I have a Thule roof aero bar system for my old car, a Mercedes A-Class.

Now I've got the vRS Fabia I've been looking into what I need to replace to get the aero bars to fit.

According to all the web sites I need a new foot pack and fitting kit (fair enough), but they also say I need new bars.

Looking into it, the aero bars are all the same apart from the length. Mercedes ones are 120cm & Fabia ones 108cm

My question is - why can't I just put the new feet on my old bars, there is adjustment in the spacing of the feet, and I can't imagine an extra 11mm on each side will make a lot of difference.

Has anyone any experience of fitting Thule aero bars?

That works out at 60mm per side doesn't it?

That works out at 60mm per side doesn't it?

Does indeed. Not used to CMs and I'm tired - my excuse anyway

That's why the bars are different then - bugger, more expense.

If the old bars have enough adjustment, just cut them down to 1.08 m. Saves the expense of new bars