I typically ride until the temps are below 35 F at the time I would start my ride. Too much chance of black ice, below that...... I might ride even then, if the roads are clear and dry....
Oh yeah, heated gear changes everything. Buddy of mine was big into adventure riding and had heated all the things. Too much $$$ for this guy and I don't street ride anymore anyway.I was limited to ~40F, until I got the heated gloves...... I claim ice as the issue below 35..... It's also losing warmth to my feet and chest.
I used to ride for Kearny Mesa, to Escondido all year in the late 80's.... Swing shift. Riding home in November after 11pm demonstrated how cold air finds the lowest point, every time I rode down into an arroyo and the ambient dropped from 40 to 32 in a few seconds. All that cold high desert air flowing out to the ocean made for some bitter temps.I bought a Goldwing to stay warm. It is for commuting to work. Nice big fairing, heated grips and a comfy seat. The winters only get down to 40 ish degrees but who wants to suffer. Not this guy. The bike weighs 850lbs and it is a beast. Or should I say PIG.