NEW GP5000S TR

[tonytourist]

I've only been on hookless rims on the road bike for the last 3 years, no issues with tires on the approved list. Even better that there are more options out now, I wouldn't worry if you're sticking with Continental TRs.

[blackcatwheels]

I just scrapped two brand new S TR tires. I could not seal them. Air was going out through side walls and side walls are thin like a paper. Tires were fast and super light but with 80ml of Orange sealant, they were loosing whole air in few hours.
I had similar issue with GP5000 TL models where I returned 10 tires, all with the same issue. Big disappointment and quality issues by Conti.

[Maddie]

My gp5000s tr weep through the sidewalls too but only when new and before I add sealant. After adding 30ml of Orange Regular sealant to each wheel, the weeping stops completely

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[blackcatwheels]

My gp5000s tr weep through the sidewalls too but only when new and before I add sealant. After adding 30ml of Orange Regular sealant to each wheel, the weeping stops completely

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lucky you as those tires are really fast.
In my case I added 40ml of sealant, rode, then added once more 40ml, rode and still they were loosing air in 4-5 hours. 80ml / tire was extra 80g so no point of lightweight tires. Switched to latest Schwalbe pro one and they kept air for 24h without any sealant

[Lakal]

I just scrapped two brand new S TR tires. I could not seal them. Air was going out through side walls and side walls are thin like a paper. Tires were fast and super light but with 80ml of Orange sealant, they were loosing whole air in few hours.
I had similar issue with GP5000 TL models where I returned 10 tires, all with the same issue. Big disappointment and quality issues by Conti.

My experience is the same as Maddie.
Did you try with different wheelsets?
I haven't heard about these quality issues before.

[blackcatwheels]

I just scrapped two brand new S TR tires. I could not seal them. Air was going out through side walls and side walls are thin like a paper. Tires were fast and super light but with 80ml of Orange sealant, they were loosing whole air in few hours.
I had similar issue with GP5000 TL models where I returned 10 tires, all with the same issue. Big disappointment and quality issues by Conti.

My experience is the same as Maddie.
Did you try with different wheelsets?
I haven't heard about these quality issues before.

Nothing to do with wheelset. On the same wheels I installed Schwalbe pro which worked like a charm

Air should never leak through side walls. It's not a job of sealant to fix that. Adding 2x more sealant kills the purpose of lightweight tire IMO. I remember using GP5000TL tires when they showed up for the first time. They were perfect and I rode across whole Switzerland using those. Then, with time when offering them in wheelbuilding for clients I started to get more and more warranty claims. When I showed that to Conti they asked to return whole batch of tires and they honoured refund with no questions asked

[FlatlandClimber]

If you can say for certain, that it's not the wheel (usually this is the rim tape), then you either have faulty sealant or a faulty tire. I run these on several bikes and they have Bein flawless. 30-45 ml of sealant (depending on width and usecase) and they are air tight.

[blackcatwheels]

If you can say for certain, that it's not the wheel (usually this is the rim tape), then you either have faulty sealant or a faulty tire. I run these on several bikes and they have Bein flawless. 30-45 ml of sealant (depending on width and usecase) and they are air tight.

not the wheel and not the tape. Tape stayed the same and new tires don't loose air
I always make soapy test before adding sealant. If I see lot of bubbles on side walls, that means trouble
https://www.dropbox.com/s/gqk6g3yyzag0s ... 1.MOV?dl=0

[spdntrxi]

only thing I notice about 5000sTR vs other tubeless is more sealent leakage from the rim/tire interface, not from the actual sidewall themselves (like ReneHerse)

[Mr.Gib]

Shocked to hear about leaking 5000TR. I guess mine are without this defect. Mounted with no sealant weeping from anywhere. Held air perfectly from first minute. Orange Seal regular.

[kervelo]

Never had any issues with 5000 S TR. The tyres can be easily seated with just a floor pump and they hold air without the sealant pretty well. No sealant coming thru the side walls (using Orange Seal). As already said, most likely a faulty tyre or the tyre was damaged during the installation.

[spartacus]

If anyone can't get theirs mounted and is going to bin them, I'll pay shipping for them so they don't go to a landfill.

[maxima]

Instead of dumbing the tyre that doesn't seal, put in latex tube and use it?

I've been thru 6 pieces of 5000S TR in both 25mm and 28mm width, 2 pieces will lose air regadless using as much as 60g to 90g sealant. Air lost is as much as 30-40PSI in half a day(8-12hrs), which is unaccepatble, while the 4 pieces will lose 10-20 PSI max overnight(12hrs) - this is at least acceptable.

Have use Silca, Joe's and Orange Sealant -- given up on this!!!

Never had any issues with 5000 S TR. The tyres can be easily seated with just a floor pump and they hold air without the sealant pretty well. No sealant coming thru the side walls (using Orange Seal). As already said, most likely a faulty tyre or the tyre was damaged during the installation.

[DieselCondor]

Looks like I'm going to have to swap
Out my corsa next's in the next month as they are getting tatty.
They have been great winter tyres but I would like something quicker for spring/summer.
Can any UK/other crap climate gp5000s TR users feedback on their long term experience in less than perfect conditions?

[raggedtrousers]

Looks like I'm going to have to swap
Out my corsa next's in the next month as they are getting tatty.
They have been great winter tyres but I would like something quicker for spring/summer.
Can any UK/other crap climate gp5000s TR users feedback on their long term experience in less than perfect conditions?

I can't offer long term experience, but I can offer a 'so far, so good'.

For reference, I was a pretty committed GP5000TL user, and regarded them as the gold standard for a fast tyre that was actually robust enough for 3 season riding. However, when I bought the 303FC (obviously hookless), I went to the Goodyear Eagle F1 on various recommendations and because my LBS were offering a very good deal on them. To be fair, they have been absolutely fine - easy to fit, sort of fast, grippy-ish, have held pressure well, and had no punctures in around 10,000km - but nothing special. The back tyre was about 90% worn at this point (front I'd guess 65-70%) as well, and as I had £100 in vouchers at Sigma that were coming up to expiry, so I took the plunge on a set of GP5000S TR in 30mm.

Both tyres mounted fine - 1 tyre lever needed for the last section on each, but no great force needed - and both seated first time with a basic track pump. The bead snapping in is loud on these! On first mounting, 1 tyre lost a decent amount of pressure overnight; adding an extra 20mm sealant, then taking it for a ride, fixed that. Mounted on 303FC they come up ~32mm.

I've got about 300km on them so far, including in some pretty crap weather. I ride mainly semi-rural lanes, so road quality is often poor, though I do try to avoid sections that are very potholed or broken. So far, they have been great; they are noticeably quicker and grippier than the Goodyears they replaced. Touching wood, no punctures of any kind so far. The ride feel is very similar - neither match Corsas - but they're certainly not garden hoses, either.

Like all tubeless (in my experience) they do lose pressure slowly; I've found they're dropping from ~50 to ~40 over the course of a week. But it's a 5 minute job to sort.

I don't seem to have lost any speed going from 28 to 30mm, but the grip and comfort are definitely better. For an all-round fast road bike, I think 30 or 32 is a bit of a no brainer if your frame will take them.