Please note that the current Forza can be derestricted. There were a few models in the last couple of years that could not be derestricted on the controller but even these can still be derestricted by changing the motor wheel.
The current Forza has Marathon plus tires as standard.
We do not recommend derestricting with the 10Ah battery as the current draw can be quite high. For those wanting a deresricted model we would recommend the 14Ah battery or even better parallel battery wiring giving 24 or 38Ah. This will greatly add to the battery life.
Andy
OnBike