Sensor systems
There are several options on how to control the drive:
The so-called Drehmomentsensorik – DMS (engl. torque sensors) is a system that measures the power input of the rider. There are mechanical DMS, which are not very sensitive, as well as highly sensitive electro-magnetic DMS.
All FLYER models are equipped with this non-contact torque sensor technology. It measures the power provided through the pedalling motion in real time and reacts to the rider’s movement. For all intents and purposes, the rider does not need to “use his brain” just his feet.
Batteries
The lithium ion battery (Li-Ion) is the state-of-the-art battery technology employed for electric bicycles, and Biketec (maker of Flyer) was the very first manufacturer in Europe to use this type of battery in its production series. Its extremely lightweight design (2 – 2.5 kg) and its very long travel distance (50 km and more) significantly contributes to this development breakthrough and represents one of the biggest leaps in the advancement of the electrical bicycle’s history.
Motor / drive
There is a significant difference between hub motors and drives that are integrated into the bottom bracket. FLYER comes only with bottom bracket drives. They provide an optimal weight distribution, which provides stable handling. Also, wiring from battery to motor (which is prone to malfunctions) is limited. Removal and repair of front and rear wheels is much easier than models with hub motors. All Flyer models are equipped with maintenance-free, brushless motors.
Gear shifting systems
Depending on the model, all FLYER bicycles are fitted with a derailleur, gear hub or a combination of the above.
The derailleur is used to shift gears while pedalling and moving the chain from one sprocket to another. Shifting is somewhat easier; however, the system requires a little more maintenance and adjustment effort, but the purchase price is favourable.
The gear hub allows shifting the gears while the bicycle is not moving. All gears are shifted inside the rear wheel’s hub. This allows taking off at an optimal gear after stopping at a traffic light or an intersection. The gear hub is available as an 8-gear or 14-gear model (not available for all models). Gear hubs are virtually maintenance-free, and the service life of the chain is substantially longer.
The combined Dual Drive Shift is a combination of gear hub and derailleur (21 to 27 gears) and is used with the faster versions.
Did you know that…
…the energy a FLYER requires over a distance of 100 km is equivalent to taking a 3-minute long shower?
…the FLYER is available in four different frame sizes?
…you can ride your FLYER (of the bicycle category) on any bicycle path?
…the FLYER’s drive unit is almost totally quiet?
…a full battery charge costs only approximately 5 cents?
…most FLYERs are available with “puncture-proof” tyres?
…a license is not required for FLYERs of the bicycle category?
…FLYERs are perfectly suited to pull a child trailer?
… FLYERs are not afraid of rain or snow?
…your opinion is extremely important to us?
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