I've never really thought of it. I figure the Integras use 14" wheels because of the front brakes.

Does anyone know if rear discs will fit under a 13" wheel?

TIA!

 

from what I have read, yes they will ft fine... I think the outer diameter of the disc itself not including any mud guards or calipers is 9" and everything else isn't much bigger. I will be using 13s again by the time I get rear discs on lol....

 

i used 13" factory accessory wheels on my 90 Si (rear disc). totally fine.

 

Do you know if the 13" optional (accessory) wheels will clear the front EX brakes?

They seem to have pretty good clearance on the inside.

 

i never bothered to try.

 

Logic tells me they won't fit, but i sure hope they will! i just picked up a set today.

 

well let us know...

 

are the ex brakes bigger than dx? different part numbers for pads and rotors?

 

you talking about front brakes? if so yes
dx= 9.25" rotor
ex= 10.5" rotor

calipers are bigger
pads are bigger

13" wheels wont clear ex front calipers.