To remove the electronic speed limiter on V3 units to reach 19mph do the following:
-Start with the scooter powered on and set to both in Speed Mode 1 and Single Motor mode. -Hold down the brake and accelerator and then simultaneously push the power button 10 times.
There should be a beep if successful. Set the scooter to Speed Mode 3.
It can sometimes take 3 or 4 tries before you get a beep verification that the speed limiter is off.
Method to check: first you can prop up the scooter on a desk/table with the wheels free, spin the back wheel and engage the throttle. The scooter should read up to 21/22mph and then drop to 17mph after the electric speed limiter kicks in. After doing the unlock sequence try this again and if successful the speed will remain around 21mph.
Max unlocked speed is variable with rider weight. Riders roughly 200lb can reach 18mph, 150lb riders can go 20mph on V3.
NOTE: If you repeat this sequence your electric speed limiter will go back into place!
Here's a helpful video describing the instructions above.
If this isn't working, feel free to send us at email at help@unagiscooters and we'll happy to assist you! Make sure to include a video of yourself doing the unlocking sequence.