Electric Bike P Settings Chart: P01–P17 Power, Speed & Display Guide

When you first receive your new electric bike it works perfectly, but the standard settings may not be suitable for all users. You could prefer more assistance, a different speed, or a setting which helps your battery to last longer.

You are able to make changes to a number of these options through the P settings on your ebike's display; on your particular model the settings allow you to alter things such as wheel size, speed units, pedal-assist, and other display features.

The guide will demonstrate to you where you can find the P settings menu, explain the function of each setting, and assist you in deciding which ones to alter according to your riding style.

Why Customize Your Settings

It's not necessary to be a technology enthusiast in order to get the benefits of making these changes. Simply spending a few minutes configuring your e-bike's display can improve each of your rides.

You have the option of altering the way your bike transfers power. The setting that is used by default could seem jerky or too powerful. By adjusting the power setting, your bike will be able to start smoothly when it's stopped or provide you with quick assistance when going up hills. This allows you to set the power level according to your level of comfort and the conditions under which you are riding.

You will be able to extend the life of your battery since you don't need the full power all the time. If you alter the number of pedal-assist (PAS) levels and set a limit on the maximum current of the motor, you can reduce the amount of battery used. This simple adjustment might be what makes the difference between getting home with some battery remaining or having to walk your bike.

Adjusting the settings on your ebike can make your riding both safer and more comfortable. You could set a maximum speed that conforms to regional laws and also suits you. This will help to give your ride a gentler and more stable character, something which is particularly useful for new riders or when driving through busy city traffic.

It's important to make sure your ride data is accurate since your speedometer and odometer depend on it; if the wheel size setting is incorrect, your speed and distance readings will be wrong. Correcting this will ensure that your data is reliable when you're tracking your fitness or planning routes.

Accessing The Settings Menu

Electric bikes typically have an advanced or concealed settings menu which is not included in the standard manual. In order to access it, you generally need to press a particular combination of buttons on the control pad of your display. While the exact steps may differ, below are the most common methods that we have come across on various models.

Method 1: The "Up + Down" Press
The standard way to do this is with models such as the LCD-S866, M5 and SW900. While the bike is on, press and hold the "+" (Up) and "-" (Down) buttons together for 3 to 5 seconds; the display will then change from the main screen to the first setting, which is generally referred to as "P01".

Method 2: The "Mode" Button Press
You can press the "M" (Mode) or "i" (Info) button in order to access the settings, and if you hold it down for a few seconds the menu should appear.

Method 3: The "Power On" Combo
A different way is to press a combination of buttons when switching on the bike; for instance, you can press the 'M' button and then push the Power button in order to access the settings menu.

Don't worry if it doesn't work the first time, since some systems require the bike to be completely still. The timing may be difficult, so make sure to press and hold the buttons firmly. However, if you are still having trouble, refer to your bike's manual or search online using your display model (for example, "Bafang C965 settings menu").

On more modern and better-connected bikes,the settings are usually set up with the help of a smartphone. At present, a number of electric bikes make use of a special app in order to control features like speed limits and power output. This results in a more user-friendly visual interface.

Decoding The P-Settings

In the advanced menu there are various 'P-settings' or 'P-codes'; these are standard settings which control the way your bike functions. Normally you press the 'M' button to go through the P-codes and use the '+' and '-' buttons to alter their values.

The P settings chart shown below should be used as a reference rather than as a complete list. For example, models such as the SW900, S830, and LCD-S866 usually have the same P01 to P17 labels, but the value ranges can vary depending on the controller, motor, battery, and firmware.

