This is a widely popular electric bike and the new Epik Sport Edition even got some upgrades like the 350-watt geared hub motor, a 7-speed Shimano drivetrain and a basic front suspension fork. What’s great about the Epik is that it offers 3 levels of pedal assist and the thumb throttle control, so you can switch between assist mode, throttle only or no assist. The top speed of the bike is 20mph.
Unfortunately, not even this great bike is perfect. The otherwise great performance is somewhat let down by the weak disc brakes. Stopping time could be improved with an upgrade. The relatively high weight of 59 lbs is also a disadvantage, and lots of the weight is on the rear wheel, making the GB5 500 prone to accidental wheelies if you accelerate too hard in throttle mode.
In the 1890s, electric bicycles were documented within various U.S. patents. For example, on 31 December 1895, Ogden Bolton Jr. was granted U.S. Patent 552,271 for a battery-powered bicycle with "6-pole brush-and-commutator direct current (DC) hub motor mounted in the rear wheel". There were no gears and the motor could draw up to 100 amperes (A) from a 10-volt battery.[5]

Brussels-based Ahooga picked up a prestigious Red Dot design award earlier in 2018 for this hybrid bike, which pairs design simplicity with a little added oomph from a 250W rear hub electric motor. Weighing in at 13kg including battery, it’s light enough ride as normal but with the electrical assistance as an luxury extra. The Style+ model comes with leather anatomical Saddle, Wolfy pedals, puncture-resistant Schwalbe Marathon Plus tyres and a pair of rather natty roll-open mudguards. But perhaps the biggest draw with this handsome model is its colour options – there are 215 to choose from, in matt or glossy finish.

Cargo bikes and city bikes are common in the e-bike space, but until recently we haven’t seen that many performance road bikes. The Giant Road E+1 is a pedal-assist performance road bike that’s made for more than just commuting; the powerful motor can rank you up to 28mph very quickly on the highest setting so you can rip the flats, join your local group ride, or blast through the mountains with far less effort than a traditional road bike. Don't expect it to feel like a 16lb race bike when you lean it into high-speed turns, but the endurance-oriented geometry allows for an aggressive position on the bike and keeps the it nimble and agile at high speed.

Folding bikes are often uncomfortable for taller riders. Not so with the 3OND. The seat and stem can extend far out of the bike, accommodating all but the tallest people. As always, be aware of extending the stem too far. You do not want to stress the cables when turning. Adding to the comfort is a basic suspension fork. Although you cannot adjust the rebound or preload, it does have a lockout option.
Another system found on folders, such as Montague Bikes, utilizes the seat tube as a pivot point for the frame to fold. This system uses a tube within a tube design to give the bike more torsional stiffness. It allows the user to fold the bike without "breaking" any vital tubes down, thus preserving the structural integrity of the diamond frame. This system is operated by a single quick release found along the top tube of the bike.
It makes a lot of sense to put these two technologies together. You can get all the advantages of an electric bike in an easy to transport package. An electric folding bike really is the ultimate solution for commuting. You can let the battery do the hard work and not worry about getting sweaty as you scoot across town to a meeting, or you can arrive at the office faster than with just leg power alone. If part of your journey necessitates taking a train or a bus, all you have to do is fold up the bike and hop on.
China's experience, as the leading e-bike world market, has raised concerns about road traffic safety and several cities have considered banning them from bicycle lanes.[2] As the number of e-bikes increased and more powerful motors are used, capable of reaching up to 30 miles per hour (48 km/h), the number of traffic accidents have risen significantly in China. E-bike riders are more likely than a car driver to be killed or injured in a collision, and because e-bikers use conventional bicycle lanes they mix with slower-moving bicycles and pedestrians, increasing the risk of traffic collisions.[2]
Batteries are the core part of a folding electric bike and if chosen poorly can turn your expensive e-bike into a waste. There are many batteries with different properties. But the most recommended battery for your folding e-bike is the lithium manganese battery. They are the best and are used even more than the lithium-ion ones. They generate high power and do not require a lot of maintenance.
China has experienced an explosive growth of sales of non-assisted e-bikes including scooter type, with annual sales jumping from 56,000 units in 1998 to over 21 million in 2008,[72] and reaching an estimated fleet of 120 million e-bikes in early 2010.[2][73] This boom was triggered by Chinese local governments' efforts to restrict motorcycles in city centers to avoid traffic disruption and accidents. By late 2009 motorcycles are banned or restricted in over ninety major Chinese cities.[72] Users began replacing traditional bicycles and motorcycles and e-bike became an alternative to commuting by car.[2] Nevertheless, road safety concerns continue as around 2,500 e-bike related deaths were registered in 2007.[73] By late 2009 ten cities had also banned or imposed restrictions on e-bikes on the same grounds as motorcycles. Among these cities were Guangzhou, Shenzhen, Changsha, Foshan, Changzhou, and Dongguang.[72][73]
Not only that, the foldability and light weight of these bikes can help you prevent theft – which is a huge problem in most cities. Instead of locking your bike up outside and leaving enterprising thieves to consider the best way of stealing it, you can simply fold it up and take it with you – to the office, grocery store, wherever you may be. No fretting about whether or not you bike will be there when you get back from your errands.
This may not be the prettiest, the most compact and certainly not the lightest folding bike out there, but the Volt Metro makes perfect sense once you’re in the saddle. Its hefty 21.7-kilogram (including battery) bulk takes it out of the everyday commuting equation – this is more for packing in the car and cruising around. And riding it is a treat, thanks to a rear-hubbed 250W SpinTech motor that gives electrical assistance up to 25kph with a claimed battery life of 96km. Suntour forks, Velo Sport comfort saddle, wide Kenda tyres and sit-up-and-beg geometry further enhance the riding experience that’s more Sunday driver than urban bus-dodger. If you’re looking to turn heads or ride at pace (without electricity) then look elsewhere, but this Volvo-like bike/wagon is not without its charms.
With our “most people” rider in mind, we started by zeroing in on the brands and models that had good reputations and good reviews from other outlets, such as BikeRadar, Folding Bike Guy, and Momentum Mag. I discussed at length the merits of a variety of options with experts Lam, Cuomo, and Berk, as well as the specs to use as limiting factors to narrow the field. We settled on bikes with:

Pedelecs are much like conventional bicycles in use and function — the electric motor only provides assistance, for example, when the rider is climbing or struggling against a headwind. Pedelecs are therefore especially useful for people in hilly areas where riding a bike would prove too strenuous for many to consider taking up cycling as a daily means of transport. They are also useful for riders who more generally need some assistance, e.g. for people with heart, leg muscle or knee joint issues.
In a parallel hybrid motorized bicycle, such as the aforementioned 1897 invention by Hosea W. Libbey, human and motor inputs are mechanically coupled either in the bottom bracket, the rear wheel, or the front wheel, whereas in a (mechanical) series hybrid cycle, the human and motor inputs are coupled through differential gearing. In an (electronic) series hybrid cycle, human power is converted into electricity and is fed directly into the motor and mostly additional electricity is supplied from a battery.