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My Travel Contacts are 37 when measured at the Conti factory. They then shrink before they get to the buyer and are 32 by then. I think Conti are have the most out of whack measuring machine of any of the tyre manufacturers as all Conti's I have owned have been undersized.
And fair point GA2G, I will shut up about touring tyres now :-)
Hmmmm, I think mine might be labeled 37, but when I put my Richey 35mm CX tyres on I have to remove my mudguards, weird. Boring, but none the less weird.
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sweet
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Nowhere in London sells them as far as I could find out, what was a year ago though.
Which means I've gone over a year on mine with zero punctures.
Ultra races truly are shit by the way.
Man, I am so fucked off with the Conti Ultra Races I've got on the Colnago... They are totally shite, almost up there with Ultra Sports for shiteness... They were free tho'... I'm gonna get some 23c Gatorskins tomorrow unless someone can point me to a store selling Maxxis Refuse... I need new tyres TOMORROW...
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Man, I am so fucked off with the Conti Ultra Races I've got on the Colnago... They are totally shite, almost up there with Ultra Sports for shiteness... They were free tho'... I'm gonna get some 23c Gatorskins tomorrow unless someone can point me to a store selling Maxxis Refuse... I need new tyres TOMORROW...
If you must get conti, go for the grand prix 4 season instead, gripper with the same puncture protection.
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Does anyone know where online i can get 40c+ rando's?
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Without checking, how about Wiggle?
nope, already checked it
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If you must get conti, go for the grand prix 4 season instead, gripper with the same puncture protection.
+1 I've lost grip and even hit the deck riding conti gatorskins. 4 seasons seem to provide a lot more confidence especially in wet conditions. They are a bit more expensive but seem to last a long time.
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An update on my use of Halo Courier Berlin tyres.
To date, I've have three deflations. NONE were punctures. The first blowout was due to an ill-fitting tube. Bang! Yesterday was due to a pinchflat. I hadn't inflated it for a while, and I guess the pressure dropped to maybe 90psi, which under me, is fatal. Bang, she went. And the third was also yesterday. After fixing the tube, and refitting the tyre, I overinflated the tyre up to 140psi. Bang! Again.
It seems that my Rennkompressor pump and my portable WidPipe, may have a slight difference in the readings. I pumped to 140psi on the WindPipe, and she exploded like a balloon. Maybe the Rennkompressor's guage reads a few psi less at the same pressure as the Windpipe. At least I've learnt, to only overinflate to 130psi.
On checking my back tyre, I noticed that it was all cut to hell, with some deep and nasty looking gouges. I've now glued those all up. But I've used the tyres for quite a while now, and have never bothered even to take the bits of broken glass out. So far, its not punctured from any intrusions.
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A new tyre has been launched, the Schwalbe Ultremo Aqua. I first saw it at the Cycle Show. Looking at the tyre, reminded me of the argument on pages 15-16 of this thread, where *kerley*, *velo_libre* and *rik*, all tried to show me how wrong I was about my views on tyre treads. Even hippy said that it meant little to nothing. Smallfurry was the person that thought along the same lines as myself.
Here is the new Schwalbe Ultremo Aqua.
Obviously different to the standard Ultremo.
On reflection, I think its useful to compare some other top rated tyres, that are similarly evidencing their siping lines (channels for water dispersal). Those who follow Sheldon Brown's theories on tyre construction, may not agree at all with what race tyre engineers produce.
For those that think road/race tyres should be completely smooth (a la Sheldon Brown).....well, tyre makers' men of science disagree.
As for the idea that a marketing department would be able to influence the physical properties of a final product,
apart from colour and packaging, that.......is quite ridiculous.
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Man, I am so fucked off with the Conti Ultra Races I've got on the Colnago... They are totally shite, almost up there with Ultra Sports for shiteness... They were free tho'... I'm gonna get some 23c Gatorskins tomorrow unless someone can point me to a store selling Maxxis Refuse... I need new tyres TOMORROW...
last time i asked, edwardes where able to order them in. just saying.
i am rather happy with conti gp4000 up front and supersport plus rear until somthing equally cheap (rear!) and lasting comes along. (fuck right off with randods until you are able to give a me reliable source for 25c)
i wait for the schwalbe skids to try as more rubber always goes.
