Golden Motor Smart Pie 350-500W Hub Motor Kit (16"/20" Rear)

The Smart Pie External hub motor kit is a compact, mini Magic Pie built for small-wheel bikes. It comes as a 16" or 20" rear wheel, making it a great fit for folding bikes, BMX-style frames and trikes. It delivers 350W to 500W depending on your battery voltage. The brushless gearless motor is quiet and low maintenance, and the external controller is easy to install, replace or upgrade.

Approximate top speed: 15 to 20 mph (25 to 32 km/h) depending on battery voltage and wheel size. Speeds are approximate on flat ground and also depend on rider weight and terrain. You can set a lower limit with the optional USB programming cable.

Designed and supported by Golden Motor, with a 1-year warranty handled directly by our team.

Key Features

• 350W to 500W depending on battery: start on a lower voltage and upgrade later to suit local rules
• Brushless gearless motor: no gears to wear, quiet, efficient and long-lasting
• External controller: easy to install, replace and upgrade
• Strong climbing torque from rare earth magnets and quality MOSFETs
• Regenerative braking through the included power brake levers
• Programmable power and speed via USB cable

What's in the Box

• Smart Pie motorized rear wheel in your chosen rim size (16" or 20")
• External controller
• Power brake levers to cut the motor and engage regenerative braking
• Cruise control button
• Thumb or twist throttle with LED battery gauge
• All cables and connectors

Battery and charger are not included. Shop e-bike batteries.

Specifications

• Motor: brushless gearless hub motor
• Controller: external, programmable
• Power: 350W to 500W depending on battery voltage
• Approximate top speed: 15-20 mph (25-32 km/h)
• Position: rear
• Wheel sizes: 16" or 20"

Recommended Add-Ons

• Rear torque arm, recommended for safety
• USB programming cable for the external controller (software download)

Installation and Support

Guides: External Hub Kit Installation, Programming the External Controller and Troubleshooting.