Brake Pad Size

[CyberJamSam]

Hi All

long time no see!

I’m trying to find the correct size brake pads to fit my focus. It’s a mk3.5 2017 Titanium X, Petrol 1.5l Ecoboost, manual 6-speed, 5 door hatchback.

I’ve got as far as the brake disc sizes being 300mm for the front and 271mm for the back (pease correct me if I’m wrong) but there’s so many different pads on sites like GSF, Eurocarparts (+carparts4less), AUTODOC etc…

I’m also not sure if the model has wear indicators/sensors. 
Any information is highly appreciated!

[TomsFocus]

I don't think these have wear sensors but it's easy enough to check your car.  Either through the wheel spokes or using a mirror from behind.

The different pad types are for different sized discs.  If you look at the 'extra info' section on websites, it should show which discs the pads are for.