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teenslain, if you still looking for Maxxis ReFuse, I got mine from here:
Might actually order another set for my geared bike
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A new tyre has been launched, the Schwalbe Ultremo Aqua. I first saw it at the Cycle Show. Looking at the tyre, reminded me of the argument on pages 15-16 of this thread, where *kerley*, *velo_libre* and *rik*, all tried to show me how wrong I was about my views on tyre treads. Even hippy said that it meant little to nothing. Smallfurry was the person that thought along the same lines as myself.
Here is the new Schwalbe Ultremo Aqua.
Obviously different to the standard Ultremo.
On reflection, I think its useful to compare some other top rated tyres, that are similarly evidencing their siping lines (channels for water dispersal). Those who follow Sheldon Brown's theories on tyre construction, may not agree at all with what race tyre engineers produce.
For those that think road/race tyres should be completely smooth (a la Sheldon Brown).....well, tyre makers' men of science disagree.
As for the idea that a marketing department would be able to influence the physical properties of a final product,
apart from colour and packaging, that.......is quite ridiculous.Why are you showing race tyres in a thread about anti-puncture tyres?
What does manufacturers producing diamond tread tyres prove? They are still making slick tyres aren't they? -
Obviously in Schwalbe's tests, the diamond pattern somehow allows more effective water dispersal, possibly combined with more grip? I don't have their test data to examine though. But they wouldn't just have patterned/dimpled/siped and slick versions of the same tyre....for no reason?
Funnily enough, even though the diamond pattern forms a uniform looking checkerboard effect, just by looking at it, you can see lines that water would follow, if a good speed was built up. I think it would have zero effect at commuter speeds.
As for race tyres being in this thread, from the very beginning, they were in their own section of the list. I have not included any tyres with minimal (ie. none) puncture protection though. All must have at least a kevlar belt, or vectran. Fair?
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No point at commuting or racing speed unless you race at 87mph or something around that speed where aquaplaning comes into effect for tyre of typical bicycle size.
The various patterns may be for rolling resistance, ride comfort or just looks but they are no help in water dispersal as that is simply not required.
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The facts are you will not aquaplane until 80+ mph if above 60psi. Which part of the science don't you agree with, have you come up with better formulas to determine aquaplaning and if so you had better get them out in the public domain as there would be a lot of interest from aviation and car industries I would think.
And why the "Obviously in Schwalbe's tests, the diamond pattern somehow allows more effective water dispersal," comment. How exactly do you know Schwalbe were testing for water dispersal? If anyone understands the laws of aquaplaning I would expect a tyre manufacturer to.
I will say no more as we have a habit in getting into pointless debates :-)
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Obviously in Schwalbe's tests, the diamond pattern somehow allows more effective water dispersal, possibly combined with more grip? I don't have their test data to examine though. But they wouldn't just have patterned/dimpled/siped and slick versions of the same tyre....for no reason?
Funnily enough, even though the diamond pattern forms a uniform looking checkerboard effect, just by looking at it, you can see lines that water would follow, if a good speed was built up. I think it would have zero effect at commuter speeds.
As for race tyres being in this thread, from the very beginning, they were in their own section of the list. I have not included any tyres with minimal (ie. none) puncture protection though. All must have at least a kevlar belt, or vectran. Fair?
Where are Schwalbe's tests?
It's not for no reason, it's to make people buy two sets of tyres for dry and wet roads.
Or, how about they found that the diamond pattern allow for a more flexible casing which increases grip? That has nothing to do with water dispersal but offer increased grip in the wet - did you think about that as an option?
In the case of the Zipp Tangente tyres you used as an example earlier, note that the centre is slick and the sides are dimpled. This looks more like dimpling for aerodynamics than any consideration for wet weather grip. Perhaps diamond patterns lower rolling resistance so they score better in those German tests I can never read?What lines would it follow? It's a chequerboard, with even size squares, so using the 'water follows path of least resistance' idea it could go anywhere.
Commuter speed? Bits of my commute here are at >50kph. In Melbourne, >60kph.
How fast do I need to be going before I can feel it man?
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Anti-Puncture Tyres At-a-glance
Posted by
@GA2G
Man, I am so fucked off with the Conti Ultra Races I've got on the Colnago... They are totally shite, almost up there with Ultra Sports for shiteness... They were free tho'... I'm gonna get some 23c Gatorskins tomorrow unless someone can point me to a store selling Maxxis Refuse... I need new tyres TOMORROW...