Rotor Measurement
04-23-13, 10:06 PM
#1
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Rotor Measurement
I measured my front rotors today at 29.4mm, they have 55,000 miles on them. Most of my driving is highway driving. My question is whats the longest you guys have gone on a set of rotors?
Am I measuring wrong? Do I need to drive the car harder
Am I measuring wrong? Do I need to drive the car harder
04-23-13, 11:26 PM
#2
Lexus Champion
My original rotors went on for 37,000mi. Second set went on for about 45,000mi because i drove more highway miles. I'm on my 3rd set of rotors now...went cheap and went to Centric Parts...so far so good.
04-24-13, 02:41 AM
#3
Tolerance is down to 28mm so your good. I just measured mine I am at 80,000 miles and mine are at 28.5mm. Some guys on here run them down to 27.9ish. Don't think you need to drive harder but if you do try finding a track that will kill them pretty quick. As far as measuring wrong just make sure you get measurements at differant spots on the rotor and make sure it's not in a hole or you may have a heart attack when it reads 25-26mm.
Last edited by fasttexasz; 04-24-13 at 02:43 AM. Reason: Addition.
04-24-13, 02:54 AM
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Hi Guys
The Lexus dealership here in Oz wants to change the rotors every time they do a pad change.
Is this right?
First change for the front 20,000 km, second time looks about 48,000 km. Rear,, first time will be around 55,000 km.
I just want to see want the consensus is here, in Oz $AUS2600.00 for the front, rotors and pads, $AUS2100.00 for the rear, seems expensive.
Thanks for any feedback.
The Lexus dealership here in Oz wants to change the rotors every time they do a pad change.
Is this right?
First change for the front 20,000 km, second time looks about 48,000 km. Rear,, first time will be around 55,000 km.
I just want to see want the consensus is here, in Oz $AUS2600.00 for the front, rotors and pads, $AUS2100.00 for the rear, seems expensive.
Thanks for any feedback.
04-24-13, 04:30 AM
#5
Lexus Test Driver
Hi Guys
The Lexus dealership here in Oz wants to change the rotors every time they do a pad change.
Is this right?
First change for the front 20,000 km, second time looks about 48,000 km. Rear,, first time will be around 55,000 km.
I just want to see want the consensus is here, in Oz $AUS2600.00 for the front, rotors and pads, $AUS2100.00 for the rear, seems expensive.
Thanks for any feedback.
The Lexus dealership here in Oz wants to change the rotors every time they do a pad change.
Is this right?
First change for the front 20,000 km, second time looks about 48,000 km. Rear,, first time will be around 55,000 km.
I just want to see want the consensus is here, in Oz $AUS2600.00 for the front, rotors and pads, $AUS2100.00 for the rear, seems expensive.
Thanks for any feedback.
04-24-13, 07:31 AM
#7
This post says it better than I could:
Reusing your old rotors is OK as long as they're not below minimum thickness, are not grooved or cracked and are still true.
Lou
They are 30mm brand new and 28mm at min thickness. Anyone doubts, I can post pics of the rotor's stamp indicating the min thickness and an extract from the FSM showing the "standard" thickness to be 30mm.
Resurfacing is almost always a bad idea. Rotors are not designed to look good, they're designed to stop the car. The only way they'll look better and work correctly is if you replace the discs. Turning them on a brake lathe is a disaster. If you can have them resurfaced with a Blanchard grinder, they'll be OK.
Anyone telling you they must be resurfaced doesn't know much about brakes.
Resurfacing is almost always a bad idea. Rotors are not designed to look good, they're designed to stop the car. The only way they'll look better and work correctly is if you replace the discs. Turning them on a brake lathe is a disaster. If you can have them resurfaced with a Blanchard grinder, they'll be OK.
Anyone telling you they must be resurfaced doesn't know much about brakes.
Lou
Last edited by flowrider; 04-24-13 at 10:57 AM.
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04-24-13, 09:04 AM
#8
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04-24-13, 06:25 PM
#9
Pit Crew
Centric makes great rotors. The IS-F rotors use a 128 suffix, so they are likely to be a high carbon iron, and very much up to the task.
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