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Yamaha eBike Systems

   Words by Beth Noy

   on 14/02/2017 15:59:00

Yahama eBike Systems come in two different models and can be found on a range of electric mountain bikes giving different performance and price points to suit everyone!


5 Yamaha Riding Modes To Choose From

Both Yamaha eBike systems come with 5 power modes to choose from that you can change as you ride, giving the perfect assistance when you need it. They also feature a walk assist mode making it easier to push your bike uphill when you need it:

  • OFF: Allows you to ride without power assist while switch functions remain enabled.
  • +ECO: Range of +Eco mode will be approximately 30% longer than Eco mode.
  • ECO: Saves energy for an extended cruising range. Best used when cruising on a flat road.
  • STD: Satisfies both power and cruising range. Recommended for daily use.
  • High: Provides a constant and powerful assistance. Perfect for riding uphill.


Yamaha eBike PW Series

The Yamaha PW series is designed around being "smooth and powerful". While providing a smooth electric-assist ride, the Yamaha systems are equipped with powerful support which gives a natural assist feel, even in the highest speed range.  This is thanks to the "triple sensor system" that has been part of Yamaha's development philosophy from the start. The three sensors refer to:

  1. A torque sensor that detects pedalling power
  2. A speed sensor that detects the bicycle's speed
  3. A crank sensor that detects the number of rotations through pedalling.

The sensors instantly detect the running conditions and the movement of the rider with precision, allowing for a smooth and powerful assist.

Yamaha eBike PW Series Drive Unit

  • Centre mount unit (bottom bracket motor)
  • Support up to 25km/h
  • Motor Rated power: 250W
  • Motor Peak torque: 80 Nm
  • Motor Continuous maximum torque: 70 Nm
  • Motor Direct transmission of the motor power to the crankshaft
  • Sensors: Torque sensor, speed sensor, crank sensor
  • Weight: 3.5kg (excl. Drive Sprocket)

Yamaha eBike PW Series Display Unit

There are two types of main switch available for the Yamaha PW Series unit; the LED 3-way digital display main switch and the LCD multi function Drive Controller.


The LCD multi function Drive Controller is designed for all forms of riding. The newly adopted vertical display makes information easily visible. Attachment is also ergonomically designed, with the display on the centre of the handle bars and switches adjacent to the hands. The display can be controlled without taking your hands off the handle bars, resulting in a safer ride, and smoother control of the switch.

  • LCD multi function Drive Controller
  • Drive control: 4 selectable assist modes
  • Battery capacity indicator: 10 scale bar Digital display (in %)
  • Assist power meter
  • Cycle computer
  • Range meter
  • Cadence meter
  • Clock
  • Removable display
  • USB connector is added: 5V electric power can be supplied to connected device & Parameter writing tool can be connected.


LED 3-way digital display main switch

  • Drive control: 3 selectable assist modes
  • Battery capacity indicator: Digital display (in %)
  • Speedometer
  • Range meter


Yamaha eBike PW-X Series

The PW-X System is the top end Yamaha eBike system and can be found on higher end electric mountain bikes. “Being at one with the machine” is Yamaha’s philosophy of development when making this unit making ride and machine truly unite as one.

  • Compact and lightweight: Dropping 380g changes the ride. A light weight, compact drive unit
  • High output: supplies the desired power when needed
  • Quick Response: Updated mechanical components and control program realize previously inexperienced "Best Manoeuvrability"

Yamaha eBike PW-X Series Drive Unit

  • Drive unit type: Center Motor
  • Weight: 3.1 kg
  • Rated power: 250[W]
  • Max. torque: 80 Nm* (EXPW mode) / 70 Nm (High/STD/Eco/+Eco)
  • Max. cadence: 120 rpm* (EXPW mode) / 110 rpm (High/STD/Eco/+Eco)
  • Max support Speed: 25 km/h

Yamaha eBike PW-X Series Display Unit

Yamaha have recently updated the interface of their PW-X display unit so it’s simple, tough and located neatly on the bars so you can concentrate on just the ride. In the operation system, Yamaha have introduced a new, ergonomic switch that maintains high operability during any type of riding. This is married to the LED Assist Mode Indicator that enables you to check the selected mode instantly even during hard riding.





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