Originally Posted by dogtired
A good old fashioned poor arsed hoon with insufficient money to buy a decent bike, so he and his mates would cobble together any old crap they could get their hands on and ride the piss out of it.
Along the right lines. Back in the '50s the youngsters in the UK didn't have access to cars in the same way as the US kids so were limited to bikes which were cheaper.
They used to hang out at transport cafes and modified their bikes to get up towards the magic ton.