have a go on a ural or dneiper bike then, russian metric is different to the rest of the worlds metric, standard metric sizing but different thread forms and pitches.

metric was first adopted by france after the revolution, who decided a metre was going to be 1/10,000,000 of the distance from paris to the north pole, ie 10,000km. shame they were 60km out. french, eh?

Working in the engineering in the UK we quite often mix English and metric in the same sentence, for example giving the nominal size in metric and the tolerance in inches. I have used a similar mix quoting miles per litre, or was that kilometers per gallon, I forget. What do you expect in a country where they sell draught beer in pints, 20 fluid onces not American 16 fluid onces, and bottled beer in 500ml.

If you want another bastion of English measurement go to Burma where distance is still in miles and furlongs even on their band new road to their band new capital city, quaint.

my varadero's fuel computer does miles/litre, so even the japs do it!

Coming from London, we all know what a 4x2 is, but a 47x100 does not have the same ring to it!!!

most cars/vans are 4x2, 100x47 is a centipede with 53 broken legs?