I suspect this is a common problem, but I can't find anything on the forums that covers it. After an hour or so of riding, my fingers begin to go numb, sometimes on one hand, sometimes the other, sometimes both at the same time. It generally begins with the little finger, spreading gradually to the rest, including the thumb. I don't think it is due to pressure on the hands, as experimentation has shown that the numb feeing only goes if I rotate the whole arm at the shoulder; flexing the fingers and wrist makes little difference. I get this on all types of bikes, with and without gloves, and even sometimes off the bike if I sit still for too long, so I don't think it's something that can be improved by adjusting anything on the bike. I've always thought it's a discomfort I'll just have to put up with, but does anyone know of there's a medical solution?