Spoiler alert! Those watt and torque ratings for e-bike motors that are bandied about all over the place (and I am as guilty as the next e-bike journalist here) are not as simple as they seem. Whilst UK and EU law says 'the maximum continuous rated power output of the motor shall not exceed 250 watts' you will often see peak power ratings at several times this on fully legal motors. This is naturally confusing - torque ratings are also widely quoted to further muddy the technical waters. Here...
