2014 Zero SR

Zero, the Santa Cruz, Calif., maker of electric motorcycles, has unveiled the SR for 2014, which promises an improved range of 171 miles. (Zero Motorcycles)

Zero, the Santa Cruz, Calif., electric-motorcycle company, has unveiled a new model for 2014 and a new accessory that increases both engine torque and range.

The accessory is a new "Z-Force Power Tank" that extends the length of the ride and the power of the engine. It can be purchased with, or added to, any new 2014 model.

The new model is the 2014 Zero SR, a deep-red racer that promises zero to 60 mph in 3.3 seconds, thanks to a massive 67 horsepower and 106 foot-pounds of torque. It is said to be capable of 102 mph.

The company also is offering a five-year power-pack warranty that covers every new model up to 100,000 miles.

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The 2014 line will feature improved front and rear suspension, a new dash and new choices for riding mode -- Zero's traditional "eco" and "sport" modes, plus a new "custom" option.

The year's line will include the company's Zero S, Zero DS and Zero FX. The company says prices for the Zero S and DS will actually be about $1,000 lower than the 2013 models.

CORRECTION: An earlier version of this story said the lowered price applied to all three Zero models. It does not apply to the FX.

That's a timely savings, since the cost of the Z-Force Power Tank accessory is $2,495, installation not included.

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