Aero-service EV4, 4-wheel electric bike from Poland

Posted by Charbax – June 8, 2016

EV4 is designed by Aero-service in Poland, using low weight components highly durable aeronautical aluminum alloy, constructed like an airplane. The main frame of the vehicle is riveted just like in the case of airplanes to make it more durable and lightweight. The independent suspension uses an adaptive suspension system to adjust to the shape of the terrain at any given moment. Regardless of the surface type, terrain, angle of inclination of roads and travel, the EV4’s wheels uniformly and evenly touch the ground. Thanks to the electric drive as well as gear belts the noise emission is close to zero, which has a positive effect on the driving comfort. The vehicle’s low weight and the use of modern and efficient lithium ion batteries achieve a 100km driving range. Shocks are absorbed by two bicycle shock absorbers with adjustable hardness and damping. Hydraulic disc brakes on 4 wheels allow for very short braking distances, making the EV4 very safe. The EV4’s four wheels result in stability superior to that of single-track vehicles.

Aero-service's official video:

Technical specifications:
Drive: DC motors 800W/1000W
Driver: DC 1600 W/2100W
Gear: toothed belt
Li-ion battery: 36V 52AH/48V40AH
Brakes: hydraulic discs on 4 wheels
Width: 60cm
Length: 150cm
Height: 110cm
Mechanical tilting system
Cushioning system - 2 bicycle shock absorbers
Weight: 41 kg without battery
53 kg with battery
Range: 90-130km
Speed: max: 40 km / h
Riveted aluminum frame
Welded aluminum wishbones
Height-adjustable seat