There is definitely a cut off point at which the heat from both the right side clutch housing area and the oil cooler becomes an issue for me. Some where in the mid 90 degrees. Anything above 100 is freakin' ballistic hot. And on long rides painfully so.
I have no idea how one bike could be so much hotter than the others, or how only a few of us seem to notice this cause they all have to run pretty hot in the heat. Maybe some folks just don't ride in heat. Maybe they have bikes that run cooler? Different thermostat settings? Dunno.
Grif, I wear these : Vendramini Marathon
By far the best and most comfortable boot I've ever worn. Most of the time I also wear a pair of Olympia Air Glide pants, and maybe that makes a difference. Actually I'm pretty sure it would as it allows for the hot air to flow right to the boot. I also have a heavier pair of pants that I never notice the heat in, however I also never wear them in the heat.
Now if I have to ride in any heat I end up un zippering my pant leg and leaving the the boot a bit loose. That and riding with my foot a couple inches out helps. But the best solution for me has been planning. If it's going to be in the 100's where I'm going I just bag it in by 2pm and then get a before sunrise start.
And I totally get the "remove GPS" from behind the oil cooler thing. I'm very glad I have mine mounted on the e-shelf cause I have no doubt that I'd be frying it otherwise.
I had one incident last year riding through NV where it was in the 110's or so, no way I could keep a jacket on, by the end of the after noon I literally had minor burns, like real bad sun burn, from the oil cooler heat on the inside of my fore arms. (No it wasn't sun burn....spf 50 everywhere and no burn any where else.)
The good thing is we're having a pretty cool summer up here, the bad.....I don't have too much time to ride during the busy season for me.
Come Oct though I be a ridin' fool!