Originally Posted By: ksJoe
Pardon my ignorance, but why are so many of you replacing rotors?
I've never replaced a rotor. I've not even had one machined. My old civic (sold at 248k) still had original rotors, never machined. When I replaced the pads, I'd look them over and they were still smooth, and not worn thin. So I'd just put new pads on them.
Easy! Because I'm in the Sports Car Club of America and drive my cars/trucks to their potential. I replace rotors every 30k or so and they are toast from hard braking.
We have little to no traffic here and many fun twisty roads.
Generally speaking, I have found that if you use the brakes a lot, cheap rotors don't work because of quick warpage or incompatability with the pads. Mid-priced good brands or higher price seem to easily out last the cheap rotors at least 2:1.
I have had great luck with Brembos (Made in Italy) for bite and warp resistance. There are better rotors out there including Brembo's performance lines for high performance, but there regular line seems to work great for regular cars driven hard.
With all the salt here, some cheap rotors simply fail from rust, not thickness.
I have found like with tools, you can a pay little now and repeatedly, or pay more and have far less hassles.