20"tyres...
Ive just done exactly this move, from RFT,s to Non RFT,s...
I had the Bridgestone RFTs on the car, ive just replaced them with the Toyo T1 Sport suv tyres.
And have tested them nicely, having just done a weekend "thrash" from Blackpool, to Spa in Belgium [Spa classic racing]... Aprox 1600 mile round trip...
They were brilliant, even my passengers commented on how comfy and supple the ride was, the car is a 3.0sd M sport version.
The road noise is slightly quieter, but its the ride comfort that was a big improvement.
Oh and on a side note.
I was after the Toyo Proxy S/T,s, but couldnt get them in the 275 fronts from anywhere, and beleive me i tried... I think Toyo are phasing them out.
The only reason i was after these was so i could swap them round on the rim / wheel when they wear the inside or outside edges out due to the X5 BMW alighnment settings. >:( As you cant do this with assimetric tyres.. >:( >:( In fact it seems very dificult to get NON assimetric tyres now... ::) ::)
Happy hunting....
Dave W.
BMW E70 X5 40D