Alternative continental gp 4000s

[Timmy269]

My tires are not good any more and my TS only sells Schwalbe and Vittoria.
Which tire is a good alternative of my currnt continental gp4000S?

Or are the continentals much better?

[Marin]

New Conti GP4000s. Try a different size maybe?

Vittorias are almost as fast and have a nicer rider.

[dadoflam08]

Schwalbe Ones are my pick - far better durability and puncture resistance than Vittoria, better ride qualities than Contis - although the new Conti GP4000s II is meant to have really good low rolling resistance if your riding is more straight line/flat

[MattSoutherden]

The Vittoria equivalent of the 4000s is the Open Corsa Evo CX II

[Timmy269]

The Schwalbe one and the Vittoria open corsa III are better than the 4000s in rolling resistance and punctureproof or have schwalbe and vittoria other better series?

[Samuel Sanchez Gonzalez]

Gp 4000 S II have one of the lowest rolling resistance, even if it doesn't feel as supple as Veloflex or Vittorias.

Only beaten by... Continental TT clincher (named Podium or something like that) not in this test but another one.

Also at lower pressure makes a big difference against others

[Timmy269]

Gp 4000 S II have one of the lowest rolling resistance, even if it doesn't feel as supple as Veloflex or Vittorias.

Only beaten by... Continental TT clincher (named Podium or something like that) not in this test but another one.

Also at lower pressure makes a big difference against others

So, the gp4000 S II is better then the other.

My next question is: should I buy the 23mm or the 25mm version. I Always had the gp4000S in 23mm.

[Samuel Sanchez Gonzalez]

I saw some tests claiming 25mm were rolling even better than 23. But we're splitting hairs. Improvement in comfort and grip would be more noticeable.

[Marin]

I'm on Conti GP Force 24 on the rear and GP TT 23 in the front, they are GP 4000s with less rubber, but the same puncture protection, and they are only 185g each. Ride seems a bit better too even coming from 25s, but I also went to latex tubes.

[showdown]

Consider your roads and where you ride.

I have used the GP 4000s for years and while they're certainly not as supple as the Vittorias the fact that I ride on really lousy roads with potholes and debris, I'm willing to give up a bit to ensure that I don't puncture. If you run the 25s (depending on your weight) you can run them at pretty low pressure for a better road feel- I have mine at 75 front, 90 rear. The Conti tires run a bit narrower than Vittorias (and other tires) so you might even consider 28s as they'll be closer to a 26/27...

[tinozee]

I also agree what was said above - vittoria, great ride like a tubular, but can completely tear on a hard edge like a root or sharp pot hole. I would only get size 25s if you have a wider (23-26mm) rim to support it, in that case wider is better. Otherwise the 23s are great on narrower (20-22mm) rims. On days I race or want to go maximum speed I go for Conti clinchers or veloflex tubulars on deep section wheels.

[pdlpsher1]

If I'm reading the chart correctly using latex tubes saves about 2 watts?

[KarlC]

Do they make the GP 4000 S II in 25mm Tubular, if so where can we buy it ?

Thx

[BRM]

viewtopic.php?f=3&t=131537

[Timmy269]

Thanks, I just bought the 4000s II.
The next question I have is: I have dat Swiss RC spline 55 rims. I alwys used schwalbe innertubes of 60mm. I just can screw the pump on the valve. This week I bought a innertube from specialized 60 and with those I can't.
The valve of 80 mm looks so huge, and some of them are threaded all the way.
Do you have any other sugestions?