Positive Future #202 (Feature photo – The Copenhagen Wheel – courtesy of the Copenhagen Wheel Project)
While the Copenhagen Wheel has been around a while, its entry into the commercial markets has taken some time. It is a wheel that electrifies your bike. You simply put it on as the back wheel. Cost of the bike ranges between $1,500 and $2,000.
Clean Technica just published a review of the Copehagen Wheel. You can read the full report here that includes specs and impressions.