Vexxing Velocette

When I left home this morning,
My bike was quite complete,
Now somewhere north of Woodstock,
There's a bolt upon the street.

It wound out of my gearbox,
Dropped to the road below,
And like the Gulf of Mexico,
The oil did start to flow.

It didn't really notice,
It didn't really show,
But sure enough the bolt was gone,
And left behind a hole.

So I will now replace it,
With a 60 year old bolt,
But first I have to find one,
And trust me that's no joke!