Originally Posted by bullfrogeh
The OP asked for a temp. I'd say - "If the standing 'outdoor' temp is plus 20 degrees C., then the tire and hub temps should be 20 degrees C." Anything otherwise, should be checked out, or rationalized. And, if it's anywhere near Zero Celsius - start shoveling the path to the barn.
Technically, the OP did ask what the normal temperature is. But does it matter if the normal temperature is 90 degrees, 110, or 120. The bottom line is that if you stop somewhere and haven't been applying the brakes
excessively such as for a long downgrade, you should be able to grasp the hub and not burn your hand. In other words, if you can keep your bare hand on them, they are not too hot, regardless of the actual temperature.
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