Perhaps that is the answer. Sellers could have a flyer with Flecc's explanation. It should be obvious that within certain broad limits,a 250 engine and 360w battery are not going to vary that much. If a particular manufacturer claims more, he should be challenged to explain why he gets more out of the similar set up.
Engines of novel design that do offer greater efficiency can then explain the difference.
Part of the problem is the controller. For a bike sold to be used in Holland, the controller can be set to never deliver more than 250 watts. For a bike to be used in Wales, then a different setting, and therefore less mileage is needed.
Perhaps sellers could offer their bikes in 'Dutch' tuning or 'English' or 'Welsh' tuning to explain the differences obtained in varying terrain.
Engines of novel design that do offer greater efficiency can then explain the difference.
Part of the problem is the controller. For a bike sold to be used in Holland, the controller can be set to never deliver more than 250 watts. For a bike to be used in Wales, then a different setting, and therefore less mileage is needed.
Perhaps sellers could offer their bikes in 'Dutch' tuning or 'English' or 'Welsh' tuning to explain the differences obtained in varying terrain.