Universal sign (it might be American 'universal' but it a good idea to have something universal, so let's go with) that a biker needs help is a helmet placed behind the bike, so if you see one, or you yourself need help - you know what to do.
I saw another thing on Facebook about telling other bikers on the road about the police. Apparently you're ment to tap your head - not so sure about that one
As long as ya not down wind of it ya be ok Refund :-P :-P:-P
I used to stick thumb up at bike by side and if they ok they give thumb up back......or fingers depending what mood they in mwuuaahah and I'm in a daft one....
In response to Izzyhill's biker in distress last november, quite a few times I've had people stop and ask if I'm ok when I've just stopped at the side of the road for rest or pee, car drivers as well as bikers, perhaps being an old geezer on an old bike helps ? The last time I got help was in Longnor this year, I'd stopped at the bottom of the hill and the engine died, no electrics, got the battery off and it was dead flat, Presumably the bike had been running on the alternator since the battery had packed up, and cut out when the revs dropped. While fiddling about a chap asks if I'm ok, I asks him if he knew where I might get another battery, he knew of a bike shop in Leek and offered to take me there, about 8 miles and wouldn't take anything in return.