NEW GP5000S TR

[TobinHatesYou]

Depend on the testing set up.

Using very minimal sealant like on BRR: S-TR has pretty much the same rolling resistance.
Using usual amount of sealant: GP5000 latex is still a tiny (negigibly) faster.

TBH the fairest comparison would be to seal the tubeless tire and remove all extra liquid sealant. The liquid sealant is providing puncture/flat protection… something the latex inner tube doesn’t do.

[ultimobici]

Veloflex tubeless are downright scary.

How so? Mine have been fine since day one.


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[raven14]

Yup, I run the Veloflex Corsa Race TLR as well as Evo TLR on my bikes. I love them for their extraordinary grip and comfort level. Super easy to mount.

They both loose around 0.2 bar per day, which I find very acceptable. They do not sweat (I believe this is what TobinHatesYou is referring to) although they're very light (all of the ones I have, come within 10 grams of their advertized weight). A friend who also uses them says his tyres absorb some of the initial sealant on first installation, but this is not my experience (using regular Orange Seal).

I've not had a flat in around 5k km combined mileage, just 1 small superficial cut in the sidewall incurred on a gravel climb while bike packing in southern France last month. For sure a set will not last 5k km but their price is also lower than other premium TLR tyres.

I much prefer them to the GP5000S TR although they have tested a bit slower on BRR.

[FlatlandClimber]

BRR just tested the tan STR and it's significantly slower. If that's real, that sucks.

[Jackofallgrades]

To me it's highly likely it's down to Continental fiddling with the compound or manufacturing process since they last tested the black version last year, as we've seen quite a few differences in the pattern on the inside of the tyre...

[TobinHatesYou]

Veloflex tubeless are downright scary.

How so? Mine have been fine since day one.

At least over here, the sidewalls get torn to shreds near the end of the tread cap. Additionally they don't have sufficient abrasion protection at the bead and some carbon rim hooks will shred the casing.

My Corsas looked ragged after 900km.

[req110]

I received 2x gp5k s TR 28 tanwall. One was 275 and other 285. The heavier one was more tight to install.

[spdntrxi]

BRR just tested the tan STR and it's significantly slower. If that's real, that sucks.

yes it does.. I'm riding them too.

[Mocs123]

Ditto - I just installed new tan wall STR's two weeks ago....

[warthog101]

BRR just tested the tan STR and it's significantly slower. If that's real, that sucks.

https://www.bicyclerollingresistance.co ... ransparent

Puncture score and wet grip result is better though.

[pdlpsher1]

BRR just tested the tan STR and it's significantly slower. If that's real, that sucks.

I know this may not be financially feasible but a true scientific test involves testing more than just a single sample. I wouldn't take this seriously since Jarno tested a single black tire vs. a single tan tire.

[req110]

BRR just tested the tan STR and it's significantly slower. If that's real, that sucks.

https://www.bicyclerollingresistance.co ... ransparent

Puncture score and wet grip result is better though.

Tan wall of latest generation loses 1-2W, but instantly getting it back on aerodynamics, because 28mm tire is around 2mm narrow than previous S TR which was almost 30mm on my wheels.

[req110]

Here are gp5k s TR after 4100km.
Front really good, rear not great, not terrible.

[Jackofallgrades]

BRR just tested the tan STR and it's significantly slower. If that's real, that sucks.

https://www.bicyclerollingresistance.co ... ransparent

Puncture score and wet grip result is better though.

Tan wall of latest generation loses 1-2W, but instantly getting it back on aerodynamics, because 28mm tire is around 2mm narrow than previous S TR which was almost 30mm on my wheels.

Perhaps those 1-2w are actually just the extra RR you get from a wider tyre then?

[req110]

No, New/slower are narrower.

Older/faster are wider

But difference is only about 1mm as per my latest measurement.