I've read Tom Austin's article in the Iron Butt magazine concerning hot weather LD riding...
http://www.ironbutt.com/ibmagazine/ironbutt_1002_62-66_Hot.pdf
I'm doing a BBG/50CC which will take me across the I-10/I-8 corridor later this week. Its forecast to be HOT, to the tune of ~115° or so.
I...