Velotric E-Bike Display & Controller: Settings, Modes & Speed Adjustment
Velotric E-Bike Display & Controller: Settings, Modes & Speed Adjustment
To start tweaking your Velotric e-bike’s display and controller, press and hold the Up and Down buttons at the same time for about three seconds. This takes you into the main settings menu (often labeled P or P01, P02, etc.) where you can adjust speed limits, wheel size, backlight, and more. The exact sequence varies slightly between models like the DPC-18 or VLCD5, but the core logic is consistent across most Velotric bikes.
Before You Start: What You Need and What to Record
You don’t need tools to change display settings, but you do need a few things ready:
- Your owner’s manual – Helps confirm which P‑parameter controls each setting on your specific display. Velotric models (Discover 1, Nomad 1, Thunder 1) sometimes use different parameter numbers.
- The current default values – Before making changes, write down the existing values for key parameters (speed limit, wheel circumference, backlight level). This makes factory reset recovery much faster.
- A safe place to test – You’ll want a flat, straight stretch of road or path where you can pedal to confirm speed readings and motor cut-off behavior after adjustment.
If you’ve never entered the settings menu before, check your bike’s manual for model-specific shortcuts. A few older Velotric displays use Power + Up instead of the standard Up + Down hold.
Accessing the Settings Menu
Once you’re ready, follow this exact sequence:
- Turn on the bike with the power button.
- Press and hold both Up and Down buttons simultaneously for 3 seconds. The display will switch from the ride screen to a parameter code like P01.
- Use Up/Down to scroll through parameters. Each P‑number controls a different function.
- Press Mode/M to enter a parameter for editing, then Up/Down to adjust the value. Press Mode/M again to save.
- Exit by pressing the Power button once, or wait for the display to time out.
Common failure point: If the display doesn’t switch to the settings menu after 5 seconds, you may be pressing the wrong button combination. Try Power + Up instead. If neither works, the display might be locked by a dealer setting – contact Velotric support.
Pedal Assist Levels and Ride Modes
Velotric bikes typically use a 0–5 pedal assist system (PAS). Level 0 gives no motor power; Level 5 provides maximum torque. On torque-sensor models (Discover 1, Nomad 1), the motor responds proportionally to how hard you pedal, so higher levels feel more aggressive even at the same cadence.
- Level 0 – Pure human power, no motor draw. Good for flat cruising when you want a workout.
- Level 1–2 – Gentle boost, maximizes range. Use for relaxed commuting.
- Level 3–4 – Balanced assist for rolling hills or headwinds.
- Level 5 – Full power, quickest acceleration, but drains the battery fastest.
Walk mode is separate from PAS. While standing next to the bike, press and hold the Down button. The motor will push the bike forward at roughly 3 mph – a huge help for loading onto a rack or pushing up a ramp. Release the button to stop.
Speed Limit and Wheel Size: The Two Most Critical Settings
The most common reason to enter the settings menu is adjusting the speed limit (usually P08 or P09). Velotric e-bikes ship configured for their class:
- Class 2 (throttle + pedal assist): limit is 20 mph (32 km/h).
- Class 3 (pedal assist only, up to 28 mph): limit is 28 mph (45 km/h).
To change the limit, find the correct P‑parameter, enter it, and set the value in km/h. For example, if you want a 25 mph limit, enter 40 (since 25 mph ≈ 40 km/h). The display converts internally; your speedometer will still show mph if you’ve set the unit to mph.
Critical: Wheel circumference must match your tires. This parameter (often P01 or P02) tells the controller how far the bike travels per wheel rotation. If it’s wrong, your speed reading and odometer will be off, and the motor may cut off earlier or later than intended. Common values:
| Wheel size | Typical circumference (mm) |
|---|---|
| 26″ | 2116 |
| 27.5″ | 2206 |
| 700c | 2150 |
| 20″ (folding) | 1590 |
Find the exact number on your tire sidewall (e.g., “26×2.0”), then look up the correct circumference in your manual or use a bike computer calculator. Never guess – a 1‑inch error can throw your speedometer off by 5 mph.
How to Verify Your Speed Adjustment Worked
After changing the speed limit and/or wheel size:
- Ride on a flat, straight road at a steady pedal cadence.
- Use a phone GPS speed app or a known speed sign to compare your display reading to actual speed.
- If the display reads within ±1 mph of actual speed, the settings are correct.
- If the discrepancy is larger, double-check the wheel circumference and repeat the test.
- Also check that the motor cuts off smoothly at the new limit – it should taper power, not jerk.
Failure mode to watch for: If you set the wheel circumference too large, the display will show a speed lower than actual, and the motor may cut off later than the legal limit. If too small, you’ll show a higher speed and the motor will cut off early. Both can cause confusion on group rides or lead to inadvertent speeding.
Backlight, Units, and Other Useful Adjustments
Several quality-of-life tweaks live in the settings menu:
- Backlight brightness (P10 or similar) – Range 1 (dim) to 5 (brightest). Brighter helps readability in direct sun but draws slightly more power. A good middle ground is 3.
