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NEW GP5000S TR

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

Moderator: robbosmans

Forum rules 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! Post Reply
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online alcatraz Posts: 4064 Joined: Mon Aug 29, 2016 11:19 am
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by alcatraz on Mon Aug 30, 2021 4:03 am

Isn't it unlikely that they managed to get their tubeless gp5000 tire down to 215gr from 300gr in just one iteration? I suspect it's the non tubeless version or there's a major compromise. Top online TobinHatesYou Posts: 15297 Joined: Mon Jul 24, 2017 12:02 pm
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by TobinHatesYou on Mon Aug 30, 2021 4:41 am

alcatraz wrote: ↑Mon Aug 30, 2021 4:03 am Isn't it unlikely that they managed to get their tubeless gp5000 tire down to 215gr from 300gr in just one iteration? I suspect it's the non tubeless version or there's a major compromise.
It's very likely because the GP5K TL was the outlier and several other tubeless tires are in that range...such as the Vittoria Corsa Speed, Schwalbe Pro One TT, Hutchinson Fusion 5 Galactik 11Storm, Veloflex Corsa Race, etc. The GP5000 TL used a solid butyl liner whereas Conti "TR" tires use kind of a meshy liner. Besides, TR means tubeless-ready. Attachments tr-logo-02.png Top online

by Weenie on Mon Aug 30, 2021 4:41 am

Visit starbike.com Online Retailer for HighEnd cycling componentsGreat Prices ✓ Broad Selection ✓ Worldwide Delivery ✓www.starbike.com Top online alcatraz Posts: 4064 Joined: Mon Aug 29, 2016 11:19 am
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by alcatraz on Mon Aug 30, 2021 7:23 am

What if they keep the TL version as is but what we're seeing is the non tubeless version to be upgraded to TR? Top online TobinHatesYou Posts: 15297 Joined: Mon Jul 24, 2017 12:02 pm
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by TobinHatesYou on Mon Aug 30, 2021 8:32 am

alcatraz wrote: ↑Mon Aug 30, 2021 7:23 am What if they keep the TL version as is but what we're seeing is the non tubeless version to be upgraded to TR?
Looking more closely at the listing. I think the 225g value for the 25mm is more likely correct. The 28mm will probably be around 260g. The 215g/235g are copied from the regular clincher specs. Either way I expect an all new tire because the current GP5K TL uses non-standard bead dimensions. Top online User avatar warthog101 Posts: 1659 Joined: Wed Sep 25, 2013 10:05 am
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by warthog101 on Mon Aug 30, 2021 8:34 am

alcatraz wrote:What if they keep the TL version as is
I certainly hope they do keep the TL as is. Perfect for my use. Roll, grip, wear and hold air well. Couldn't give a rat's about a few extra grams. Rather keep the durability. Top online User avatar robbosmans Moderator Posts: 3024 Joined: Sun Aug 26, 2018 12:40 pm Location: Central Belgium Contact: Contact robbosmans Website
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by robbosmans on Mon Aug 30, 2021 8:35 am

Just found all the weights 25 = 225g 28 = 240g 30 = 270g Colnago V4Rs - 6.8kg Enve MOG - 8.0kg BMC Roadmachine - 8kg Top online RDY Posts: 3237 Joined: Thu Jul 30, 2020 10:31 pm
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by RDY on Mon Aug 30, 2021 9:46 am

Dropping that much weight, I suspect these are an out and out race tyre and offer little to no durability or puncture protection. Top online FlatlandClimber Posts: 2537 Joined: Tue Mar 31, 2020 3:37 pm
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by FlatlandClimber on Mon Aug 30, 2021 10:51 am

Jan Frodeno was racing his world record attempt and the Collins Cup yesterday on unbranded Conti 5000, that were set up tubeless. The TR will definitely be a Tubeless tire, and if used in triathlon, it will likely be faster rolling that it is good at. 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 Top online mrlobber Posts: 2258 Joined: Sat Oct 23, 2010 9:36 am Location: Where the permanent autumn is
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by mrlobber on Mon Aug 30, 2021 10:59 am

Sounds like Vittoria Corsa Speed is going to have some competition then. Except, as Tobin mentioned, if you're actually going to be able to get it for the 2022 season. Minimum bike categories required in the stable: Aero bike | GC bike | GC rim bike | Climbing bike | Climbing rim bike | Classics bike | Gravel bike | TT bike | Indoors bike Top online FlatlandClimber Posts: 2537 Joined: Tue Mar 31, 2020 3:37 pm
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by FlatlandClimber on Mon Aug 30, 2021 11:00 am

