Current Motors announced the Super Scooter. It uses a hub motor which is rare in a high-performance scooter or motorcycle — most models use a centrally mounted motor connected to the rear wheel with a chain drive. The advantage to a hub motor is that it is far quieter and simpler. The noise that you get from a typical bike or scooter that uses a chain sounds from the chain, and regenerative braking can be more difficult to implement, because manufacturers tend to use a freewheeling hubs. You want regenerative breaking because it gives you far more range, particularly in the high-traffic conditions that these things are best at. It can move to 50 miles or 75 kilometers.
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