Testing Data​

I perform detailed data-based reviews, see below for a summary of my test results to date. I do not charge for testing or reviews. If you have a product you would like tested and/or reviewed, please send a request to reviews@electron-surfer.com. 

This is my method of testing bikes, scooters, and rides.  It is by no means a definitive method; however, consistent methods lead to comparable results.

I have never based my review methods on what others are doing, interestingly Electric Scooter Guide has similar ideas to mine and has some good data to also help with your decision making, see Chuck at https://electric-scooter.guide/

Range Testing

Most manufactures, sometimes greatly, exaggerate range claims.  Often the range taps into that last 20% of battery that is best to conserve for maximum battery life. Therefore, I conduct multiple range tests in various power levels.  I record the odometer while using at least two distance tracking devices, GPS data is used to calculate the range or to calibrate the odometer.  I also record weather data and measure the motor temperate post ride.  

These ranges are not absolute but should give a good barometer of what to expect.  I typically run the battery to approximately 20% remaining using the voltage (when possible) versus the battery indicator.  In order to protect batteries I do not run them down to empty.  After a range test, I fully recharge the battery using a watt meter to arrive at a power consumption so I can calculate the watt hours used per mile (wh/mi).  I then use this efficiency to calculate the range of the entire battery capacity. Note with efficiency a lower wh/mi is a higher efficiency.

MakeYearVoltageAmp HoursWatt HoursPeak WattsAccelerationBrakingTop SpeedHill ClimbCommuter RangeCommute EfficiencySpeed RangeSpeed Efficiency
Zoom Stryder2018336.5214.55007.3048.516.948.0
Glion Dolly 2152018366.6237.66007.0543.617.233.0
EcoReco S520183682886006.7549.520.326.0
2018 Zero 820184810.4499.29606.4526.921.823.0
2018 Zero 92018481362412006.7214.424.824.0
Gotrax GXL V22018365.2187.22507.4015.613.841.9
Emove Touring2019481362412006.4920.420.817.3
ORCA Mark I201948157207207.5017.416.030.8
Emove Cruiser20205230.5158614506.3511.924.117.6
Unagi E500 Dual202033.69302.410006.3722.318.819.27
Unagi E500 Single202033.69302.45008.1025.817.024.07 to ~150'
Dualtron Mini20205217.59101450
Fiido20203610360500
Glion Dolly 2252020367.8280.8500
KingSong 14D2019488.75420800
0
0
0
0
0
0
0
0
0

Scooters

Test Data 1
Test Data 1

Bikes

Test Data 1
Test Data 1

Acceleration Testing

I do a minimum of 4 tests to 100 feet, record the time with video, and average the times.  I test throttle only or zero-start mode to eliminate user input inconsistencies.  If that is not possible due to the settings of the bike or scooter, the least possible amount of rider input force is used. 

Scooters

acceleration_020320
Test Data 5

Bikes

Test Data 5
Test Data 1

Braking Testing

Being able to stop is even more important that acceleration or range for rider safety.  To that end, I perform a minimum of 4 tests from 20 mph (32 kph) for electric bikes and 15 mph (24 kph) for electric scooters and rideables.  I then calculate the average stopping distance. 

Scooters

Test Data 8
Test Data 9

Bikes

Test Data 9
Test Data 1

Hill Climbing

Hill climbing claims is interesting to me with manufacturers stating that their scooter will climb 30 percent slopes while others say 45 degree slopes.  Hill steepness is often misunderstood and can  be expressed in percent grade (rise/runx100) or degrees slope.  In the very hilly city of San Francisco California (https://www.7×7.com/the-real-top-10-list-of-steepest-streets-in-san-francisco-1786501295.html) there are only two streets that exceed 30% grade.  

I perform hill climb tests from a stop at a hill that is 310 feet long with a 30 feet gain in elevation.  I conduct the climb throttle only with 80% or greater charge. The slope is variable with a maximum of 14% grade at its steepest point.   The slope was measured at various points with an inclinometer at 7 to 8 degrees which calculates to a 12 to 14 % grade.

Scooters

Test Data 12
Test Data 13

Bikes

Test Data 1
Test Data 13

Top Speed

Top speed is another metric that manufacturers often exaggerate.  This can be done by overly optimistic displays or by using super light “test” subjects.  I do top speed testing at a full charge, on flat terrain, and at the maximum performance settings using verification with two GPS speed devices. 

Scooters

Test Data 1
Test Data 1

Bikes

Test Data 1
Test Data 1

Effects of Rider Weight

Rider weight is probably the biggest influence on electric scooter performance.  It does affect electric bike performance, but in my experience, that effect is less than on scooters. When possible I will test scooter performance with various weight riders, this section will show some of this information, I hope it is helpful. 

Scooters

Test Data 1

Bikes

Test Data 1