OEM Drive Architecture Guide

Choose mid-drive or hub-drive from the complete eBike program

A useful comparison starts with the target bike, duty cycle, integration constraints, service model and validation plan. It does not start and end with one peak specification.

A80 mid-drive and W200B hub-drive eBike motor system comparison for OEM buyers

Start with the platform requirements

The right architecture is the one that fits the complete OEM program and can be validated, serviced and supplied consistently.

Bike and duty cycle

  • City, trekking, road, trail, MTB or cargo category
  • Target market, route, gradient and total load
  • Expected riding behavior and service environment

Integration envelope

  • Frame, bottom-bracket, wheel and dropout constraints
  • Battery, controller, HMI, sensor and cable scope
  • Voltage, torque, protocol and packaging targets

Program conditions

  • Sample quantity and validation responsibility
  • Service model and spare-parts planning
  • Annual volume, launch timing and production RFQ route

Compare the engineering work, not only the motor type

Both architectures require a complete system review. The main integration questions are different.

Mid-drive evaluation route

A mid-drive places the drive unit at the bicycle drivetrain and should be reviewed with the frame interface, chain line, gearing, shifting under load, cooling, ride calibration and drivetrain service strategy. It is a relevant route when central mass and use of the bicycle gearing are important to the platform.

Hub-drive evaluation route

A hub-drive places the motor at the wheel and should be reviewed with wheel construction, axle and dropout interface, cable exit, connector protection, wheel removal and service procedures. It is a relevant route when direct wheel drive and a simpler main-frame architecture suit the product plan.

Complete component alignment

Motor selection cannot be separated from battery voltage and capacity, controller behavior, HMI and controls, sensors, protocol, charger and wiring. Confirm which party owns each component and interface before samples are built.

Validation and change control

Record the exact hardware, firmware and parameter configuration for every sample. Use the same reference during bench checks, bike integration, ride evaluation, issue closure and production RFQ preparation.

Questions OEM teams should resolve

Use these answers to frame the first internal review and supplier discussion.

Is one architecture universally better?

No. The decision should reflect the bike category, duty cycle, integration envelope, ride target, service model, component scope and validation plan.

What should be ready before samples?

Prepare the target market and bike category, expected load and route, frame and wheel constraints, performance target, component requirements, protocol, sample quantity, annual volume and launch timing.

Can KingClean help compare the routes?

OEM buyers can discuss A80 mid-drive, W200B hub-drive and broader Lexy eBike system routes. Final fit, sample configuration, file availability and commercial conditions are confirmed for the specific program.

Send the platform requirements

Email echo.li@kingclean.com with the bike category, market, load and route, frame and wheel constraints, voltage and torque target, battery/HMI/protocol needs, sample quantity, annual volume and launch timeline.

Email the eBike Team