[faffi]

I wrote 90, but sometimes 80 can be too hot for me to enjoy riding. One reason is that I will never ride without my full set of leathers, the other reason is that bikes with fairing bring the experienced temp up by at least 10 degrees, and finally, sun strength and humidity play a massive role in comfort. So for me, 90 would require ideal conditions; not so bright a sun, low humidity and no fairing/wind protection together with vented leathers.

 

[faffi]

i think we all agree 75f is human happiness.

Personally, I prefer around 65 on a sunny day, and about 70 if overcast. Those temps are OK both riding, as well as stopped for a while without having to remove my gear.

 

[faffi]

anything above 98.6 is starting to cook you. I can tell a big difference between 97 and 99.

Above 98.6, and the higher you get above, you will actually be cooler the more layer of clothes you put on. Below 98.6, you will be warmer than the surrounding air, so the air will try and steal heat from you. This will cool you. Above that temp, you are cooler than the air, and the air will try to cool itself from you. This will make you warmer. Very, very simplistically explained. If you isolate yourself from the air around you with many layers of clothes, it will be easier for your body to retain its desired temperature. The effect is very slim around 98.6F, either way, but the further you get below or above, the more effective it will be to put on insulation.