The latest models are mostly electric and adopt 1:1 pedal assist systems. Speed sensors are also common. Easy-to-carry bikes with aluminum and steel frames remain popular.

36V 10Ah Li-ion battery

Hunan Sounddon New Energy Co. Ltd - E-Vehicle Dept
Hunan Sounddon’s SD-Ares model is powered by a 36V 10Ah Li-ion battery that is good for 500 cycles. The folding electric bike can be fully charged in six to seven hours. Charging voltage is 100 to 240VAC. The model is fitted with a 36V 250W high-speed brushless geared motor, LCD meter and speed sensor. It uses a 1:1 speed-intelligent assisting system and a brushless controller. The bicycle can hit 25kph and reach 60km. It measures 1,538x54x1,020mm. The frame and suspension fork are made of 6061 aluminum alloy. The model adopts a Shimano 7-speed shift derailleur, Shimano 7-speed and Shimano 21-speed fixed position, and flywheel gears. It incorporates an aluminium alloy front V-brake, a rear brake with lock, and 20x1.75in Kenda tires.

Suits ladies

Hunan Sounddon New Energy Co. Ltd - E-Vehicle Dept
The SD-Liberty model from Hunan Sounddon features a 20x350mm shiny magnesium alloy frame and suits ladies. It measures 1,550x1,050x600mm when open and 880x370x750mm when folded. The electric bike runs on a 36V 8Ah Li-ion battery that lasts 600 cycles on a full charge. The 36V 250W central high-speed brushless geared hub motor is lightweight. Guided by a speed sensor and power-assist system, the model’s maximum speed can reach 25kph. The running distance can exceed 45km. The bicycle with 20x1.75in Kenda tires, a front V-brake and a lockable rear brake climbs 20-degree or steeper slopes. It has front microLEDs, a throttle, a battery indicator and a power lock feature.

1:1 pedal-assist system

Jiangsu Imi Electric Vehicle Technology Co. Ltd
Jiangsu Imi offers the Phyma-001-1 model that operates with a 1:1 pedal-assist system. The electric folding bike also integrates an LED screen that shows the three assist levels and a 36V 250W lightweight, high-speed brushless geared hub motor. The brushless controller is from KT. The maximum speed can be 25 or 32kph while the distance ranges from 40 to 60km. The bike’s 36V 10Ah Li-ion battery is fully charged in four to six hours via a 100 to 240VAC/2A charger. The model adopts an aluminium alloy frame, 20x1.75in Kenda tires, Tektro front and rear V-brakes, Wellgo pedals and Shimano 7-speed gears.

High-tensile painted steel frame

Sameway Sports Goods Co. Ltd
The 20in painted foldable frame of Sameway’s XW-CNZDC010 model is made of high-tensile steel. The fork uses the same material. The handlebar, stem, rim, and front and rear V-brakes adopt metal alloy. The folding bike has a 7-speed derailleur and 20x1.75in tires from Kenda. The model comes with a reflector mudguard carrier.

Shimano speed system

Tianjin Shun Qi Hang Metal Products Co. Ltd
Tianjin Shun Qi Hang’s model Shunqihang-F21-013 foldable bike utilizes a Shimano speed system. Its Kenda tires measure 2.4x1.95in. The frame is in metal alloy. A suspension fork and a double-wall rim is also integrated.

Adopts aircraft magnesium alloy

Yongkang Mandi Co. Ltd
Made of aircraft magnesium alloy, the model ZD-005 foldable electric bike from Yongkang Mandi weighs 19kg. Its rear wheel-mounted 250W motor can deliver 500W peak power. The power source is a 36V 12Ah Li-ion polymer battery, allowing the bike to travel 20 to 30 miles or 50 to 60km on a single charge. Speed ranges from 25 to 32kph. The model utilizes a 1:1 pedal assist system and a speed sensor. Throttle mode can also be supported. Users can select three speeds via the controller compatible with the bike display. The bicycle has front and rear LED lights, front V- and rear V- or drum brakes, and Shimano Tourney 6 or 7-speed gears. The handle stem is also foldable. Optional accessories include a basket, helmet and speedometer.