edwin,

i just got it from my local REI, $50, i think u can get it a little cheaper on website, i just can't wait to put it on.

johnapolo, thx for ur idea, actually i thought about it, but the plastic bracket will be more fragile if i cut the round part off, so i just leave it there, as long as the wind noise is nolonger there, fine with me.

pity the center part bracket is not the same as the two side ones, otherwise, it's almost perfect, i could use another 2 mighty mounts .

xiaoz