Yamaha Power Assist Electric Bicycle: Smart Riding for Modern Commuters

Yamaha Power Assist Electric Bicycle

 

Available Colors

Painted Desert

Shiver White

Urban Sage

 

Size Options

Small (S): 54 cm

Medium (M): 57 cm

Large (L): 60 cm

 

MSRP

$2,999

 

Total Weight

Small (S): 52.2 lbs

Medium (M): 52.4 lbs

Large (L): 52.6 lbs

 

Power, Precision, and Smart Control: A Closer Look at the Yamaha PWSeries ST E-Bike System

When it comes to electric bike performance, the details matter. From motor torque to battery efficiency and rider-facing controls, every component plays a role in how the bike feels on the road. Let’s break down what makes this Yamaha-powered setup a standout.

 

⚙️ Motor: Yamaha PWSeries ST

At the heart of the system is the Yamaha PWSeries ST motor, designed for smooth, responsive, and natural pedal assistance.

Mounted using a 3-bolt interface with a square taper spindle, this mid-drive motor delivers a well-balanced ride feel while keeping weight centralized. Weighing in at just 7.71 pounds, it packs impressive power without bulk.

 

Key performance highlights:

Rated Power: 250W (nominal), with up to 500W max

Maximum Torque: 70Nm for confident climbing and quick acceleration

Cadence Support: Up to 110rpm, ideal for high-tempo pedaling

Top Speed Support: Up to 28mph

Support Modes: AUTO, ECO+, ECO, STANDARD, and HIGH

The Quad Sensor System, paired with a rear hub speed sensor, continuously monitors rider input to deliver assistance that feels intuitive rather than robotic.

 

🎛️ Control Switch & Multi-Function Computer

Yamaha’s control interface keeps everything simple, visible, and rider-friendly. The four-level power control switch lets you adjust assist on the fly, while the multi-function computer tracks your ride in real time.

 

Included display functions:

Current, average, and maximum speed

Trip distance and total odometer

Cadence tracking

Battery capacity displayed as a percentage

Stopwatch and time adjustment

Distance unit selection

For visibility and convenience, the system also features:

LED headlamp on/off control

Power-level LED toggle

Three-color LED indicator showing power assist level at a glance

 

🔋 Battery: Yamaha Lithium-Ion Power Pack

Powering the ride is a 500Wh, 36V Yamaha lithium-ion battery, engineered for reliability and long-term performance.

The battery slides into a side-exiting dock station with an anti-vibration mounting plate, ensuring stability even on rough terrain. Built-in diagnostics and a charge-life indicator help you stay informed about battery health.

Battery specs at a glance:

Capacity: 500Wh

Voltage: 36V

Weight: 6.61 pounds

Charge Time: Approximately 4 hours

 

🚴  Thoughts

This Yamaha e-bike system strikes a thoughtful balance between power, efficiency, and rider control. With intelligent sensor technology, a versatile motor, and a dependable battery, it’s designed to support everything from daily commutes to longer weekend rides — all while feeling smooth and natural underfoot.