I have had a scan at the road bible and as usual the good old Highway Code is a minefield of contradiction. This thing was definitely written by a politician, you can not get a straight answer out of it. Did you know it is NOT ILLEGAL to drive at night WITHOUT your lights on in a built up area (restricted road is the term). That seems a bit ludicrous to me and the very next sentence states,”use headlights when visibility is seriously reduced”. I thought darkness did this. Anyway it seems 100m is the general guide line as to lights on or off. The next rule I found gives guidance saying use dip beam at night in built up areas to be seen. I give up.

So disadvantages.

It drains your battery.
It wears your bulbs out quicker.
It dazzles people.
It increases your mpg.
It bakes the dead flies and makes the buggers even harder to get off.
It makes you the same as a Volvo driver ‘cos they have their lights on as well.
It makes you look bigger (and more scary you intimidating biker). I nearly put this in advantages but realised the anti-bike brigade use this sort of thing against us.
It makes it harder to judge your approach speed. Very important.
It can give a false signal. Even veryer important (don’t think that’s a real word but you know what I mean.)

So most of these disadvantages seem fairly innocuous, except the last two.
Judging approach speed is quite an important skill and when a headlight is coming towards you the dazzle effect does something to your brain. Rabbits suffer from it too.
So that can be one explanation as to why we are being constantly pulled out on BY BLINDED CAR DRIVERS who cannot judge the light approaching them.
The final disadvantage is the scariest and this has happened to me and numerous friends I know. Scenario is lights on, bumpy road, stationery car waiting to turn right into a side road across your path or pull out across your path. You are sure they have seen you so continue at normal speed when they suddenly turn directly in front of you. Pap time, emergency brake, swerve, crash whatever!
While the priest is administering your last rights the said car driver runs up ranting and raving and tells you it was your own fault because you flashed him. It has never gone quite that far with me yet or I would not be writing this but I am always very wary of my lights being able to give this false signal of a flash, especially on bumpy road surfaces.
At least the road bible is clear on this one and states you should never assume a flash of a headlight means you are clear to go, so the law may reward you posthumously.
The problem is that it is universally accepted that the flash of a headlight means I am giving way to you

I don’t have the answer and it is purely a matter of choice and I still believe that single advantage of being easier to see in general far outweighs all the others. I ride with them on.

Oh, I almost forgot, tip to remove the baked on flies. Use toilet roll or tissue paper, lay it on your headlight and fairing and liberally soak with water. Leave 10 mins then wipe off and all the bakelite flies come with it.

This info is given to you by 2wheelskool, a riding school dedicated to improving our LOT! www.2wheelskool.co.uk pay us a visit.