I need to repair my car in order to get a safety check certificate.
The rotor that the workshop would be getting for it is 2x
RAYBESTOS 780541R for the rear wheels. According to the rockauto website, these rotors are
302 mm (or
11.890 in). However, this same website shows other types or Rotors that would be compatible with my car, such as some of
262 mm (or
10.31 in) of diameter.
I already check the owner's user guide and manual to confirm these numbers but I can't find any reference.
This other website says that the Rear Brake Rotor Diameter is
10.3 in (or
Apparently, according to the physics (posted in this forum) the bigger the rotor the more braking power there is. If that is the case, wouldn't a bigger size be preferable?
Where I can find the "official" size of Rotor I should pick?
Also, I am in Canada, meaning, tons of salt on the roads during the winter. Plus a little bit of snow. Shouldn't this body shop be ordering/recommending coated rotors (as well as callipers)?
Is coated rotors always preferable for places that use salt on the roads?
Thank you for your time.