Summary of Ebike Components and what the do

Ebike Components

1. Battery

Description: The battery powers the motor

Key Specs:

• Voltage (V) Speed

• Capacity (Ah) Capacity

• Energy (Wh) Distance

Types:

• Lithium-Ion (Li-ion): Most common

• Lead-Acid: Old Tech

Considerations:

• Range: More Wh = more range.

• Charge Time: How long to charge the battery.

2. Motor

Description: The motor drives the bike, assists with pedaling or propels full on.

Key Specs:

• Power (W): Rated in watts, motors range from 250W to 1000W and beyond. More power = better performance, especially on hills.

• Type: Where the motor is mounted.

Types:

• Hub Motor: Mounted in the wheel hub (front or rear).

  Front Hub Motor

  Rear Hub Motor

• Mid-Drive Motor

Considerations:

• Efficiency: Mid-drive motors are generally more efficient and more torque.

• Application: Hub motors are good for flat terrain; mid-drive motors are better for hills and off-road.

3. Controller

Controls the speed of the motor

Key Functions:

• Regulates Power: Makes sure the motor gets the right amount of power.

• Safety Features: Overheat protection and low-voltage cutoff.

Considerations:

• Compatibility: Must be compatible with the battery and motor.

• Features: Advanced controllers have regenerative braking and customizable power settings.

4. Throttle

Description: Allows the rider to control the motor power directly, mounted on the handlebar.

Types:

• Twist Throttle: Like a motorcycle throttle, twisted to control power.

• Thumb Throttle: A lever pressed with the thumb to control power.

Considerations:

• Control: Throttles give direct control over the motor, useful for acceleration and quick speed adjustments.

5. Pedal Assist System (PAS)

Description: Assists the motor when you pedal, with adjustable assistance levels.

Key Components:

• Cadence Sensor: Checks to see if peddaling applies power

• Torque Sensor: checks to see if you are peddaling then applies power consistent with the amout of peddal power

Considerations:

• PAS is smoother than throttle-only systems.

6. Display

Description: Mounted on the handlebars, shows real-time information about the ebike.

Key Info:

• Speed: Current speed.

• Battery Level: Remaining battery capacity.

• Assistance Level: Current pedal assist level.

• Distance: Trip distance and odometer.

Types:

• Basic LCD: Shows basic info.

• Advanced LCD/LED: Has navigation, diagnostics and customizable settings.

7. Sensors

Description: Various sensors make the ebike function and safe.

Types:

• Speed Sensor:

• Torque Sensor:

• Cadence Sensor:

Considerations:

• Integration: Sensors should work with the controller and display for best performance.

Additional Components

**1. Brakes: Hydraulic or mechanical disc brakes are used for stopping power and reliability. **2. Wiring Harness: Connects all the electrical components. A good harness makes installation and maintenance easier. **3. Lights: Front and rear lights for visibility and safety.

Choosing the Right Components

• Riding Style: Think about your typical riding conditions (e.g. flat vs hills) and choose components that fit your needs.

• Budget: Higher end components are better and last longer but cost more.