Hi all! Recently my steering wheel vibrates when slightly pushing brake at high speed over 130KM/H. However it has no vibration at all when at 110KM/H or lower. Wheels were well balanced when I changed all the tires 2 months ago. I also renewed all brake discs and all brake pads, all are BMW OE parts. Any ideas guys? Thanks!

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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.