Ebike P Settings Chart: P01-P17

P-Setting	Common Name	What It Controls	Safe Starting Point
P01	Backlight brightness	Sets LCD screen brightness.	Use a middle level for daytime riding and a lower level at night to reduce glare.
P02	Unit of measurement	Switches speed and distance between KM/H and MPH.	Choose the unit used in your region, then recheck P08 because the speed limit follows this unit.
P03	Battery voltage	Tells the controller the nominal pack voltage, such as 36V, 48V, or 52V.	Match the label on your battery. Do not guess here; the wrong voltage can cause errors or hardware damage.
P04	Display sleep timer	Sets how many minutes of inactivity pass before the display powers down.	5-10 minutes works for most riders. On many displays, 0 means sleep mode is disabled.
P05	PAS level count	Sets how many pedal assist levels appear on the display.	5 levels are easy to manage; 9 levels give finer control if your display supports them.
P06	Wheel size	Sets the wheel diameter used for speed and distance calculations.	Match the tire sidewall size, such as 20, 26, 27.5, or 29 inches.
P07	Speed sensor magnets or pulses	Sets the motor speed signal count used by the controller.	Leave the factory value unless speed is still wrong after P06 is correct.
P08	Speed limit	Sets the top assisted speed in the unit selected under P02.	Set this to your legal class limit, often 20 mph for Class 2 or 28 mph for Class 3 in many US areas.
P09	Zero start or kick start	Controls whether the motor can engage from a standstill.	Set to non-zero-start for smoother takeoffs unless your manual and local rules allow throttle start.
P10	Drive mode	Chooses pedal assist only, throttle only, or both, depending on controller support.	Keep the factory mode unless you know your throttle, brake cutoffs, and local rules support the change.
P11	PAS sensitivity	Controls how quickly pedal assist reacts when the crank sensor detects movement.	Start near the middle. Lower it if assist feels jumpy; raise it if assist feels delayed.
P12	PAS start strength	Sets the initial force when pedal assist begins.	Use a lower value for smooth city riding and a higher value only if hill starts feel weak.
P13	PAS magnet count	Matches the display to the pedal assist sensor magnet disc.	Leave it at the original value unless you replaced the PAS sensor.
P14	Current limit	Sets the maximum amperage the controller can send to the motor.	Never exceed the controller rating. Lower it by 2-3A for gentler acceleration and better range.
P15	Low voltage cutoff	Sets the voltage point where the controller protects the battery from over-discharge.	Use the battery or controller label value. Do not lower it to squeeze out extra range.
P16	Odometer reset or trip clear	Often resets total distance or trip data, depending on the display.	Check the manual before holding buttons here; this setting does not improve power or speed.
P17	Cruise control or auto cruise	Turns cruise behavior on or off when the controller supports it.	Keep it off for crowded riding, shared paths, or any setup without reliable brake cutoffs.

SW900, S830, and LCD-S866 Compatibility Notes

The P01-P17 pattern shown above is commonly used by the SW900 models, this pattern including P08 for the speed limit, P10 for the drive mode and P14 for the current limit; nevertheless, some controllers do hide values which they do not support, so it is normal for a code to be missing.

The S830 models regularly look similar to SW900 menus, but the firmware will differ according to the kit seller. In the event that your S830 shows C-settings rather than a P-code, treat the chart as a translation guide and check the value in the manual.

The LCD-S866 models make use of the Up and Down keys when accessing the settings and have the same initial codes, especially those numbered P01 through P09; special attention must be paid to P03, P14, and P15 since these depend on a matched battery and controller.

The way in which the controller is paired is important since the display only presents the menu; it is the controller that determines which features actually function, so two bikes having the same display could show different options or might omit some P settings.

Safety Before Changing P Settings

For each item, take a photograph or record the existing value before making any changes.
Alter the settings once, save the change, and then drive the vehicle at a low speed in an open area.

Do not adjust the current, voltage, or low-voltage cutoff levels above the values stated on the labels of the battery and controller.

Adjust P08 in line with the local e-bike speed regulations; just changing the display setting does not make it legal to use an off-road or unlocked configuration on public roads.
You should stop cycling and reset the default values if the motor surges, stops working, shows an error code, or the controller heats up.

Recipes For Your Ride

There is no one e-bike configuration that suits all riders since it comes down to your individual requirements. The following are three examples of e-bike setups for different kinds of riders to assist you in getting started.

The Efficient Commuter

The aim should be to attain the maximum range, to maintain reliability, and to give a smooth and predictable driving experience in situations involving traffic.

Recommended Settings:
- P09 (Zero Start): Set it to 0 so that the bike won't jump forward in heavy traffic and will have a smoother start.
– P14 (Current Limit): Reduce the default value by 15 to 20 percent (for instance, from 15A to 12A), since this results in slower acceleration and helps to conserve battery life when using your normal route.
- In the case of P05 (PAS Levels), select 5 or 9 levels; this will give you greater control over the amount of assistance you receive and allow you to use all of the battery power.
- With regard to the Power Ramp (if your bike is equipped with it): select a slower ramp rate so that the power turns on more gradually rather than appearing as if it's on and off.

The Fitness Rider

The aim is to carry out a good workout, with the motor providing assistance only on steep hills or when there are strong headwinds.

