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Old 13-Mar-2009, 20:21
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DSC Region Organiser skidlids skidlids is offline
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Mark my view is that a ZR rated tyre has to have a stiffer carcass than a H rated tyre and is therefore less likely to flex. Allowing the tyre to flex will help it match the surface it is trying to follow and providing you have the pressures right the generated heat along with the improved contact patch should offer more grip.
now if I wanted the ZR rated tyre to do the same I have two choices, either feed more load through it by either using a bike with more power/torque or sticking a passenger on the back.
anyone for two up racing


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Old 13-Mar-2009, 20:32
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Quote:
Originally Posted by skidlids
Mark my view is that a ZR rated tyre has to have a stiffer carcass than a H rated tyre and is therefore less likely to flex. Allowing the tyre to flex will help it match the surface it is trying to follow and providing you have the pressures right the generated heat along with the improved contact patch should offer more grip.
now if I wanted the ZR rated tyre to do the same I have two choices, either feed more load through it by either using a bike with more power/torque or sticking a passenger on the back.
anyone for two up racing
Hi Kev,
Just going by what is published in the public domain as recomended for the machine by the tyre manufacturer, and what are the implications if 'forced' to stray away from those published, public recomendations.

Anyone fancy a bit of a liabilty law suit.................

MarkO
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Old 13-Mar-2009, 20:36
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Old 13-Mar-2009, 20:40
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DSC Region Organiser skidlids skidlids is offline
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There's a difference beteen Road and Track use
Pirelli have always recommended lower pressures for Racing, when I was a member of the Pirelli Riders club using Diablo Corsas the tyre pressures recommended were Fr=31psi and Rr=30psi or reduce those figures by 1psi if using warmers.
Racing focuses on a narrow spectrum of conditions, unlike road riding
differences can include Passengers, Pot holes, drain covers, level crossings, snow, ice etc etc


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