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Conti GP5000 tire life-span: how many miles did you get?

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Conti GP5000 tire life-span: how many miles did you get?

Old 09-29-21, 07:41 AM
  #26  
robbyville
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Originally Posted by noisebeam View Post
Poor image, but it shows the split

my first set of 5000tls (early production) would throw cords regularly, never split from the casing though. I showed the owner of my LBS (small shop big community partner), and he swapped them out for me. He later told me that Conti replaced them for him on his next order.

Im on my third set I think. They do last longer than I usually get. About 2500 miles before casing was getting beyond thin. I ride the TLs, dont think Ive ever gotten a flat that didnt seal on any of them. Nasty suckers to put on my wheels as compared to all the other TLs Ive had but great tires IMHO. So tight but easiest to seat though lol
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Old 09-29-21, 12:04 PM
  #27  
DangerousDanR
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I have had the same issue with the bead separating from the tire on two different GP5000 tires. Both were 700CX25 TL and both were mounted on the rear of my Lynskey, both on an alloy rim, but they were not on the same rim. Both of the tires were worn to a point where the wear indicator dimples were barely visible. I have had zero issues with the 700CX32 on the tandem. Because I buy several tires at a time and keep them in my personal inventory, these could be from an early production batch. Until I hear from Conti I will not know.

Both were running tubeless, both with Orange Seal Sub-zero sealant, and in both cases the tire stayed on the rim in spite of the sudden deflation event. The first one I was going very slow. The second one, not so slow, but because the tire did not come off the bead shoulder on the rim, I was able to maintain control and come to a safe stop.

After the last one I inspected the rim and found no rough spots that should have damaged the tire. I also inspected the brake pad alignment and I did not see any alignment issues which would have made the pads rub on the sidewall of the tire. Also, inspecting the tire I see no evidence that the brake pad rubbed on the tire.

I am very rigorous in checking pressure, so I know that the tire was inflated to 100 PSI when I started my ride. I contacted (no pun intended) Continental 3 days ago but I have not heard back from them. I also like the GP5000 tires, and at the very least I will use up the 3 700C X 25s that I have on the shelf, but I will be replacing them when the wear dimples are still fairly visible instead of waiting until they disappear.


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Old 09-29-21, 02:18 PM
  #28  
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The split in my case is 'behind' the rim, not exposed to brake pad, which is why I didn't see any bulging when inflated like one normally would with a small casing cut. I did check pads and they are aligned, but if out they would not rub in this area. Was a front tire at ~90psi. I checked the inside edges of the rim again, all like new with no edges or scuffing. Never used a tool near this tire, all hand installed.

This is a better image:


Inside:
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Old 10-13-21, 03:21 PM
  #29  
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Preorders available: Continental Grand Prix 5000 S TR Road Tire at BikeTiresDirect

$100 a tire. Ouch. Good thing winter is coming in my part of the world so I won't need to be ordering new tires for ~6 months and can hopefully wait for a sale price.
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Old 10-13-21, 03:59 PM
  #30  
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I replaced my rear to a 28c clincher at beginning of June and it is at 1750 miles. I have small cuts from glass/rock but in good condition.
The front has a GP4 25c that should be on its 2500 miles or so. I didn't buy a 28c because the prices are too high
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Old 02-06-22, 08:28 PM
  #31  
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would you guys replace this tire? GP5000 tubeless 32mm. ridden 50psi typically. approx 2,200 miles on it, all paved. 185lb rider. VERY flat averse - would rather spend the $$$ sooner than get a flat, but have no idea how close these are to any kind of spontaneous failure. the rear is quite "flattened" or squared off in profile, and you can just barely see the wear dots still.



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Old 02-06-22, 09:18 PM
  #32  
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Originally Posted by mschwett View Post
would you guys replace this tire? GP5000 tubeless 32mm. ridden 50psi typically. approx 2,200 miles on it, all paved. 185lb rider. VERY flat averse - would rather spend the $$$ sooner than get a flat, but have no idea how close these are to any kind of spontaneous failure. the rear is quite "flattened" or squared off in profile, and you can just barely see the wear dots still.



