| 1 | Frame Strength | Inspect the frame material, weld quality, joint design, corrosion protection, and areas supporting the rear axle or cargo box. | Look for reinforced joints, continuous and even welds, corrosion-resistant finishing, and a clearly stated maximum gross vehicle weight. | A strong frame improves durability, handling, and resistance to fatigue under repeated loads. | Request frame drawings, weld photographs, and the rated gross vehicle weight before ordering. |
| 2 | Load Capacity | Confirm whether the published rating includes the rider, passengers, cargo, battery, and accessories. | Choose a model with at least a 15–20% capacity margin above the expected everyday load; never exceed the manufacturer’s stated limit. | Overloading can increase braking distance, reduce stability, accelerate wear, and overheat the motor or controller. | Calculate the heaviest normal payload and compare it with the complete-vehicle load rating. |
| 3 | Stability and Wheelbase | Evaluate track width, wheelbase, center of gravity, axle design, steering response, and resistance to tipping during turns. | A wider rear track and a low, well-distributed cargo position generally provide better stability; test slow and moderate-speed cornering safely. | Three-wheel vehicles can become unstable if loads are placed high or if turns are taken too quickly. | Test the tricycle with representative cargo and verify that the load is centered and secured. |
| 4 | Motor and Hill Performance | Check continuous motor power, peak power, torque, controller rating, and the manufacturer’s specified gradeability. | Compare performance using the intended total load and slope; continuous power is more useful than peak power for sustained hills. | Peak ratings may last only briefly, while continuous output affects real-world climbing and thermal performance. | Ask for a loaded hill test or performance data at the maximum intended payload. |
| 5 | Battery Capacity and Safety | Verify battery voltage, ampere-hours, usable energy, cell protection, charging temperature limits, and replaceability. | Approximate energy is calculated as volts × ampere-hours; compare usable range under load rather than an unloaded laboratory claim. | Battery capacity determines operating range, while protection systems help reduce overcharge, over-discharge, and thermal risks. | Request battery test documentation, charger specifications, and a clear replacement plan. |
| 6 | Braking System | Check front and rear brakes, parking brake, brake cut-off function, cable or hydraulic condition, and accessibility of replacement parts. | Brakes should stop the fully loaded vehicle in a controlled manner on the intended surface and remain effective after repeated use. | Additional mass increases stopping distance and places greater heat and wear demands on the braking system. | Perform loaded braking tests on dry and slightly sloped surfaces in a controlled, legal area. |
| 7 | Rider Comfort and Ergonomics | Inspect seat width, back support, handlebar position, step-through height, pedal position, suspension, and vibration control. | The rider should sit upright with relaxed shoulders, a slight bend at the elbows, secure foot placement, and easy access to controls. | Good ergonomics reduce fatigue and improve steering and braking control during longer trips. | Have the primary rider complete a 20–30 minute test ride before purchase. |
| 8 | Tires, Wheels, and Ground Clearance | Confirm tire size, load index, tread pattern, tube or tubeless construction, rim strength, spare availability, and clearance. | Use tires with a load rating above the actual wheel load and select tread appropriate for paved roads, gravel, or mixed surfaces. | Correct tires improve grip, comfort, puncture resistance, and control over uneven surfaces. | Check tire markings and ensure replacement tires and tubes are available in the destination market. |
| 9 | Lighting and Weather Protection | Review headlamps, tail lamps, indicators, reflectors, horn, fenders, waterproof connectors, and enclosure protection. | Lighting should be visible from the required distances in the destination market; electrical components should have documented water-resistance protection. | Visibility improves road safety, while weather protection helps prevent electrical faults and corrosion. | Check local lighting, reflector, electrical, and road-use requirements before importation. |
| 10 | Serviceability and Compliance | Assess spare parts, service manuals, warranty terms, diagnostic support, charging compatibility, and required vehicle certification. | Confirm compatibility with the local electrical supply and verify applicable rules for speed, power, dimensions, lighting, brakes, and road classification. | Local compliance and accessible parts reduce downtime, import risk, and long-term ownership costs. | Obtain a parts list, warranty procedure, user manual, compliance documents, and after-sales contact details in writing. |