Fog really is a pain ........ especially if you wear specs .......... that`s four surfaces ( inner and outer ) you have to keep clear ....... and main beam or dipped makes bugger all difference ........ in fact main is worse , as you just get the glare reflected directly back at you .
Got hold of some Bob Heath Anti Fog Spray , which seemed to work quite well on a forty mile round trip into Bristol and back yesterday ..... ( dry , and what I regard as being cold ( 3-6 C ) ......... and roads covered with slimey shit which never seems to go away at this time of year ... ) ......
Over the years there seem to have been several attempts at finding a solution .......... I have got a pinlock anti fog shield which I have yet to try .... then there was the similar Fog Shield a few years back ......... washing up liquid , or rubbing the inside of the visor with a peeled potato were also supposed to provide some sort of answer , although my closest contact with anything potato like is usually in chip form , so never got around to trying that .........