For several reasons we designed our bikes to be motor-assisted at the front wheel, as opposed to the rear wheel or at the crank. One reason is better weight distribution....
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  This is an update on an earlier post "Our Batteries", please refer to that article for background on NCR chemistry. Estimates of the service lives of lithium ion batteries,...
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Virtually all electric bikes now use radial flux brushless DC motors (BLDC). These motors however, vary considerably in audible noise level. Many (particularly geared hub motors) produce quite a noticeable...
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  “Efficiency” is key to engineering an ultra lightweight vehicle of any type. Both motor and drivetrain electrical and mechanical efficiencies have been optimized in our bikes: Motor With a...
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Over the past few years my wife and I have travelled to numerous places for extended cycling trips of various types… cycle-path touring in Belgium and the Netherlands, road touring...
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Our “hybrid” model bikes have characteristics of a road bike (light weight, 700c large diameter wheels for low rolling resistance) and characteristics of a light-duty mountain bike (somewhat wider tires,...
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Most people, in North America at least, are familiar with derailleur type gearing on bicycles. Most mountain bikes and road bikes have derailleur gearing, which is characterized by multiple sprockets...
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