bars...) and certainly within the variance of the samples. So, you're gaining hookless compatibility, easier mounting and lighter weight in exchange for worse puncture protection on the tread--and likely shorter life.
The other thing worth noting is aerodynamics, if you're at the point end and looking for "the fastest tire". Honestly, this was has me wondering a bit. It runs a bit more narrow, which may be good--but I suspect that the couple of mm off of the middle section is going to impact aerodynamics a bit. The parabolic shape of the old one likely had some unintended consequences of making the tire and aero standout (like the old 4000S). It may end up being slower overall. Probably have to wait for some data on it.
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tjvirden wrote: ↑Fri Oct 15, 2021 8:58 pmThanks for posting this - I, for one, will give it a go when the need arises.tanhalt wrote: ↑Thu Oct 14, 2021 4:04 pmI've had great success with just using small lengths of cotton butcher's cord inserted with the Genuine Innovations "fork" tool. The key to having them stay put is performing a ~quarter-turn twist of the tool prior to removal. This forms a loop inside the tire that makes it more difficult to work it's way out and even eventually becomes a "mushroom head" after sealant coagulates on it. Never had one of these come out in hundreds to thousands of miles of riding on them. No need to "ride at low pressures for several days". They've basically been permanent repairs on tires for me. Much less expensive than Dyna Plug and very easy to use since the cotton cord can be pre-loaded in the tool and ready to go. BTW, the same "twist" technique should be used with the elastomer coated "strips of bacon" as well to prevent pull-out. The full write-up is here: https://bikeblather.blogspot.com/2020/0 ... gging.html