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Greybeard the thing with the glass marbles,is this tried and tested?they,ve got to be lighter to carry around than sparkplugs, right?



This has been proved to work. It's not only for bikes, I know of truck drivers who toss them up and back so they roll along the top of their trailer.

Let's hope there's intelligent life somewhere in space 'cause it's buggar all down here. -- Monte Python