I've been fortunate in my new location, because despite all the HUGE trees the leaves aren't as thick on the highway as I'd expected. The wind and traffic do a good job of keeping the roads clean, although I suspect that at night the road crews are sneaking into my backyard and dumping truckloads of excess maple leaves all over the place.
Anyway, slow and steady riding is the key at this time of year. I'll usually ride (the Harley) right up to the first snowfall, but this year I'm making a pre-emptive strike and putting it into storage... tomorrow.
Now, the Ural is a totally different story. I love blasting through the leaves with it and will keep riding until the temps drop below -15C.