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View Full Version : Vittoria Corsa G+ 2.0 sidewall failure

fa63
10-05-2019, 10:39 AM
This happened on this morning's ride. I don't recall running over any debris of any sorts, so not sure why or how. It is a very clean tear in that one section, right where the tire meets the rim. The wheels are Reynolds 41 AR (disc brake). The tire has about 200 miles on it, almost new.

These are the type of tires that Enve had recommended against using on their carbon clinchers... Anyone else have issues with their Vittoria Corsas and carbon clinchers? Just thinking if I should replace it with something else.

https://uploads.tapatalk-cdn.com/20191005/1c0e58f1ba218f9197413324fc4a0668.jpg
Jmj2323
10-05-2019, 11:10 AM
It’s happened to me twice with those tires, but both times after flatting and riding a few seconds on to get to the shoulder. I assumed that was the cause. I have these on a few bikes. No complaints.
fa63
10-05-2019, 03:22 PM
That is the weird part, the inner tube is fine. Just that one little section of the tire ripped but I didn't even notice it until I got home.
Hindmost
10-05-2019, 03:39 PM
Yikes. How would you characterize the inside edge of the carbon rim? (Or a photo?)
jpritchet74
10-05-2019, 04:30 PM
Yikes. How would you characterize the inside edge of the carbon rim? (Or a photo?)

Exactly what I was going to ask...
fa63
10-05-2019, 04:40 PM
I pulled the tire off, and didn't notice any sharp edges on the rim. At least not sharp to the touch.

That said, the tire seemed to have an indentation around its perimeter where it comes into contact with the hooked portion of the rim. The year occured precisely along this indentation.

I pulled the front Corsa G+ off too and reinstalled the Vittoria Rubinos that came stock on the bike. The indentation was not as pronounced on the front tire, but I didn't want to take any chances.

My setup was 25c front / 28c rear tire, 90 psi front / 95 psi rear.

https://uploads.tapatalk-cdn.com/20191005/b6a67001444d37e2b0aed8d201786cdd.jpg
AngryScientist
10-05-2019, 07:23 PM
My setup was 25c front / 28c rear tire, 90 psi front / 95 psi rear.


moved it for you.

man, 95# is a lot of pressure for a 28.
Vonruden
10-05-2019, 08:36 PM
I’ve had 2 slice on the tread very early, not happy with em. Very grippy and plush tires, however not durable from my experience.
fa63
10-05-2019, 09:03 PM
moved it for you.

man, 95# is a lot of pressure for a 28.
Thanks!

225 lbs rider / 25 lbs bike (ready to ride, with saddle bag, two full bottles, etc). Plus I have found these tires to feel better at slightly higher pressure.
rst72
10-05-2019, 09:04 PM
I went through 2 tires with exact same issue in one year...both on the rear. Unfortunately, I will not use the Corsa G+ again.

Rode 28 clinchers on Boras with 90psi.
Big Dan
10-05-2019, 10:07 PM
I do 80 pounds on my 28's and think maybe it's too much.


:eek:
R3awak3n
10-06-2019, 06:44 AM
Thanks!

225 lbs rider / 25 lbs bike (ready to ride, with saddle bag, two full bottles, etc). Plus I have found these tires to feel better at slightly higher pressure.

I think 90 is perfectly fine but you could probably drop some if you wanted. I run less than you at more weight but thats preference.

On the tires, thats a bummer and quality control issue it seems. I had this happen on veloflex. Corsas have been better but have not tried the 2.0s. The v1s have been pretty great to me. Id contact vittoria. They might not do anything but they might want to know and send you a new tire
bikser
10-06-2019, 09:13 AM
Velonews had an article somewhat related.

https://www.velonews.com/2019/09/bikes-and-tech/technical-faq-a-tubeless-tire-blowout-in-the-pyrenees_500757
CAAD
10-06-2019, 09:15 AM
Same thing happened to my buddy yesterday morning. Zipp 404. Was around a 3 inch slit though. Was able to nurse it home.
AngryScientist
10-06-2019, 09:45 AM
this is upsetting to hear as these are my favorite tires right now. all the ones i'm running are prior to graphene 2.0 though. hopefully they will rectify this issue.
happycampyer
10-06-2019, 10:15 AM
Enve took a lot of heat when they came out with their warning a while back. It does seem as if these incidents vindicate them somewhat. I know a lot of people who have ridden these combinations (including with Enves) for quite some time, so it’s hard to figure out what the root of the problem really is. That is, it’s hard to tell if there is some sort of general incompatibility between the super-supple handmade clinchers and carbon clincher rims, or if the failures are due to QC issues (with the tires and/or rims), etc.

