Zero Maintenance Direct Drive Electric Dirt Bike - 36kW Peak Power, 640N.m Torque for Off-road Racing & Hill Climbing Electric Motorbike

Product Description

GMX Full-Size High-Performance Electric Off-Road Platform

GMX is a high-performance electric off-road motorcycle platform powered by a 36kW peak power axial flux motor, direct drive system, 5.5kWh swappable battery and full-size 21"/18" chassis design.
Designed for high-performance electric motorcycle applications, GMX delivers powerful acceleration, advanced handling and flexible platform architecture.

Product Highlights:

Peak Power: 36kW
Peak Torque: 165N·m
Battery Capacity: 5.5kWh Semi-Solid Lithium Battery
Wheel Configuration: Full-size 21"/18"
Suspension Travel: 300mm Front / 275mm Rear
Drive System: Direct Drive

Proprietary Engineering

Axial Flux Dual-Rotor Motor Technology

GMX is powered by Golden Motor's Axial Flux Dual-Rotor Motor technology, delivering high torque density, compact structure and powerful performance for high-performance electric motorcycles and off-road applications.

The direct drive system provides instant torque response with fewer mechanical components for efficient power transmission.

Motor Specifications:
Motor Type: Axial Flux Dual-Rotor Motor
Peak Power: 36kW
Rated Power: 11kW
Peak Torque: 165N·m

Direct Drive System

Gearless Direct Drive System
Less Maintenance · Higher Efficiency · Higher Reliability

Gearless direct drive system reduces mechanical losses and provides instant torque response with fewer moving parts.

Unlike traditional electric motorcycles using reduction gear systems, GMX adopts a direct drive architecture:
Traditional:

Motor → Reduction Gear → Chain → Rear Wheel

GMX:

Motor → Chain → Rear Wheel

Advantages:
Fewer mechanical components 

No reduction gearbox required
Reduced maintenance requirements 
Lower energy loss 
Faster torque response

5.5kWh Semi-Solid Lithium Battery System

GMX supports a 72V 5.5kWh semi-solid lithium battery system with high energy density, strong discharge capability and quick swap design for extended riding performance.

Battery pack configuration can be customized according to different project requirements.

Battery Performance:
5.5kWh Semi-Solid Lithium Battery
Quick Swappable Design
400A Continuous BMS Current
600A Peak BMS Current (up to 55s)
5C Continuous Discharge (60s)
7C Peak Discharge (10s)

High-Performance Motor Controller System

GMX is equipped with a high-performance PMSM motor controller system designed for high-power electric motorcycle applications.

Based on FOC vector control technology, the controller provides precise torque control, efficient power management and stable operation under demanding riding conditions.

Controller Features:

36kW Peak Power Capability

500A Continuous Current
FOC Vector Control Technology
Field Weakening Support
CAN Communication

Premium Off-Road Chassis Design

Built with a full-size 21"/18" off-road platform, premium suspension components and durable chassis structure, GMX provides excellent handling capability for demanding off-road environments.

Chassis Features:
21"/18" Wheel Configuration
37.5-inch Seat Height
300mm Front Suspension Travel
275mm Rear Suspension Travel

Low Cogging Torque

The unique design of axial flux motors enables them to produce lower cogging torque.
This is particularly beneficial in applications requiring smooth operation and precise control.

GMX Modular Platform — Flexible Configuration for Future Applications

GMX is designed as a versatile electric motorcycle platform with modular mechanical and electronic architecture.

The platform supports future upgrades and customized configurations across motor, battery and controller systems. 

Modular Design:

Motor Configuration

Flexible motor mounting design supports future powertrain upgrades.

Battery Flexibility

Battery compartment supports customized battery solutions.

Controller Configuration

Controller mounting area accommodates alternative controller solutions.

Applications

Applications

GMX is designed for next-generation electric mobility applications, including premium electric motorcycle brands, off-road performance markets, conversion projects and customized vehicle development.

Powered by axial flux motor technology, direct drive system and modular platform architecture, GMX provides a flexible high-performance solution for electric motorcycle products, prototype development and specialized mobility projects.

Race Tested. 1st Place.

In October 2022, a GMX pre-production unit entered the Smokey Road Hare Scramble in Williamstown, Kentucky, USA — and finished 1st Place with a lap time of 5:29. That race was the beginning, not the finish line. Since then, the GMX has gone through continuous rounds of improvement and refinement. The production unit available today is the result of everything learned since that podium finish.

Company Profile