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Scientists at Massachusetts Institute of Technology (MIT) are testing a new electric wheel hub that features a wireless, remote control throttle that works by Bluetooth technology. The secret to the GreenWheel electric motor is that it is little larger than a bicycle’s standard hub and as a result can be fitted to the rear wheel of almost any standard bicycle.

Unlike other ‘retro fit’ electric bicycle motors, the GreenWheel has no wiring to fit – the throttle, which attaches to the handlebars, uses the same Bluetooth technology used in many mobile phones in order to control the electric motor.

Eco-friendly motoring

The GreenWheel is designed to deliver 25 miles of pedal-free riding, and this can be extended to 50 if the rider does some of the pedalling. The battery is intended to last for 40,000 miles. The battery can be charged by pedalling, or by plugging the wheel into a mains electrical supply for 15 minutes.

A spokesperson for the Environmental Transport Association (ETA) said: “Electrically-assisted bicycle make sense for those who are unable or unwilling to ride convent bikes, but the key to their success lies in them becoming more affordable.”

The GreenWheel electric motor is currently undergoing testing and no retail price has been announced.

Source: ETA