I'm having trouble finding the actual size of the Rear Stock Rotors on a 2011 IS-250 F-Sport. Does anyone know the size or could direct me to a reference on the actual size? Thanks for any info.

 

I can look it up later, but it should be the same as the 2006-2011 IS350.

Jeff

 

According to Lexus.com...

Rotor diameters are...
IS250 Front: 11.6 Rear: 11.4
IS350 Front: 13.1 Rear: 12.2

 

Looks like Jeff wins. I used eBay to get a VIN number for a 2011 IS350 and using my VIN and the IS350 VIN, the Lexus part numbers for a 2011 IS250 F-Sport and a stock 2011 IS350 are the same.

Love this forum.

Thanks Jeff.

 

2011 IS250's with Sport Package have the larger brakes from the IS350, even though they still have the smaller front brakes. Earlier IS250's are not like this.

Jeff

 

Lexus.com shows the same brakes on the both the IS250 and IS250 FSport....

http://www.lexus.com/performance/?si...pecifications/

 

Lexus.com isn't always 100% accurate. While I don't see it listed anywhere in the specifications, the parts catalog lists the rear rotors on 2011 Sport-Suspension equipped IS250's as being the same as the IS350.

I haven't personally looked at one, but it would be easy enough to tell, as the smaller brakes are solid disks while the larger ones are ventilated. Take a quick look at the rotor and you'd be able to tell what is on the car.

Jeff