Quote:
Originally Posted by PropellerHead
Are these OE style 87's or replicas?
I think the culprit is those runflats. My bet is they're way more than 41lbs. Great for the practical application, but runflats are notoriously heavy. Not usually a big deal on a car like the X5, but certainly noticeable on a 3.0.
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Revisiting this, and PropellerHead was right-on. I swapped out the Bridgestone runflats for non-RFT Continental DWS, and boy what a difference! The small-imperfection harshness is practically gone, and the car feels more nimble again.
I weighed the runflat tires coming off at 38.6 lbs front and 43.2 lbs rear.
Replacement tires weigh 28.9 lbs front and 33.3 lbs rear with more tread - a savings of 10 lbs per corner!