If you’re a fan of electric motorcycles, you’ll know that Californian-based Zero Motorcycles likes to update its range of all-electric motorcycles one a year.
And, unlike many automakers and motorcycle companies, that means more than just a few new paint options and handlebar tweaks.
In fact, its entire range, from the motocross-ready Zero MX to its headline Zero S streetfighter, have been rebuilt from the ground up.
As a consequence, every one of Zero’s street-legal motorcycles gets a bigger battery pack as standard, an improved, air-cooled motor, a higher top speed, an interactive smartphone app, and the ability to recharge to 95 percent full in under an hour using an optional Chademo charge accessory.
2013 Zero S
For 2013, that has changed with the introduction of a more traditional motorcycle design, with the area usually reserved for a fuel tank on a gasoline motorcycle doubling up as a storage area.
It also offers pillion capability for the first time as standard, with a new, two-tiered seat replacing the old, tired motocross-style flat seat of previous years.
Performance and range has improved too, with the 2013 Zero S capable of a maximum 40 kilowatts of power, and 68 foot-pounds of torque. At the time of writing, Zero hasn’t disclosed a 0-60 time, but top speed has increased from 88 mph to 95 mph.
Range is also improved, thanks to a larger, 8.5 kilowatt-hour battery pack included as standard, or a larger, optional 11.4 kWh pack.
In mixed riding, Zero says the standard 8.5 kWh battery pack will provide 70 miles of range, while the larger, 11.4 kWh pack will yield 93 miles of mixed riding.
Stay in the city limits, and Zero claims the larger battery pack will give the 2013 S a range of 137 miles.
2013 Zero DS
Historically, the Zero DS, or Dual Sport, has been the more adventurous, dirt-track-ready twin to the road-only Zero S.
That family tie has continued for the 2013 model, with the same enhancements found on the 2013 Zero S making their way over to the 2013 DS.
These include the redesigned seat, pillion capabilities, storage area, power train, and battery improvements.
Thanks to a different suspension setup and broader handlebars, the riding position on the 2013 DS is more upright than its streetfighter sibling.
At 395 pounds with the 11.4 kWh battery pack fitted, the Zero DS is also 13 pounds heavier than a similarly-specced Zero S.
That extra weight has an impact on range, dropping it to 62 or 82 miles of combined riding and 95 or 126 miles of city riding, depending on the battery pack chosen.
2013 Zero XU
With similar improvements in battery and motor technology to the rest of the range, the 2013 Zero XU becomes a serious commuter motorcycle for the first time.
Top speed has been improved from a rather unimpressive 65 mph to 77 mph, while a small 2.8 kWh battery pack provides enough range for a basic, 20 mile commute.
In fact, from a distance, the XU looks to have adopted the best parts of the outgoing 2012 Zero S, without compromising on the battery swap capabilities which made the original XU an ideal apartment-dweller’s electric vehicle.
Like its predecessor, riders can park up, and remove the 2.8 kWh battery pack, charging it away from the motorcycle. This makes it the motorcycle of choice for anyone wanting to switch to electric power, but who doesn't have a charging station nearby.
Failing that, the Zero XU’s compact dimensions and 218 pound weight make it easy to maneuver through doors and perhaps even into an elevator.