The rear motor controller B manufactured by Langfeite is engineered for high-current dual-motor configurations on Langfeite electric scooter platforms. It regulates torque distribution, speed control and regenerative braking while interfacing with the vehicle CAN and power networks to maintain stable drive performance under variable loads. The module is designed for robust thermal performance and secure mounting on the rear assembly of the H1 dual system. Plugging into the main harness with OEM connector footprints, the unit matches original pinouts and mechanical fastenings for straightforward replacement. Diagnostic signals and safety interlocks are supported to ensure coordinated operation with the display and battery management systems. Compatible Models: H1 .faq-accordion { max-width: 900px; margin: 40px auto; } .faq-item { border-bottom: 1px solid #ddd; } .faq-item input { display: none; } .faq-item label { display: flex; justify-content: space-between; align-items: center; padding: 16px; cursor: pointer; font-weight: 600; background: #f9f9f9; } .faq-item label::after { content: "+"; font-size: 22px; transition: transform 0.3s ease; } .faq-item input:checked + label::after { content: "−"; } .faq-content { max-height: 0; overflow: hidden; transition: max-height 0.35s ease; padding: 0 16px; } .faq-item input:checked ~ .faq-content { max-height: 500px; padding-bottom: 16px; } .faq-content p { margin: 12px 0; } Shipping France Standard: €8.99 (Free over €149) Delivery time: 3–5 working days France (Express) Price: €12.99 Delivery time: 2–3 working days Europe & International From €11.99 Delivery time: 3–7 working days Price & eligibility calculated at checkout Please confirm compatibility with your electric scooter model before ordering to avoid installation issues.