Addmotor Debuts U-Trike U-750 with Dual‑Mode Tilting Design
Addmotor, a manufacturer specializing in advanced electric bicycle (e‑bike) platforms, has announced the official unveiling of the U‑Trike U‑750. The model represents a major kinematic departure from conventional rigid‑frame e‑bikes, adopting a central‑pivot steering architecture that separates the front steering assembly from the rear drive module. Designed to address the long‑standing “Stability–Agility Paradox,” the U‑750 employs a tilting‑mechanism structure that allows the chassis to lean laterally during directional changes, delivering the intuitive flow of a two‑wheeled bicycle while preserving the grounded stability of a multi‑wheel platform.
Pivot Dynamics and Centrifugal Force Management
At the core of the U‑750’s handling characteristics is its central‑pivot steering system. In conventional rigid‑frame electric tricycles, the chassis is fixed in a vertical plane, requiring the rider to absorb the outward centrifugal load during cornering. As speed increases, this lateral force can reduce traction or even cause inner‑wheel lift—an inherent limitation of non‑tilting three‑wheel designs.
The U‑750 overcomes this through a tilt‑enabled chassis integrated at the junction between the main frame and the rear axle module. This pivot allows the rider to lean the vehicle inward during a turn, shifting the center of mass toward the curve and counteracting centrifugal force. By enabling controlled lateral lean, the tilt‑steer system maintains full ground contact across all three tires, delivering the “pivot = freedom + stability” principle that enhances high‑speed cornering confidence and improves control on uneven terrain.
Two‑Mode Riding Architecture: Fixed vs. Tilting
To accommodate a diverse range of rider proficiencies and load requirements, the U-750 features a manual chassis locking system located on the handlebar. This enables two distinct operational profiles:
- Fixed Mode (Static Stability): The pivot joint is mechanically locked in a vertical orientation. In this configuration, the U-750 operates as a standard rigid-frame electric trike for adults, providing maximum static balance and a predictable, upright posture. This mode is specifically recommended for seniors, beginners, and female riders who prioritize stability during the initial learning curve or when transporting maximum cargo weight.
- Tilting Mode (Dynamic Agility): Unlocking the pivot joint facilitates unrestricted lateral chassis movement. This mode allows active riders with higher mobility to utilize the full leaning electric trike functionality. It offers a more responsive handling profile and increased cornering speeds, delivering the “soul” of a two-wheeled bicycle within the safety envelope of a three-wheeled base.
Propulsion and Power Modulation: Torque Sensing Integration
The Addmotor U-Trike U-750 is powered by a 48V 750W rear-mounted hub motor calibrated for high-torque output. A critical distinction in the U-750’s electronic architecture is the integration of a high-precision torque sensor. Unlike cadence sensors that provide motor assistance based on pedal rotation speed, the torque-sensing system measures the actual mechanical force applied to the pedals in real-time.
This precision is essential for a tilting mechanism trike, as it ensures motor output is smooth and proportional to rider input. This prevents the abrupt power surges that could disrupt vehicle balance during high-angle leaning maneuvers. Energy storage is provided by a 48V 20Ah Samsung battery, which is UL-certified under the UL-2849 standard to ensure thermal and electrical reliability. The battery supports an estimated range of 40 to 85 miles per charge, managed through the EB 2.0 platform.
Structural Engineering and Tire Contact Dynamics
The U‑750 utilizes a fat‑tire electric trike platform specifically selected for its stability characteristics during tilting. The vehicle adopts a unified wheel setup with identical 20″ × 4.0″ tires on both the front and rear, ensuring consistent handling behavior across all three contact points. This uniform tire sizing delivers predictable steering response, balanced traction distribution, and a naturally low center of gravity throughout the tilting motion.
4.0‑inch width tires are superior for leaning tricycles compared to the narrow‑tire models often found in European markets. Their larger contact patch increases friction and damping, making the leaning transition more stable and more forgiving for the rider. The tires also function as a secondary suspension layer, and when paired with the 80mm‑travel Addshox oil‑spring fork, they help absorb gravel, sand, and urban surface irregularities, allowing the vehicle to maintain smooth, controlled motion across varied terrain.
Addmotor U-Trike U-750 Technical Specifications
| Component | Technical Specification |
| Chassis Material | Reinforced 6061 Aluminum Alloy |
| Pivot Mechanism | Central Pivot (Dual-Mode: Fixed / Tilting) |
| Motor | 48V 750W Rear-Mounted Hub Motor |
| Energy Storage | 48V 20Ah Samsung UL-Certified Lithium-Ion |
| Assistance System | High-Precision Torque Sensor; 7 PAS levels |
| Electronic Platform | EB 2.0 Control System; 25A Controller |
| Operating Range | 40–85 Miles per charge |
| Wheel Configuration | Front: 20″ x 4.0″ / Rear: 20″ x 4.0″ Fat Tires |
| Braking System | Triple Mechanical Disc Brakes with Integrated Parking Brake |
| Suspension | Addshox Oil Spring Fork; 80mm Travel |
| Total Payload | 450 lbs (350 lbs Rider + 100 lbs Cargo) |
| Net Weight | 110 lbs (50 kg) |
| Safety Lighting | 40 LUX Headlight; EB 2.0 5-in-1 LED Taillight System |
Safety and Urban Utility Integration
The U-750 is designated as an urban cargo trike, featuring a structural payload capacity of 450 lbs. Safety systems include independent mechanical disc brakes on all three wheels and a dedicated parking brake for securing the tilting frame on inclines or during cargo loading. Visibility is managed by the EB 2.0 5-in-1 taillight module, which integrates brake lights, hazard lights, and turn signals into a unified system. Detailed telemetry—including battery voltage, motor output, and speed—is monitored via a 5-inch backlit LCD display.
Conclusion
The Addmotor U-Trike U-750 represents a kinematic evolution in the electric tricycle. By shifting from a static vertical frame to a multi-mode tilting architecture, the vehicle offers a solution to the traditional trade-off between stability and maneuverability. The integration of fat-tire contact dynamics with a central pivot joint addresses the specific requirements of urban logistics and personal recreation within an adaptable, high-performance platform.
About Addmotor
Addmotor is an electric bike manufacturer focused on the development of inclusive mobility solutions. The company’s engineering priorities include high-capacity battery integration, advanced electronic control systems, and stable, safety-oriented structural designs for a broad range of adult demographics.
Official website: https://addmotor.com/