Recently I order new Nakamoto rotors for my car. The fronts fit perfectly, the rears I have an issue. The rear rotor diameter size is supposed to be 12.1 in(307mm by 16mm).(313387DSZ) This size is also the same as stock. The problem is the E-Brake inner diameter . It is so wide (190mm) that even at full adjust, the shoes barely even make contact with drum with the hand brake fully engaged. My opinion Nakamoto has my car mis listed in their data base. I going to return them. Does anyone have the correct Part number? Also what is the correct inner diameter so I may write Nakamoto with all the size measurements. I don't have the old rotors to measure it.The other alternative is to find another brand of slotted and drilled rotors that fit.
The car does have the sport tune suspension package. The brakes are not Brembo or any other known writting. All information is welcomed. Thank You in advance.

 

Stock is 307 overall, 183mm for the inner drum (parking) brake.

Brembo rears are 321 overall, 187 inner

If the overall diameter is correct then you might have a remanufactured set that has had the inner turned beyond factory spec (not sure if that spec is even stamped on the rotor though)

 

Finally Power Stop came to the rescue. The Correct Part Number is JBR1144XPR. It fits perfectly. The rear rotor measurements are 308mm by 16mm with inner E-Brake diameter of about 173mm and the outer diameter of 184mm. Power Stop actually measured the rotor prior to me ordering from one of their distributors. Nakamoto would just quote you what someone loaded in their data base and do nothing else. Any ways I now have an E-Brake once again.

 

Ahhh that's good to know those numbers I had are OUTER diameter measurements, thanks.

 

Thanks Avion!