Riding a motorcycle at night in the rain through city streets is a bit of a pain, at least in my experience. Rain on the visor is worse for visibility than the on a car windscreen, making it hard to spot the many cyclists without lights and wearing dark clothing - even the properly lit ones are harder to spot due to the effect on lights of the drops of water on the visor.

Whilst looking out to avoid hitting cyclists a motorcyclist must also keep an eye on larger motor vehicles, of course.