⚠ This is an electric dirt bike (e-moto), not an e-bike
It's a high-voltage off-road motorcycle. Check the rider age in your bike's manual. Many states and cities treat these as off-road motorcycles, so check your state's off-road vehicle (OHV) rules before riding anywhere public, and always wear a helmet and protective gear.
Only do the safe checks on this page. The battery, motor, controller and high-voltage wiring are for trained technicians: never open them or unplug high-voltage connectors. For anything else, contact an authorized GOTRAX dealer. About e-moto codes on this site
⚠ Stop riding and get it checked Unplug the charger. Only ever use the charger that came with the bike, and don't charge a battery that's hot, swollen or smells.
Quick answer
E8 on the GOTRAX Fitz16 electric dirt bike means “Over voltage protection.” Most likely cause: a charging problem, such as too high a voltage or current, often from a wrong or faulty charger. Try this first: unplug the charger and only use the original.
Code meanings vary by brand. The same number can mean different things on different displays and controllers. Check your bike's manual to confirm.
About the GOTRAX Fitz16 electric dirt bike
GOTRAX's Powersports Error Codes page says these codes apply to the GOTRAX Fitz16 electric dirt bikes. source Meanings are shortened from the page's sentences. For example, "The bike is experiencing a controller malfunction" is shown as "Controller malfunction". source
In plain English
The battery stopped charging or protected itself because the voltage or current was too high, or charging didn't start properly. The most common cause is a charger that isn't the original one, or a faulty charger.
Step-by-step checklist
Reset
Work from the top. Steps go from free and easy to shop jobs. Switch the bike off before touching any connector. Tick each step as you go. Your progress is saved on this device.
1 Unplug the charger and only use the original Free If this code showed while charging, unplug the charger. Only ever use the charger that came with the bike: a wrong or faulty charger can damage the battery and is a fire risk.
2 Check the outside of the battery (don't open it) Free Look at the battery case only. If it's swollen, cracked, leaking, very hot or smells, don't ride or charge it, move it away from anything flammable if it's safe to, and contact your dealer. If it smokes, get everyone out and call 911.
3 Write down the code and when it happens Free Take a photo of the display and note when the code appears: at switch-on, under hard acceleration, on climbs, in rain or while charging. Your dealer will ask for this.
4 Contact an authorized dealer Shop job If the code stays after these checks, stop riding and contact an authorized dealer for your brand. The battery, motor, controller and high-voltage wiring are for trained technicians only. Don't open them or unplug high-voltage connectors.
⚠ When to stop and get a shop
Electric dirt bikes run on high-voltage batteries and powerful motors, far stronger than most e-bikes. The battery, motor, controller and high-voltage cables are for trained technicians only: never open them or unplug high-voltage connectors. If these checks don't clear the code, contact an authorized dealer.
Anything inside the battery, the controller, the motor or the high-voltage wiring is a job for an authorized dealer.
Still not fixed?
Pages to try next:
When it's time for a shop: if you've worked through every step and the problem is still there, contact an authorized dealer for your brand. Bring your notes on when it happens, plus the code.
Words on this page: Controller
Sources
Written and checked by Kazolt against the sources above. Last checked: October 23, 2026. How we write our fixes
Does E8 mean something different on your bike? Let us know so we can fix this page.