For super-supple handmade tires, i’ll stick with tubulars.
fa63
10-06-2019, 10:29 AM
it’s hard to tell if there is some sort of general incompatibility between the super-supple handmade clinchers and carbon clincher rims, or if the failures are due to QC issues (with the tires and/or rims), etc.


I am starting to think it is a little bit of both; any minor issues in QC are more likely to be exacerbated using the combination of cotton casing and carbon clincher rims.

Prior to this, I had a set of Corsa G+ tires (not 2.0, the original) mounted on Campus Zondas for 2,500 miles without a single issue (not even a flat). Those were also 28c, and I was running the same pressures (90 psi front/95 psi rear) in them.

Also for what it is worth, on the sidewall of the Corsa G+ 2.0 28c tire, it says "70-105 psi". So 95 psi is not outside their suggested limit (which I am sure also has a built in factor of safety).
bathsalts
10-06-2019, 10:43 AM
Never had an issue with Rubinos but the Corsas are a little too fragile for regular road riding IMO. Take the tire back to the LBS you bought them at and get it warrantied.
jpritchet74
10-06-2019, 11:03 AM
moved it for you.

man, 95# is a lot of pressure for a 28.

I run the version prior to the Vitttoria Corsa 2.0 tires on my FSE clincher rims (they measure at 27mm wide inflated) and I run 60 psi front and rear. I am 160#.

I used to run my pressure high too (we didn't know better) - after listening to a few podcasts with Josh Portner (of Silca) I dropped the pressure and have never been happier.
CAAD
10-06-2019, 12:59 PM
He is a bigger dude at over 200lbs and over 6ft. Lucky it didn't just blow out.

https://1.bp.blogspot.com/-mTdOyYGCR64/XZorHXpYe_I/AAAAAAAA9Cc/3ATZC7YsG94lZtC8MbhYEzVWFEDJAOzQQCLcBGAsYHQ/s640/jtire.jpg
Big Dan
10-06-2019, 01:11 PM
Anybody had this happen with a non Vittoria tire?
NHAero
10-06-2019, 01:15 PM
Has anyone seen this issue on high quality aluminum clincher rims, like a HED Belgium?
fa63
10-06-2019, 01:41 PM
Anybody had this happen with a non Vittoria tire?If I remember correctly, Enve had specifically recommended against using both Vittoria and Challenge tires with cotton casing.
R3awak3n
10-06-2019, 02:00 PM
Anybody had this happen with a non Vittoria tire?

I had something similar happening to a veloflex or 2.
Hindmost
10-06-2019, 02:55 PM
Has anyone seen this issue on high quality aluminum clincher rims, like a HED Belgium?

I'm wondering about this also. My sense is traditional aluminum rims have had a nice radiused rim edge. (I'm not familiar with tubeless and hook beads etc.)
AngryScientist
10-06-2019, 03:14 PM
Anybody had this happen with a non Vittoria tire?

i've had this happen to at least two continental tires.
seahuston
10-06-2019, 03:23 PM
As an added data point. Had the same failure on my Corsa G+. Just found my bike with the sidewall failure like this, right were the sidewall meets the bead. Never run more than 100 PSI. Probably had the tires for 3 months. Vittoria warrantied with minimal hassle.
fa63
10-06-2019, 03:27 PM
As an added data point. Had the same failure on my Corsa G+. Just found my bike with the sidewall failure like this, right were the sidewall meets the bead. Never run more than 100 PSI. Probably had the tires for 3 months. Vittoria warrantied with minimal hassle.Were you using carbon or aluminum rims?
Big Dan
10-06-2019, 03:32 PM
Never happened to me with Continental, Panaracers or Schwable tires.
All aluminum rims:
Hed Belgium
Zondas
Mavic K's
AngryScientist
10-06-2019, 03:48 PM
actually, out of all the tires i've used over the years, i've had the most issues with sidewalls in particular with contintental tires. always been a happy vittoria user, but this news is troubling.

http://1.bp.blogspot.com/-rsQFaHb5F4s/VBI97860OwI/AAAAAAAABxQ/Zh4LmJ9_Gb8/s1200/P1080309.JPG
NHAero
10-06-2019, 04:47 PM
I've also experienced Conti tires as having sidewall issues - the sidewalls “wearing” before the tread was shot - but never a separation at the edge of the rim as these photos show, and never anything remotely catastrophic. I've never had carbon rimmed wheels.

QUOTE=AngryScientist;2603357]actually, out of all the tires i've used over the years, i've had the most issues with sidewalls in particular with contintental tires. always been a happy vittoria user, but this news is troubling.

http://1.bp.blogspot.com/-rsQFaHb5F4s/VBI97860OwI/AAAAAAAABxQ/Zh4LmJ9_Gb8/s1200/P1080309.JPG[/QUOTE]