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"You could make a pretty compelling argument that motorcycles are currently much better acceptors of electric power train technology than cars. That&amp;#039;s especially true since the development of battery technology is still an on-going process. Bikes are less likely to be driven long distances than cars, which reduces range anxiety, and due to their dimensions, they&amp;#039;re easier to park near recharge points.  Practicalities aside, California-based Zero Motorcycles clearly understands that electric bikes can be loads of fun too. The new top of the line Zero SR streetbike now sports a 660 amp motor that provides 67 hp and a massive 106 lb-ft of torque. Sixty comes in 3.3 seconds and the bike will go on to reach a top speed of 103 mph. Zero has kept the weight down to about 400 lbs, which should keep the SR more agile than most other bikes with 100+ lb-ft. With its low weight and seamless, silent acceleration, the SR is sure to provide a unique riding experience. PHOTOS: 2014 Honda CBR300R The SR also benefits from some upgrades, which will eventually make their way across Zero&amp;#039;s entire lineup. Those include improved suspension and brakes as well as an optional battery pack that allows a range of 171 miles. The three riding modes, eco, sport, and custom can be selected and adjusted through Zero&amp;#039;s app available on iOS and Android phones. The $16,995 SR will slot in above Zero&amp;#039;s existing S, which has had it&amp;#039;s price reduced by $1000 to $12,995, while the optional battery pack will cost you an additional $2,495.      "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.roadandtrack.com/new-cars/news/a5974/zero-motorcycles-sr/>