- Unit switching (P12) – Choose between km/h and mph. Some models let you toggle this by holding the Power button on the main screen.
- Auto‑off timer (P09 or P13) – Set how many minutes the display stays on after you stop pedaling. 5 minutes prevents battery drain if you forget to turn off the bike.
- Battery low voltage cutoff – Usually not adjustable from the display, but some P‑parameters let you change it. Do not lower this value – it risks over‑discharging and permanently damaging your battery.
Concrete example: On a Velotric Thunder 1, riders often set backlight to 5 for summer rides and auto‑off to 10 minutes so the display stays live during short stops at traffic lights.
Error Indicators and Troubleshooting
Velotric displays show error codes when something goes wrong. These are the most common:
| Code | Meaning | Likely cause | Next step |
|---|---|---|---|
| E01 | Motor hall sensor fault | Loose wire between motor and controller | Check connector; reseat cable. |
| E02 | Brake lever sensor fault | Stuck lever or misaligned magnet | Squeeze both brakes several times; adjust sensor magnet gap to 1–3 mm. |
| E03 | Throttle fault | Throttle stuck open or sensor broken | Inspect throttle return; if no improvement, contact support. |
| E04 | Display‑controller communication error | Damaged display cable or loose connection | Unplug and reseat the display cable; check for bent pins. |
| E07 | Battery voltage mismatch | Battery too low or overcharged (rare) | Charge battery fully; if code persists, have battery tested. |
When an error appears, the bike will stop assisting to protect components. First step: Turn the bike off, wait 10 seconds, and turn it back on. If the code clears, the issue was a temporary glitch. If it returns, inspect connectors and wires before calling support.
Stop/escalate threshold: If you’ve reseated all connectors, checked for visible damage, and the error remains after a full charge or a factory reset (see below), do not attempt to repair internal controller or motor components yourself. Contact Velotric customer service or an authorized dealer. Continuing to ride with an active error could damage the motor controller or battery.
Factory Reset
If you’ve made too many changes or run into calibration confusion, a factory reset restores all P‑parameters to their original defaults.
- Enter the settings menu (Up + Down hold).
- Scroll to the last parameter – often P99 or P100 (check your manual).
- Press and hold the Mode button for 5–10 seconds until the display flashes or shows “Reset”.
- Turn the bike off and back on.
After reset, you’ll need to re‑enter your wheel size, speed limit, and unit preference. That’s why writing down the defaults before resetting is so helpful – it saves a second round of trial and error.
FAQ
Can I use any replacement display on a Velotric bike?
Not easily. Velotric uses a proprietary communication protocol (often “No. 2 protocol”). An aftermarket display like the [Bike Display](https://ebikedelight.com/lectric-e-bike-display-controller-settings-guide/) LCD 5 Pin M5 Control Panel Bike Screen 24V 36V 48V 60V Universal Scooters Electric Meter Panel Bikes 22.2 31.8mm Handlebars Display to Enrich Cycling Journey (No. 2 Protocol) might work if it matches the protocol, but you risk losing torque sensing, error codes, or walk mode. Stick to Velotric‑specific replacements for full functionality.
Why does my speed show 0 when I’m moving?
This usually means the wheel speed sensor is disconnected or the magnet is misaligned. Check the sensor on the chainstay and the spoke magnet; the gap should be 1–3 mm, and the magnet must pass directly in front of the sensor with each wheel rotation.
How do I change the speed limit from km/h to mph?
On most displays, hold the Power button for 2 seconds on the main screen to toggle between km/h and mph. Alternatively, go into the settings menu and change the unit parameter (often P12).
Can I disable the speed limiter entirely?
Some riders set the limit to 99 km/h, but the controller firmware usually caps actual output at around 28–30 mph. Exceeding legal class limits also risks fines and voids the warranty. Always check your local regulations before altering.
Explore This Topic
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– Super73 App & Controller Guide: Settings, Modes & Firmware Updates
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Ryan Williams has spent over 8 years testing, repairing, and writing about electric bikes. He has personally ridden and reviewed 150+ e-bike models from brands like Lectric, Aventon, Rad Power, Super73, and dozens more.
Before founding EBIKE Delight, Ryan worked as a bicycle mechanic for 5 years at independent bike shops across California, where he specialized in e-bike conversions and electrical system diagnostics. He holds a Certificate in Electric Vehicle Technology from the Light Electric Vehicle Association (LEVA).
Ryan’s work has been cited by Electric Bike Report, Electrek, and BikeRumor. When he is not testing the latest e-bike on California backroads, he is in his workshop tearing down batteries and controllers to understand what makes them tick — and what makes them fail.
Areas of Expertise
E-bike performance testing and real-world range verificationBattery diagnostics, charging best practices, and safetyBrand comparisons: Lectric, Aventon, Rad Power, Super73, and moreError code troubleshooting across major e-bike systemsE-bike laws, registration, and compliance by state
Ryan believes every rider deserves honest, hands-on information — not marketing hype.