For what it's worth guys, I always nod. Well no, that's a lie, I always wave, and it's only on very rare occasions I don't get the wave back.
I suppose it's fair to say that at motorway speeds, (or maybe even a tad above !), on a naked bike, and high winds, a nod will be fine, but remember that's across the
Armco !
Bikers do stick together, trust me .......
If you break down in your car, your in trouble,
If you break down on a bike, the first biker to pass will stop, - fact !!