Hi, i'm looking to fit Focus ST170 300mm discs, Pads, and calipers to my Escort RS and need to know if I can use any Focus calipers or if it is only the ST170 calipers that will fit with the 300mm discs?

Looking at some photo's on ebay it looks like '05 onwards the calipers are the same as the ST170's and will fit!

Thanks for your help!

 

try the focus st calipers and 320mm discs

 

Yeah but they will be expensive mate!
I can get a pair of normal Focus calipers for under Ł50 and they all bolt on with just a couple of spacers and bolt holes drilled out a litle.

 

I think its unlikely!

Have you thought about mk3 mondeo discs and calipers? All mk3 mondeos (X plate to 07 plate) have the same 300mm front discs, from the 1.8 up to the st220!

 

To answer your question, no they are not the same. The ST170 calipers are unique to the model.

As with what Rich170 says, all Mk3 Mondeos have the same calipers (two different versions though based on age, but direct replacements for eachother). You can run a mk3 Mondeo caliper with an ST170 disc (unless you feel like drilling out a mk3 disc for 4 studs).

 

Cheers!
MK3 Mondeo calipers it is then

 

As above, Mk3 Mondeo calipers are your best option.

The standard Focus has a really weird brake setup where the calipers bolt directly onto the hub, there is no mounting bracket like you would find on most other brake setups. Standard Focus calipers can't be used on anything but the Focus.

ST170's run the more conventional setup where the caliper bolts on to a mounting bracket (which is why you need to change the hubs if you upgrade a normal Focus to run the ST170 setup) but, for some reason, ST170 calipers carry a HUGE price premium over Mk3 Mondeo ones. You should be able to pick up a set of Mk3 Mondeo calipers for next to nothing in a scrappy and they are found on every Mk3 Mondeo so there won't be a shortage of them either!

 

it's the st tax, sort of like the cosworth tax you pay on anything that is reputed to come from a cosworth, be it a engine or an ashtray

 

Christ we have an ST tax as well do we!!!

I know about RS tax but I didn't realise people were stopping that low just yet.

There's a huge scrappy round the corner from me, might swap mine for Mondeo ones and flog my ST170 ones!

 

Cheers chaps!
As you say there's plenty of Mondy ones floating about! Will make a nice upgrade for my RS

 

just bought some mrk3 calipers and st170 disc and mrk 3 pads for the old mondy
will be fitted over easter break oh will also need the brackets too or will not fit

they do make a huge difference know some who has them fitted on his non abs mondy they throw you though the screen
forgot to mention will need four rs focus caliper bolts

 

so will mk3 mondeo callipers fit a standard focus ??

 

No, the focus knuckle/caliper set up is unique to the focus, so nothing else will fit on there unless you fit ST170 front knuckles, but be prepared to pay top dollar for them!

 

"ST170's run the more conventional setup where the caliper bolts on to a mounting bracket"

I changed my ST170 disks and pads 2 weeks ago and im almost certain that there is no mounting bracket, the caliper bolts straight to the hub?

 

Its the knuckle, the hub is the bit that sits inside the wheel bearing that the wheel bolts to.

And yes, there is a seperate bracket that bolts on behind the knuckle!