I can't figure out how Zero was able to change the gearing on the Zero SR from 2015 to 2016 and yet the 0-60 time and top speed didn't change. The new IPM motor puts out the same torque, weight stayed the same at 414lbs, and same motor controller.
The reduction in the number of teeth on the rear sprocket from 132T to 130T should result in higher speed but lower torque at the wheel.
Zero could limit the motor to a lower rpm in 2016 to keep the top speed the same.
So why didn't the 0-60 time for 2016 change? Shouldn't the 0-60 time for the 2016 Zero SR be slower? What am I missing? Is it just programming in the motor controller?
Though I can't say for sure, the 0-to-60 time might have stayed the same because of the increased power ability of the new cells. It's not been reported because it's not hugely relevant to most user's experience, but besides having more energy capacity, the new battery cells also have more power output capability, or, in more technical terms, a higher C rating.
