trekking rad runner chainless electric bicycle

As we all know, electric bicycles have become very popular in recent years. For one thing, 
they are more efficient than pedal bicycles, while the price is only a little bit higher. For another 
thing, compared to electric scooters and motorcycles, the regulations for bicycles are less restrictive, 
so it is more convenient to use electric bicycles for short trips.
1.This electric bicycle is the model of a very classic city bike. It looks almost the same as a typical 
city bike, with a simple design, compact and lightweight, and with many colors to choose from, 
including classic black, white, and red, you can choose any one you prefer.
2.We supply 48V 20Ah lithium batterry for this model. Lithium batteries last almost 3 times longer than 
lead-acid batteries and are cleaner and more environment-friendly. So we provide customers with lithium 
batteries to make the sense of use better. The battery can be unloaded and charged separately, which is 
very convenient.
3.As a result, the range will be close to 50 km.50km of a bicycle can meet the needs of most short-distance 
daily trips, such as commuting to work or school, supermarket shopping, going out for an appointment and so on.
4.We apply two 750w brushless motors, which is efficient and noiseless, and a six-tube controller to meet 
multiple functions. And the max speed can be 32km/h. The speed of a typical city bike is 15km/h, and 
this electric bicycle is almost twice as fast and much easier to ride. Its climbing degree is 7°. General 
going uphill and downhill and overpasses are very easy for it.
5.It just weighs 45kg, which is light enough that a kid or a woman can easily move it. But it can carry 
a person up to 120KG. The size of tires is 4.0*20'', a size of common city tire. 
6.The front brake is disc brake. disc brake has two pieces of rubber that clamp the front tires hard to force 
the scooter to stop. And the rear brake is disc brake. Front and rear brakes work together to help 
users control speed instantly and improve safety.
7.There are three riding modes: pedal mode, electric mode, and pedal-electric collaboration mode. 
If you choose the pedal-electric collaboration mode, with the pedal assistant function, you can save half 

of the strength during the process of riding.