Also, considering the tyre having the same profile as the normal Continental GP5000, it will likely have the same aerodynamic advantage. With "only" 4.5W less rolling resistance, we would have an equal match for the Vittoria Corsa Speed 2.0. I would actually be happier with using a Conti on bad courses and then the Veloflex on good courses. (https://www.aero-coach.co.uk/aerodynami ... cing-tyres) Last edited by FlatlandClimber on Mon Aug 30, 2021 12:23 pm, edited 1 time in total. 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 Top online mrlobber Posts: 2258 Joined: Sat Oct 23, 2010 9:36 am Location: Where the permanent autumn is
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by mrlobber on Mon Aug 30, 2021 11:07 am

Corsa Speed had less than 1.5W advantage vs Conti GP5000TL, as per bicyclerollingresistance. Ahh, ok, you probably refer to Aerocoach data, where the difference is bigger. Corsa Speeds are surprisingly robust for a flat-out TT tyre. Minimum bike categories required in the stable: Aero bike | GC bike | GC rim bike | Climbing bike | Climbing rim bike | Classics bike | Gravel bike | TT bike | Indoors bike Top online FlatlandClimber Posts: 2537 Joined: Tue Mar 31, 2020 3:37 pm
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by FlatlandClimber on Mon Aug 30, 2021 12:28 pm

mrlobber wrote: ↑Mon Aug 30, 2021 11:07 am Corsa Speed had less than 1.5W advantage vs Conti GP5000TL, as per bicyclerollingresistance. Ahh, ok, you probably refer to Aerocoach data, where the difference is bigger. Corsa Speeds are surprisingly robust for a flat-out TT tyre.
You are correct (I edited that in). Why is the difference on BRR so different? Clincher tires all use 100g butyl tubes in their testing, which are known to be slow. A clincher and a TL tire are usually testing equally fast, when the clincher is equipped with a fast Latex tube. BRR only tests on a metal drum, with AC testing on Rollers, and Track. The metal drum give some indication but fails to tell the whole picture. Even wide tires usually Test fastest at the highest pressure and we know that's not correct. Also, the Crr from BRR is one wheel/ tire only, so the 1.5W difference is at least 3W. I must say just from feeling (not scientific, not accurate, but all I have), the Corsa Speed is significantly faster than the Conti, and the Veloflex is significantly faster than both. 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 Top online User avatar Orlok Posts: 229 Joined: Tue Feb 07, 2017 12:36 pm Location: Almere - Nederland
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by Orlok on Mon Aug 30, 2021 12:54 pm

Artikel ETRTO Dimensie Technologie Kleur/Wang/Hiel TPI BlackChili g PSI 101628 25 - 622 700 X 25C Vectran Breaker | LazerGrip | ACT zwart/zwart skin vouwbaar 3/180 295 109 Once comes a time that you'll have a tailwind :D Pinarello F10 - Ultegra 8050 Di2 - Carbonspeed C38 Tubeless Top online User avatar Orlok Posts: 229 Joined: Tue Feb 07, 2017 12:36 pm Location: Almere - Nederland
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by Orlok on Mon Aug 30, 2021 12:56 pm

GP 5000 TL: Artikel ETRTO Dimensie Technologie Kleur/Wang/Hiel TPI BlackChili weight PSI 101628 25 - 622 700 X 25C Vectran Breaker | LazerGrip | ACT zwart/zwart skin vouwbaar 3/180 295 109 Once comes a time that you'll have a tailwind :D Pinarello F10 - Ultegra 8050 Di2 - Carbonspeed C38 Tubeless Top online

by Weenie on Mon Aug 30, 2021 12:56 pm

Visit starbike.com Online Retailer for HighEnd cycling componentsGreat Prices ✓ Broad Selection ✓ Worldwide Delivery ✓www.starbike.com Top online tritiltheend Posts: 83 Joined: Sat Jun 02, 2012 2:42 am
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by tritiltheend on Mon Aug 30, 2021 1:05 pm

robbosmans wrote: ↑Mon Aug 30, 2021 8:35 am Just found all the weights 25 = 225g 28 = 240g 30 = 270g
If that's accurate, the 25 & 28 are exactly the same weight as the current tubed version, and the 30 is 15 g heavier. Seems hard to believe? Anything about a 32C version? Top Post Reply
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