I stay in a country that uses the metric system, which I also grew up with. My BSA forced me to study the imperial system. My one manual, a Clymer, was printed in the USA. It refers to units like pints. But there is a noticeable difference between the US and the UK pint (and also other units). My question: when a BSA manual refers to a volume unit, do I follow the UK or the USA? Is the reference to volume country of publication orientated, or country of bike manufacturing orientated?