Cargo E-Bike

Overview

A cargo e-bike is a load-carrying bicycle with electric pedal assistance, designed to replace short car trips for hauling groceries, freight, or passengers. This long-tail layout stretches the rear of the frame to create a deck behind the rider, letting the bike carry heavy loads low and centered for stable handling. A mid-drive motor multiplies the rider's pedaling effort rather than replacing it, so the bike feels like a strong tailwind that scales with how hard you push.

The structure is an extended Extended Cargo Frame with an integrated rear rack, fronted by a fat-tire-compatible suspension Suspension Fork. Propulsion comes from the Mid-Drive Motor Unit at the bottom bracket, fed by a 48-volt Integrated Battery Pack and commanded by the Motor Controller. The rider selects assist levels on the Display & Controls, and the Drivetrain carries the combined human and motor power to the rear wheel.

How it works

A strain-gauge torque sensor in the mid-drive measures pedal force and crank cadence many times per second. The controller reads that signal and modulates current through the motor's stator windings using field-oriented control, delivering up to 85 N·m through a planetary reduction gearset onto the chainring. Because the motor drives through the bike's own chain and cassette, it benefits from the gears: low gears multiply torque for steep climbs under load. The fat Fat-Tire Wheel pair adds grip and cushioning, while the four-piston Hydraulic Disc Brake units provide the stopping power a heavily laden bike demands, each lever carrying a cutoff switch that drops motor power the instant the rider brakes. A double-leg Double-Leg Kickstand holds the bike upright for loading, and the Cargo Accessories add panniers and footrests.