Source: Pipeburn –

For more than a decade we’ve ended the year with our Pipeburn Top Ten Bikes and picking the list is never an easy task, as we try to cull down so many magnificent machines to the final few. And of course, the public’s opinions will all differ wildly, getting a consensus is like trying to draw blood from a stone. So, when we sat down to pick our top ten list of the best engines from the custom bike…
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