Vittoria Graphene 2.0
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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!
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- Joined: Mon Jul 24, 2017 12:02 pm
Ultimately Vittoria did claim in a marketing presentation that they were going after fast training tires, including the GP5K S TR. That tire is an outlier though. Nothing comes close to it in terms of Crr + all-around performance (grip, endurance, puncture protection, etc.) The Power Cup ends up cheating by being oversized with a woeful tread cap width. Everything else is 1.5-3W slower.
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Having handled both the Vittoria Corsa Speed 2.0 TLR and Conti GP5000S TR, in terms of durability and tread thickness they are like night and day.
The fact that Conti could get the GP5000S TR to a similar level of RR as the Corsa Speed is quite frankly amazing.
We now need Vittoria to step up with a new Corsa G+.
Giant Propel Advanced SL Red Etap 11s Easton EC90 wheels CeramicSpeed BB Zipp SL70 bars 6.5kg
Vitus ZX1 CRS Campy Chorus 12s Bora WTO 45 disk brake wheels Zipp SL70 bars 7.5kg
Vitus ZX1 CRS Campy Chorus 12s Bora WTO 45 disk brake wheels Zipp SL70 bars 7.5kg
SL8 build with Craft CS5060 Wheels in progress
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- Joined: Mon Jul 24, 2017 12:02 pm
Two punctures to flat on Corsa Speeds in the last two weeks. DynaPlug fixed the latest one, but the previous puncture was from a pretty large wooden shard that broke off inside the tire and created a crescent shaped 6mm cut. Two regular plugs got the leak slow enough to limp home, but it was bubbling overnight.
I guess I was just lucky with my previous stint on these tires.
I guess I was just lucky with my previous stint on these tires.
From a Motorsports POV on bike tires.
It's likely from the tread compound!
They seem to be using a somewhat low grip / "harder" / ECO type compound like you might find on a Prius.
Look at the mediocre wet grip results for example.
Not sure the story is quite that simple with the Corsa G+. According to Vittoria this tyre has a harder (read fast) compound in the middle section and softer (slower) rubber towards the edges of the tread. I can see that putting the tyre on wide rims may increase RR a bit, as the softer edges could be in contact with the road.
I love my Corsa G+ tubs, they have truly prodigious cornering grip and a feeling of good RR. Not quite as good as a GP5000S though.
Let's see what the next Corsa G+ does, I still want it to feel like a race tire.
Giant Propel Advanced SL Red Etap 11s Easton EC90 wheels CeramicSpeed BB Zipp SL70 bars 6.5kg
Vitus ZX1 CRS Campy Chorus 12s Bora WTO 45 disk brake wheels Zipp SL70 bars 7.5kg
Vitus ZX1 CRS Campy Chorus 12s Bora WTO 45 disk brake wheels Zipp SL70 bars 7.5kg
SL8 build with Craft CS5060 Wheels in progress
The "old" Gp 5000 TL has a marginally better RR while also having better puncture protection. The S TR is a signficant downgrade especially when it comes to pricing.
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All the testing would suggest that the 5000 S TR doesn't have enough puncture protection to be a training tyre unlike the old 5000 TR.
Exactly.
Currently on holiday in italy and managed to find a shop with the old 5000 TL in 25c; next season is saved.
Currently on holiday in italy and managed to find a shop with the old 5000 TL in 25c; next season is saved.
i go off of measured grip via accelerometer.Nickldn wrote: ↑Sat Sep 10, 2022 8:45 amNot sure the story is quite that simple with the Corsa G+. According to Vittoria this tyre has a harder (read fast) compound in the middle section and softer (slower) rubber towards the edges of the tread. I can see that putting the tyre on wide rims may increase RR a bit, as the softer edges could be in contact with the road.
I love my Corsa G+ tubs, they have truly prodigious cornering grip and a feeling of good RR. Not quite as good as a GP5000S though.
Let's see what the next Corsa G+ does, I still want it to feel like a race tire.
For rolling resistance, my braking R&D etc, the center of the tread is the dominant zone.
Seems like Conti had to 're-position' it's flagship bicycle race tyre by launching the GP5000S TR and discontinuing the GP5000TL. Else they'd lose money and prestige.
As we all know (ahem have been told) the GP5000S TR is a light tubless ready race tyre, sold at a significant premium to many competitors. Oh look there's also a new 'halo' product for TT.
On the other hand the GP5000TL was a heavy and robust training tyre. Who's gonna pay a premium for one of those? Oh it lasts for ages? How's that good for sales?
So yes Conti had no choice, they had to kill the GP5000TL. It didn't make marketing sense.
Giant Propel Advanced SL Red Etap 11s Easton EC90 wheels CeramicSpeed BB Zipp SL70 bars 6.5kg
Vitus ZX1 CRS Campy Chorus 12s Bora WTO 45 disk brake wheels Zipp SL70 bars 7.5kg
Vitus ZX1 CRS Campy Chorus 12s Bora WTO 45 disk brake wheels Zipp SL70 bars 7.5kg
SL8 build with Craft CS5060 Wheels in progress
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- Posts: 12455
- Joined: Mon Jul 24, 2017 12:02 pm
I have not noticed significant durability issues with the S TR. I got 3700mi from a 25mm rear tire. The sidewalls have actually held up better than with my GP5K TLs. Only one premium tire I’ve tried has gotten more mileage, and that was 4100mi from a 30mm Corsa Control TLR. Not a fair comparison because the tread wear is spread out over a much larger tire patch.
AFAIK the reason why the GP5K TL was discontinued was because the dimensions weren’t ETRTO compliant. Neither the bead diameter/circumference nor the shape conformed to the standard.
AFAIK the reason why the GP5K TL was discontinued was because the dimensions weren’t ETRTO compliant. Neither the bead diameter/circumference nor the shape conformed to the standard.
Hard rubber helps durability AND rolling resistance. Other than all out stoppie-prone braking, cycling is a low g-force activity. Arguably Vittoria should cut their dry and wet grip to benefit rolling resistance and durability?TobinHatesYou wrote: ↑Sat Sep 10, 2022 9:02 pmI have not noticed significant durability issues with the S TR. I got 3700mi from a 25mm rear tire.
Yeah, main reason Conti stopped producing TL is the incompatibility of hookless. Though they clearly said no hookless and put the label on the package, there are still stupid people trying to use it on hookless wheels.TobinHatesYou wrote: ↑Sat Sep 10, 2022 9:02 pmI have not noticed significant durability issues with the S TR. I got 3700mi from a 25mm rear tire. The sidewalls have actually held up better than with my GP5K TLs. Only one premium tire I’ve tried has gotten more mileage, and that was 4100mi from a 30mm Corsa Control TLR. Not a fair comparison because the tread wear is spread out over a much larger tire patch.
AFAIK the reason why the GP5K TL was discontinued was because the dimensions weren’t ETRTO compliant. Neither the bead diameter/circumference nor the shape conformed to the standard.
Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓ Broad Selection ✓ Worldwide Delivery ✓
www.starbike.com