I don't plan to ride without charging at work, but would feel better knowing I wasn't dependent on it.
I was considering the SS9, but it's hard to get a straight answer about it's range. Energica advertises 130 miles of "extra urban" riding, but doesn't say what that is. Just yesterday, someone posted in am Energica group that they get 70 miles at 70 mph with their 21.5 SS9. Even if that' estimate is on the low side, itt doesn't sound like that bike would give more cushion than one of the Zero options.
On electric motorcycles, IMAO, it is best to ignore all range claims from anybody anywhere and use 7 miles (11km) per KWH for useable KWH capacity for an average range estimate. From there, add some range when going extra slow and subtract range when going extra fast. Also, consider stuff such as hills, wind direction vehicle total weight, etc. to make adjustments. So the Energica 21.5 battery has a useable capacity of around 19 KWH. 19 KWH times seven miles=133 miles average range. You will often get better as well as worse than that. The best way to increase range is by riding slow.
Notice my method for range is very close to Energica's "extra ubran" claim. FWIW, I also think Energica's names for range are stupid. I wish electric motorcycles would use the Tesla method. Only mention range for 65 mph, level ground, no wind. But my times seven idea works well, IMO, for the starting point for any electric motorcycle.
You can figure out charge times a similar way. No need for them to mention minutes or hours. Just use simple math.
-Don- Auburn, CA