Diamante Pro radiale and a fish-tail issue - Page 2 - Cyclingnews Forum

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General Which tyres for Paris-Roubaix? Whose time trial bike is fastest? Suspension mountain bikes or singlespeeders? Talk equipment here.

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  #11  
Old 12-11-12, 20:52
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Originally Posted by Stingray34 View Post
125 psi is kind of a high pressure for aussie roads; tires at high pressue tend to slip more often. Try at 100psi and see if still gives trouble. Learnt my lesson with Vittoria tires, Contis all the way for me.
pressure range for the diamante is 120-145psi, so I'm just over the minimum.

and the tarmac of West Head rd where we race is schmick
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  #12  
Old 12-13-12, 15:44
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pressure range for the diamante is 120-145psi, so I'm just over the minimum.

and the tarmac of West Head rd where we race is schmick
Just for an update. I called the Vittoria distributor in the US and these tires, Diamante Radiale, have been recalled, in the US. Due to lack of stability and extremely short tread life..you may want to check with the place you got them to check with distributor.
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  #13  
Old 12-13-12, 22:18
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Originally Posted by Bustedknuckle View Post
Just for an update. I called the Vittoria distributor in the US and these tires, Diamante Radiale, have been recalled, in the US. Due to lack of stability and extremely short tread life..you may want to check with the place you got them to check with distributor.
cheers for that!!

will have to check records, but reckon it was a chainreaction or wiggle purchase...
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Old 12-14-12, 14:15
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cheers for that!!

will have to check records, but reckon it was a chainreaction or wiggle purchase...
That might be a problem, they 'may' self warranty but most of their stuff is gotten thru 'alternative' distribution channels. I doubt they can call Vittoria SPa and ask for guidance. BUT give 'em a call.
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Old 12-16-12, 15:23
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Originally Posted by Archibald View Post
pressure range for the diamante is 120-145psi, so I'm just over the minimum.
Face*Palm

..........
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Old 12-16-12, 21:58
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That might be a problem, they 'may' self warranty but most of their stuff is gotten thru 'alternative' distribution channels. I doubt they can call Vittoria SPa and ask for guidance. BUT give 'em a call.
wiggle[.com.au] came back saying they know nothing of a recall and are requesting the source...

i'm currently awaiting a response from Aust distributor and Vittoria themselves

Last edited by Archibald; 12-17-12 at 06:24.
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  #17  
Old 12-18-12, 22:25
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Can confirm that, there is no recall order anywhere for these tyres, according to Vittoria themselves.

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Originally Posted by Stingray34 View Post
... tires at high pressue tend to slip more often. Try at 100psi and see if still gives trouble...
It is a pressure issue, and after dealing with one of the original test riders, the recommendation for my weight is to run them at around 135psi (give or take 5psi).
It's to do with the construction and high TPI, which doesn't appear to go too well with the lower pressures...
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  #18  
Old 12-19-12, 01:08
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Originally Posted by Archibald View Post
Can confirm that, there is no recall order anywhere for these tyres, according to Vittoria themselves.

It is a pressure issue, and after dealing with one of the original test riders, the recommendation for my weight is to run them at around 135psi (give or take 5psi).
It's to do with the construction and high TPI, which doesn't appear to go too well with the lower pressures...
135 PSI?? How much do you weigh? A 120 kilos?
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Old 12-19-12, 05:41
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135 PSI?? How much do you weigh? A 120 kilos?
It's Karelin. He's a beast on the bike also...
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  #20  
Old 12-19-12, 06:39
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Originally Posted by BroDeal View Post
135 PSI?? How much do you weigh? A 120 kilos?
far less than that, bike included.

it actually sounds like a plausible idea. Radial tyres for motor vehicles have steel belts in them to improve the side wall stability, so perhaps the increased pressure gives the radial bike tyres that extra "hardening" without using steel belts in them?
Radial construction isn't conventional bike tyre construction...

Who knows, I'll give it a shot and see how it goes. If it works, great... if not then I get rid of these tyres and move on.

Besides, I know some other folk running their tyres at 130psi+, and one guy who runs his tyres at 140psi.
might be too high for his rims, but he has no issues in being well at the pointy end come the finish line each month.
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