Recommended Settings:
- If your display shows PAS Level Power, set the percentages for the lower levels low (for example, 10%, 20%, 35%) so that you do the main amount of the work and only receive assistance when you actually need it.
– If your bike is fitted with a torque sensor, set the sensitivity to a lower level. As a result, you will need to exert more pressure on the pedals in order to receive assistance from the motor.
– With advanced systems such as Bosch’s eBike Flow app, you have the option of reducing the level of motor assistance for each mode; this means that a 'Tour' mode can be adjusted to be more like 'Eco', thus making your ride more difficult.

The Power User

Objective: Achieve the quickest acceleration, have strong torque, and attain the best hill-climbing ability.

Recommended Settings:
- P09 (Zero Start): Set at 1. This setting allows instant engagement from a standstill, enabling the quickest possible takeoffs. It should be used with care.
- P14 (Current Limit): Set it to the highest safe value that your controller allows (refer to the specifications of your controller). This will give you maximum torque, but it will reduce your range and place greater stress on the parts of your bike.
– With regard to the Power Ramp (if your bike is equipped with it): adjust it to the highest ramp rate; this will cause power to turn on almost immediately whenever you pedal or use the throttle.
- If you want to make the best use of your engine's power band when setting the Speed Limit (P08), then set it to the highest speed that is legally allowed in your area.

Troubleshooting With Settings

Many of the problems that cause a poor ride can be fixed without having to use a wrench. Problem: My bike jerks or lurches when I start off from a stop. Here is a simple troubleshooting guide.

Problem: My bike jumps or moves unevenly when I start riding from a stop.
Solution: This is generally due to the Zero Start setting. You should go to P09 and alter it from 1 to 0. After that, you'll have to pedal a little before the motor starts, which makes the takeoff smoother and easier to control. Additionally, if your battery range is low, adjusting the P14 (Current Limit) may be of some help.

Problem: My battery range is not good.
Solution: The primary cause of your battery draining is the amount of power that you consume. Start by using the lowest Pedal Assist level that is suitable for you, and then go to the settings to reduce the P14 (Current Limit) value. For instance, reducing it from 18A to 15A will help you ride a greater distance without losing a lot of power.

Problem: It seems that my speedometer is not accurate.
Solution: This usually means your wheel size is set wrong. Check P06 and confirm it matches the size on your tire (like 26, 27.5, or 29). If it’s still off, check that P02 (Unit of Measurement) is set to MPH or KM/H. Only then should you look at the more technical P07 (Motor Magnets) setting.

The problem is that my bike is still going too slowly even though I've turned the assistance all the way up.

 

The most probable cause is the P08 (Speed Limit) setting; make sure it hasn't been set too low and adjust it to the top speed you prefer (for example, 20 or 28 mph in the United States). If the speed limit is correct, your PAS levels could be set to low power. On certain displays there is a 'C-setting' menu in which you can alter the power for each PAS level.

Closing Thoughts and Safety

The display on your e-bike goes beyond simply showing your speed; it allows you to customize your riding experience. If you study the core ebike settings and adjust them, you can modify the bike to meet your requirements—whether that is for a longer commute, a more effective workout, or a more enjoyable ride. We urge you to carry out some experiments, but please ensure that you do so in a safe manner. Each time you decide to make a change, be sure to note down the default factory settings. Alter only one setting at a time and then have a short test ride to see how it affects your ride. By following this methodical procedure, you will be able to discover what each setting does and adjust it until you have the ideal setup for a cycling experience that seems to have been specifically designed for you.

Frequently Asked Questions

1. Q: Does changing the settings on my e-bike void my warranty?
Although most manufacturers permit alterations to basic settings, like speed limits and PAS levels, without the warranty being voided, you should still check the conditions of your warranty before making any changes and avoid carrying out drastic modifications since these might damage the components.

2. Q: What should I do if I make a mistake with my settings and have forgotten the default values?
A: A great many displays offer a factory reset feature, which can generally be reached by pressing and holding several buttons at the time of starting up the device. If it isn't available, you should contact the manufacturer of your bike or your dealer to obtain the authentic P-code values for your model.

3. Q: How can I tell whether the limit setting I currently have is too high for my controller?
A: Check your controller's specification plate or manual for the maximum amperage rating. Never exceed this value. Signs of too high current include overheating, reduced component life, or error codes on your display.

4. Q: Can I adjust these settings while riding my ebike?
A: No, most systems require the bike to be stationary to access the settings menu. This is a safety feature to prevent accidental changes while riding. Always stop completely before making any corrections.

5. Q: Why doesn't my ebike have all the P-settings mentioned in this guide?
A: Different controllers and display combinations support different features. Some basic displays may only have a few P-settings, whereas advanced systems may have dozens. Your bike will only show settings compatible with your specific hardware.