Originally Posted by ItsJustMe
So how well would this fluid-based transmission shift at -20*F? Not very damn well, I bet.
I don't think I would ride a bike at all at subzero temperatures. Staying upright on a surface of snow and ice would be the main problem, not efficiency problems of the transmission. But of course it would be nice to know something about the performance in winterly conditions.
Originally Posted by ItsJustMe
There are some automatic transmission bikes around and I don't like them. Not knowing when the bike is going to shift can do bad things to your legs and knees. CVT probably not so much but I'll believe high efficiency and good cold shifting when I see it.
The NuVinci is not an automatic transmission. You do the shifting by hand. Very smooth without any stress to legs and knees at all. A conventional hub gives more stress...