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YOUR RESEARCHTyres
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Run flat hence the difference in price
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Suggestion
XL is Extra Load which has stiffer side walls and ZP is Zero Pressure meaning run flat hence the difference in price.
Leading evidence: 'Run flat hence the difference in price' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run flat hence the difference in price' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Sorry if this has been done to death earlier - cant find a thread.
Need advice re tyres.
My 996tt has PS2 on the back and Conti on the front (bothN2)
Cant find N2 PS2 any more. N3 available from Porsche. Rears have plenty of tread and dont need changing. OPC say can't mix and match N rating or manufacturer.
Any suggestions? Also - anyone know reputable tyre specialists in East Lancashire. :?:
Sounds a bit confusing :?
What are you looking for? You say rears dont need changing, so I assume you are looking for Michelin PS2 fronts N2 rated? I'd say if you can't get N2 rated then normal Mich PS2 will be fine, any difference if at all related to N rating would be advantagous over the bank end, as I say 'if'.
Would these be any good?
MICHELIN 225/40R18 MICH PIL SPT2 92Y XL @ £117.65 each
Can someone explain the difference between those and these:
MICHELIN 225/40R18 MICH PIL SP2 88Y ZP @ £188.94 each???
Your OPC doesn't understand the N rating system. They're simply different generations of the same tyre that have been through Porsche approval (the N rating system).
There's absolutely no reason why you can't put a pair of N3 PS2's on the front to match your rear PS2's. Not such a good idea to mix different N numbers on the same axle though.
As OC says, different tyre manufacturers may be on the same N number but it doesn't signify that they can be mixed.
No surprise everyone gets confused about this, so many options and little detail to help everyone understand. It's all about speed rating and load rating, see below.
XL is Extra Load which has stiffer side walls and ZP is Zero Pressure meaning run flat hence the difference in price.
With so many options probably another reason for the N rating system.
Correct Michelin SP2 spec for 18" is
225/40ZR18 88Y N3 Front
285/30ZR18 93Y N3 Rear
In simple terms the ZR rating in conjunction with the Y speed rating means it's a pimped Y spec for cars that can exceed 150MPH for a prolonged period but not exceed 190MPH which is really handy around here of course! :thumb:
This is a source reference. Confirm exact model applicability in the original material.
