Today I am trying to help you decide between the few options there are for the Zero 10x and the other scooters that share the same platform.

Prior to testing I always verify that P settings are using the manufacturer defaults and not limited.
Performance related settings for all 3 scooters were as follows:
P8 = 100%, P11 = 2, light electronic braking and P12 = 3, medium torque start.

Specification Measured/Verified by Electron Surfer
Reviewer Height/Weight: 5'10"(178cm), 175 lbs (79kg)
Make: Zero
Model: 10x
MSRP: $1,699, $2,159, $2,399
Warranty: 12month
Motor 52v versions: 1,000 watt, dual
Motor 60v version: 1,200 watt, dual
Controller Output: 2x25amp
Display: QSS4
Battery: 52v/18.2ah = 946.4 watt hours,Sinc cells
Battery: 52v/23ah = 1196 watt hours,LG cells
Battery: 60v/21ah = 1260 watt hours,Samsung cells
Charger/Recharge Time (advertised/observed): 2 amp on 60v, 1.7 amp on 52v (8 hrs, 5.5 hrs)
Tires: 12x 3 inch tubed
Suspension: Dual single spring, adjustable
Brakes: Mechanical on 18.2ah or Zoom Hydraulic w/140mm rotor
Water Resistance: Not listed
Weight limit: 330 lbs (149.7 kg)
Advertised Weight: 80 lbs / (36.3 kg)
52v/18.2ah Weight: 72.2 lbs / (32.7 kg)
52v/23ah Weight: 73.2 lbs / (33.2 kg)
60v/21ah Weight: 74.6 lbs / (33.8 kg)
Unfolded Length (LxWxH): 51x25x50 in (1295x635x1270 mm)
Folded Length: 51 in (1295 mm)
Deck Height: 9 in (229 mm)
Deck Clearance: 6.5 in (165 mm)
Deck (length x width): 19 X 9 in (483 X 229mm)
Handlebars from deck: 40 in (1016 mm)
Handlebar Rotation: 90°+
Handlebar Width: 25 in (635 mm)

Timecodes
0:00 Intro
0:49 What are the 3 Options?
1:16 Price vs. Battery Capacity
1:54 Acceleration Comparision
2:23 Weight Comparison
2:42 Braking Comparison
3:00 Hill Climb
4:17 Range Comparison
4:36 Comparison Graph
5:15 What Would I Buy?
7:20 Ride 52volt 18.2ah version
11:37 Ride 60 volt version
14:23 Deck Size
15:10 Close Ups
16:09 Lights at Night
16:25 Folding
17:19 Handlebars
17:48 Conclusion