Dual Powered bikes have on road and off road modes. Off road modes give a higher power output and greater top speed. They're heavier than standard 250w motor bikes but you do get the benefit of extra power and higher top speed.
In order to gain acces to the high power modes we will need to send you instructions on how to do this. Before we are allowed to send you these instructions you will need to sign a de-restriction form and return it to us - the form is listed against each of the high power bikes under the "Download" section.