I don't think you're in severe danger of a flat owing to the level of wear, but when a tire gets that squared off, I'd retire it.
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Old 02-07-22, 05:59 AM
  #33  
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That tire looks nearing retirement but not quite there yet. When the wear marks are invisible, it's time to bin it imo.
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Old 02-07-22, 07:43 AM
  #34  
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Originally Posted by mschwett View Post
Yeah, you can definitely get some more miles out of that tire, but you should remove that glass shard that's visible slightly left of center in the pic, appears countersunk by maybe 1mm in to the tread. I typically use a tiny awl or large sewing needle for that purpose.
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Old 02-07-22, 08:19 AM
  #35  
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Originally Posted by Bob Ross View Post
Yeah, you can definitely get some more miles out of that tire, but you should remove that glass shard that's visible slightly left of center in the pic, appears countersunk by maybe 1mm in to the tread. I typically use a tiny awl or large sewing needle for that purpose.
thanks! obviously i need to look closer at my tires!!
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Old 02-07-22, 08:20 AM
  #36  
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Originally Posted by MinnMan View Post
I don't think you're in severe danger of a flat owing to the level of wear, but when a tire gets that squared off, I'd retire it.
thank you - eases my mind a bit that its not much more likely to blow apart or something at this point.

whats the main impact of squaring off? rolls slower due to so much more contact?
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Old 02-07-22, 08:23 AM
  #37  
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Originally Posted by Branko D View Post
That tire looks nearing retirement but not quite there yet. When the wear marks are invisible, it's time to bin it imo.
thanks. gonna squeeze another couple hundred miles out of it - the west marks are noticeably harder to see than they were just 200 miles ago.
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Old 02-07-22, 08:25 AM
  #38  
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I would 100% replace it.

too many cuts right to the casing
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Old 02-07-22, 09:40 AM
  #39  
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I got about 8,000 mi out of my last rear-mounted GP5000. I trashed it after its first flat, with the dimples still visible. It was pretty squared-off, but I noticed no big change in handling.
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Old 02-07-22, 10:10 AM
  #40  
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Originally Posted by MoAlpha View Post
I got about 8,000 mi out of my last rear-mounted GP5000. I trashed it after its first flat, with the dimples still visible. It was pretty squared-off, but I noticed no big change in handling.
damn. 8,000 miles! i wonder what im doing wrong. running on low pressures maybe?
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Old 02-07-22, 10:24 AM
  #41  
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Originally Posted by mschwett View Post
damn. 8,000 miles! i wonder what i’m doing wrong…. running on low pressures maybe?
I weigh in the low 140s and the bike is about 18 lbs all-up. I was running 65-70 PSI until I got a couple of pinch flats on potholes and went up to 80/85 late in that tire's life.
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Old 02-07-22, 10:37 AM
  #42  
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Originally Posted by MoAlpha View Post
I weigh in the low 140s and the bike is about 18 lbs all-up. I was running 65-70 PSI until I got a couple of pinch flats on potholes and went up to 80/85 late in that tire's life.
185 + 25 lb bike here; so 160 vs 205. a difference but not night and day. might try a bit higher pressure on the next set.
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Old 02-07-22, 03:06 PM
  #43  
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Originally Posted by MoAlpha View Post
I got about 8,000 mi out of my last rear-mounted GP5000. I trashed it after its first flat, with the dimples still visible. It was pretty squared-off, but I noticed no big change in handling.
Wow, My rear gp5k last ~3500 miles before the rubber peels from the casing along the tread area before dimples are gone. I am 170+20 for the bike. I wonder if it is the heat.
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Old 02-07-22, 03:12 PM
  #44  
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Originally Posted by mschwett View Post
damn. 8,000 miles! i wonder what im doing wrong. running on low pressures maybe?
Originally Posted by noisebeam View Post
Wow, My rear gp5k last ~3500 miles before the rubber peels from the casing along the tread area which is well before the dimples are gone. I am 170+20 for the bike. I wonder if it is the heat.
Yeah, I have always been easy on tires. I suspect it's mostly about being light and weak. That was my first rear GP5000, but the front, which I rotated to the rear when I retired it is looking like it will go a similar distance.
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Old 02-07-22, 03:27 PM
  #45  
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Great to read that other brands aren't lasting more than ''mine''. My Schwalbe Pro One lasted 4000kms (2500 miles) last year. It seems to be the norm.
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Old 02-07-22, 06:59 PM
  #46  
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Originally Posted by Branko D View Post
That tire looks nearing retirement but not quite there yet. When the wear marks are invisible, it's time to bin it imo.
I cut across a worn GP4000 some years ago. The wear dimples were still visible, but almost gone. I assumed there would be plenty of tread left.
No. the remaining tread was paper thin. The dimples are accurate.

