Why is my rotor getting HOT?
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Tourer
Joined: Aug 2008
Posts: 374
Likes: 5
Why is my rotor getting HOT?
I changed my stock rotor to a DNA and the the pads the Custom Chrome organic and the rotor is hot as hell after a ride. So I thought it was dragging and took it for a ride without using the rear brake at all and it was fairly cool.
I had some trouble with the install at first because the rotor was not centered in the caliper but I corrected it with slightly bigger spacer between the rotor and the caliper.
What are some causes of a rotor getting very hot?
I had some trouble with the install at first because the rotor was not centered in the caliper but I corrected it with slightly bigger spacer between the rotor and the caliper.
What are some causes of a rotor getting very hot?
Ultimate HDF Member
Joined: Feb 2008
Posts: 5,615
Likes: 9
From: Escondido, CA
Friction. Rub your hands together really fast and see if they get hot. Now use your hands to stop your harley and see how hot they get. On second thought, don't do that. It's pretty normal for the disc to get too hot to touch after a ride.
Friction = heat, and friction is how brakes work. If you've eliminated drag as a possibility (and it sounds like you have), then my guess would be that your new pads have a higher coefficient of friction than whatever you had on there before. As long as you're not seeing any heat discoloration and the brakes aren't fading on you, I'd say you're good to go.
Tourer
Joined: Sep 2007
Posts: 469
Likes: 0
From: Las Vegas, NV
Friction = heat, and friction is how brakes work. If you've eliminated drag as a possibility (and it sounds like you have), then my guess would be that your new pads have a higher coefficient of friction than whatever you had on there before. As long as you're not seeing any heat discoloration and the brakes aren't fading on you, I'd say you're good to go.
Thread Starter
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Tourer
Joined: Aug 2008
Posts: 374
Likes: 5
The one in question gets much hotter then the front. Also it was discolored from the original test ride when it was rubbing so its hard to tell.
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Grand HDF Member
Joined: Feb 2010
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From: Southwest VA
Remember, the rear wheel brake rotor doesn't see the cool air like the front. The front brakes will always be a lot cooler then the rear after a ride. My bike has done the same thing yours is since it was new. Its normal unless the rotor is turning blue or dark brown and that will happen some over time.
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