yet another roof rack question....

[Abby-vibe03]

Hey, I did a search but couldnt find what i am looking for.. sorry if i am repeating a thread...anyway here is my problem... i have been through about 3 different setups for bike racks.. and finally found a roof/rack mounted one that i like... however it does not fit on the present cross beams because they are too wide.... My question is: does anyone know if other styles of cross beams are available for the vibe... i.e. thinner ones?? Cheers!