a friend of mine who owns an x6 just changed to 21" wheels, he sold this set of wheels and tires to me at HK$20,000 (around US$2,600). This set of wheels an tires only runs more than 1000 Kms.

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--2004 E53 X5 4.8is - ECE version; right hand drive; Located in Hong Kong; ext. black sapphire metallic; int. leather black; adaptive dynamic bi-xenon headlights; 16:9 onboard monitor w/o navigation; 20" genuine BMW Y-spoke 214 wheels with Bridgestone Dueler H/P Sport tires; Int. rear view mirror w/ compass.