Squaring off
I notice the rear squaring off quite early. But after that initial wear, it progresses quite slowly. I assume the wear surface is wider, so wear slows down.
I'm guessing 4000 miles on the rear tire. Then I move the front to the rear, otherwise it sits on the front for years, accumulating cracks and cuts.

More flats from worn down tires?
It's accepted wisdom, but is it true at all? The tread is maybe 2mm thick when the tire is new. How is that more cut proof than 1/2 mm at the end of the year?

Mileage
Tires wear out fast for strong riders. They are putting way more force into the rear tread, more often. Sitting and spinning is way easier on tire life.
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Old 02-07-22, 07:21 PM
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Originally Posted by rm -rf View Post
More flats from worn down tires?
It's accepted wisdom, but is it true at all? The tread is maybe 2mm thick when the tire is new. How is that more cut proof than 1/2 mm at the end of the year?
i mean, i assume something which was only capable of penetrating 1mm into the tire would blow out a tire with 1/2mm of rubber but not 2mm? perhaps it doesn't work like that?

Originally Posted by rm -rf View Post
Tires wear out fast for strong riders. They are putting way more force into the rear tread, more often. Sitting and spinning is way easier on tire life.
i'm not a particularly strong rider - 200w-240w for two hours is sort of my standard ride. but i do wonder if a lot of extended climbing in the saddle wears the rear down fast, with even more weight on the rear tire vs the front than usual.
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Old 02-07-22, 09:46 PM
  #48  
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Originally Posted by mschwett View Post
i mean, i assume something which was only capable of penetrating 1mm into the tire would blow out a tire with 1/2mm of rubber but not 2mm? perhaps it doesn't work like that?
Sure. But it's mainly the high tech fabric under the rubber that's supposed to stop the sharp bits.


i'm not a particularly strong rider - 200w-240w for two hours is sort of my standard ride. but i do wonder if a lot of extended climbing in the saddle wears the rear down fast, with even more weight on the rear tire vs the front than usual.
200-240 watts for the ride is well above average, I'm guessing.

I think almost every rider increases the effort considerably on climbs compared to flats. Even the casual pace cruising riders that I sometimes ride with.
And at some moderate grade, the watts have to increase anyway, or the rider will fall over from the very slow speeds. I'm thinking the tire wear from pedal force on the climbs outweighs the free, coasting downhill portions.

I was just thinking of a few riders I know that have loud tires sounds with each pedal stroke. Perhaps they have larger peak watts instead of a smoother pedal action, or more steering action with each left-right stroke. That noise is probably extra tire wear, too.
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Old 02-07-22, 11:02 PM
  #49  
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threads came out to play around the entire rear tire on the last ride. front tire looks like maybe 500 miles left. installed both new conti gp 5000s together. 3,629 miles on that rear tire. approx 20 dirt miles included.
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Old 02-08-22, 08:40 AM
  #50  
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Understand its all situational, but I have 4000+ miles on my GP5000's. According to the wear indicators they have plenty of life left in them, and still feel great. I have had one flat in 4000 miles!
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