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      11-01-2012, 07:12 PM   #87
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Drives: 1M
Join Date: Jan 2011
Location: Lisbon, Portugal

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Originally Posted by TomTom///M View Post
Oops, my mistake / typo, obviously I meant 275/35, not 275/25.
OK, then your reputable tire guy is a bit off to say the least since you will not have any issues with the car's speed sensors or else just because you choose 1 size more from stock size. Going from 265 to 275 your tire diameter will increase from 26.3 inches to 26.6, a 0.3 inch increase (taller tire) which corresponds a bit over 1 %, that's it. Your stock tire makes 790 revs per mile while a 275/35 will make 783. These are not big enough deltas to give your car's electronics any issues and you won't be able to notice the speedometer difference which already reads around 3 to 5 % over actual speed anyway, like most cars. So with 275/35 you will see 160 km/h while you will be doing 155 and with stock tires you would read 158 or 159 and not 160! There are no other "problems" you could have with just 1 size larger rear tire.

Lots of guys here are with 275 to even 315 rears on stock wheels with 0 issues.

So, if you want them ignore that guy and just buy the PSS. Otherwise, just try the track tires since you don't care the downsides of those in Dubai conditions.
"The mark of a great car is one whose overall competence exceeds what you should expect from its individual components and the 1M does just that", Chris Harris.
BMW 1M-SOLD-: TECH: Evolve Race+N55mids, Evolve IC, Michelin PSS, ER cp, aFe filter, CDVx, Vorshlag camber plates, BMS OCC EXTERIOR: trunk spoiler, blacklines, black grills, IND goodies INTERIOR: Alcantara steering wheel, steel pedals, custom mats, MPower e-brake.