Quote:
Originally Posted by M2siast
Sorry, why is it important to compare a PS4S tire to a PS4? Star spec or not? I am not sure I get the symbolism.
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My understanding is that the 'Star' Compound version of the PS4s that comes on the G87 is a compound recipe developed by Michelin with BMW specifically for the G87. It supposedly has much of the 'Cup 2' DNA in it, etc.
Your 'off the shelf' PS4S tires from a tire dealer in the same size won't be as sticky, but perhaps better treadlife? I'm not certain myself. I haven't compared the tread-life ratings.
I haven't priced the star compound tires, but my guess is that they are just too pricey for me to replace them once worn with another set of star compound. I'll just run the off the shelf versions for my needs. I won't be tracking the car anyway.
My point was that I don't want to ruin the special compound tires before I have a chance to experience them. I may not buy another set unless I just can't believe the difference they make.