![]() ![]() Traditionally eZip bikes have used externally mounted brushed motors while IZIP’s feature hub motors. When riding it isn’t noticed so much but trying to get it up stairs, into cars or positioned on bike racks can be a real pain. I’ve lifted both the eZip and IZIP bicycles, one right after another, and the eZip is just so much heavier. ![]() Steel is tough and provides a fluid ride but the weight will always be a factor and creates more work for the motor and user when being maneuvered. Steel is a time tested material in bicycles and is even preferred by some riders today despite advances in aluminum and carbon fiber. The eZip line of bikes features steel frames instead of aluminum which adds significantly to their weight but dampens some of the vibration felt when riding. The motors on eZip bicycles are also stronger because they have to carry more weight but this also means more wear on the bike and possible handling and stopping disadvantages. For this reason, the eZip line is built with batteries hanging from a rear saddle rack and can accommodate two batteries instead of just one. The up side here is that Lead acid is more stable, easier to recycle and much less expensive to replace. These batteries can only endure a a small fraction of the charge cycles that Lithium ion can before they begin to degrade and under perform. ![]() The eZip line uses Lead acid batteries that are much heavier than Lithium ion equivelents. There have been subtle changes in the eZip and IZIP lines over the years but the primary trade off has always evolved around the batteries being used and weight of the bike frames. Primary differences include battery type, weight and component grade with IZIP being the more premium line. Currie Technologies, founded in 1997, offers two lines of electric bikes and scooters known as the eZip and IZIP which offer low and mid-range value. ![]()
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