BionX is Both, Electric and Exercise
With four assist and four regen modes, BionX is a pedelec system and a training tool. Canadian manufacturer EPS is preparing to sell the compact hub drive unit also in Europe.
In September 2004, Canadian Electric Power Systems manufacturer EPS presented the pedelec hub drive system BionX for the first time in Europe. It was exhibited at IFMA in Cologne, Germany and Vel Expo Ticino in Lugano, Switzerland.
The 250 Watt hub motor including power sensor and electronics comes in a ready-to-use rear wheel. The 8 Ah, 34 V NiMH battery is located in a compact battery box. To mount the system to any regular bicycle one only needs to exchange the rear wheel and attach the battery box to the frame. To do so, one simply uses the bottle holder screw holes to mount the battery holder.
On the display at the handlebar the user switches on and off the electric system, the light, and chooses the riding mode. There are four assistance modes ("A" modes): 25, 50, 100, or 200 percent. Four 'G' modes are energy regeneration options. The higher the resistance, the more energy is generated to recharge the battery. Also shown on the display are cumulative kilometers, speed, and battery data such as cycles, special happenings (deep discharge etc.).
The entire electric bike system weights 6.6 kg. The motor, controller, cables and display weigh 2.5 kg, and the battery 4.1 kg. This makes the BionX the most compact power sensor system for pedelecs, which is not from Japan. It does not only make riding easier, in the G-modes it can also be used as a training tool. The range even more depends on the rider and his/her preferences than with other systems. Not regarding the regen modes, EPS states 30 to 70 km (20 to 50 miles) range on one battery charge.
The gearless electric bicycle kit has proven to be absolutely silent. Due to its construction it does not work in combination with a coaster brake or gear hub jet.