Hi Spec 310mm brakes.
 

Does anybody know if these Hi-Spec 4 pots with 310mm discs would be a direct fitment to a ZS.

Heres a link to the kit.

http://www.hispecbrake.co.uk/220310B4.html

May be a bit too big, the standard calipers are pretty close. Unless you change your wheels..

Ive got the 17 inch 11 spoke wheels on mine, do you think they'd squeeze under?

No, unless you use spacers, I think the only wheels that might fit are oz ultralegs or superlegs

Or 18s? ;)

Do we know anyone selling some 18's:question:

I know someone.........

I thought you might

It would be worth contacting HiSpec to find out if they will fit a zs, the 220 and zs uprights are slightly different designs.