How warm should the rear disc run under non-use?

Information and questions on GL1000 Goldwings (1975-1979)
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Joined: Tue Mar 09, 2010 12:53 pm
Location: La Crosse, WI
Motorcycle: 1977 GL1000

How warm should the rear disc run under non-use?

Post by sfruechte » Tue Jul 01, 2014 10:07 am

Has anybody noticed how warm their rear disc on a GL1000 runs? My bike rolls easy, so I don't think there is much drag, but the rear disc runs considerably warmer than the front brakes which is understandable given its out of the air flow and close to the very warm rear drive. I wondering how warm it runs if you stop with the front brake and how hot is too hot, of course it's hot if you use it.

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Re: How warm should the rear disc run under non-use?

Post by WingAdmin » Tue Jul 01, 2014 10:12 am

If you have no appreciable drag, then I wouldn't worry that much about it. I have TPMS sensors on my GL1500 that also read wheel temperatures. With the rear wheel tucked up underneath out of the airflow, and surrounded by hot exhausts it gets quite warm. The front wheel, out in the wind, has a temperature normally reading the same as the ambient air temperature. The rear wheel temperature however normally reads between 20 and 30 degrees F hotter.

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