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Your new brake pads will take a few miles to seat to the rotors. Easy on them early on, no hard braking for 200 miles or the pads will wear out much faster. light braking with repeated heating and cooling cycles will help seat the pads to the rotor. If the rotors are too thin they would need to be replaced, I am not sure of the specs, but I am sure someone else here will chime in.
How do u know when its time to replace your old rotors....I have brand new break pads on the front and im not getting very good breaking
I still have the stock rotor on the rear at 90,000+ miles and it's fine.
The front rotor, which should see ~75% of your breaking power, warped at 15,000 miles. I replaced it with a HD floating rotor and it's been problem free since.
Harley brake pads are pretty much junk IMO. Replace them with a set of Lyndall Z-Plus pads, and you'll get better breaking, 2-3 times the mileage from the pads, and NO brake dust.
I have a bit over 42k on my bike right now and the front rotor had been warped for at least part of last season. I picked up a used rotor for $10 at Carlisle Bike week during the summer and put it on last week. Had no problem braking, it was just grabbing / releasing and I wanted it to feel smooth again.
I still have the stock rotor on the rear at 90,000+ miles and it's fine.
The front rotor, which should see ~75% of your breaking power, warped at 15,000 miles. I replaced it with a HD floating rotor and it's been problem free since.
Harley brake pads are pretty much junk IMO. Replace them with a set of Lyndall Z-Plus pads, and you'll get better breaking, 2-3 times the mileage from the pads, and NO brake dust.
The answer to your question is that there is a minimum thickness, stamped on the disc, so when the disc gets below that replace it. It is unlikely yours has worn that bad!
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