Today while I was out I checked some temps with an infrared thermometer right after I stopped.
Air temps were in the 20's. I have a stock set up with the '99 caps, so I can't get that close to the hubs.
Rotors-
Caliper-
Lug nut-
I got the infrared from ThermoWorks for only $20. They now have a similar unit for a nice price-
http://www.thermoworks.com/products/ir/ir_mini.html
I highly recommend getting one of these neat little gadgets.
Mark Griffin