The NANROBOT D6+ speed comfort and reliabilty in an awesome package.  

The front and rear C- type spring hydraulic suspension allow the D6+ to cruise on through the rough stuff.  Whilst having 18cm ground clearance and 10-inch pneumatic off-road tires keep the ride comfortable. 

Key features inlcude.

Range: 30-40 MILES / 50·60 KM
Dual Drive: 1000W x 2
Max Speed: 40 MPH/ 65 KMH
Lithium Battery: 52V 26A
Net weight: 77 lbs / 35Kg
Wheel Diameter: 10 inch
Load capacity. MAX 330lbs / 150kg
Lithium battery: 52V 26AH
Charging: 2 ports (comes with 1 charger)
Charging time: 5h with 2 chargers, 10h with 1

If you want a fast long range scooter, that has well thought out safety features this Nanrobot D6+ is a great choice.