| Quality Management | Valid ISO 9001 certification with a scope covering kart design, manufacturing, or vehicle assembly. | Check certificate validity, certification body, factory address, covered processes, internal inspection procedures, and corrective-action records. | 12% | Essential | 5 = Valid and independently verifiable; 3 = Documented internal system only; 1 = No consistent quality system. |
| Product Safety Design | Documented risk assessment covering steering, braking, drivetrain, rotating parts, rollover risks, hot surfaces, and user access points. | Review technical drawings, safety guards, emergency-stop design, braking redundancy where applicable, seat-belt anchorage, and operating instructions. | 15% | Essential | 5 = Formal risk assessment and tested safeguards; 3 = Basic safety features without complete records; 1 = Unresolved hazards. |
| Market Compliance | Conformity documentation matched to the destination market and product configuration. | Request declarations, technical files, user manuals, warning labels, testing reports, and evidence that documentation matches the supplied model. | 12% | Essential | 5 = Complete destination-market file; 3 = Partial documentation requiring buyer work; 1 = Unsupported compliance claims. |
| Electrical System | For electric karts, electrical design should be documented against applicable machinery and electrical-safety requirements, including appropriate protection against shock, overcurrent, and unintended start-up. | Check wiring diagrams, insulation protection, fuse or circuit-breaker selection, charger specifications, IP ratings where relevant, emergency isolation, and component traceability. | 10% | If Electric | 5 = Complete drawings and test records; 3 = Functional system with limited documentation; 1 = Unsafe or undocumented modifications. |
| Battery and Shipping Safety | Lithium battery shipments should have applicable UN 38.3 test evidence and correct dangerous-goods packaging and transport documentation. | Verify battery chemistry, nominal voltage, capacity, battery-management system, charger compatibility, UN 38.3 summary, labeling, and transport declarations. | 10% | If Electric | 5 = Complete battery and logistics file; 3 = Basic battery information only; 1 = Missing or inconsistent shipping documentation. |
| Frame and Welding Quality | Production should follow approved drawings, welding procedures, fixture controls, and traceable inspection records. | Inspect weld penetration and appearance, tube material records, jig usage, weld-repair procedures, frame alignment checks, and nonconformance records. | 10% | Essential | 5 = Controlled welding and dimensional inspection; 3 = Acceptable workmanship without full traceability; 1 = Visible structural defects. |
| Braking and Steering Performance | Repeatable braking and steering performance under the kart's declared load, speed, surface, and operating conditions. | Review test procedures for stopping distance, brake fade, pedal return, steering play, alignment, tire grip, and fastener retention. | 12% | Essential | 5 = Recorded tests under defined conditions; 3 = Basic functional checks; 1 = Unstable or inconsistent control performance. |
| Component Traceability | Critical parts should be identifiable by specification, supplier batch, or production lot. | Check records for brakes, steering components, tires, batteries, motors, controllers, chargers, fasteners, and safety switches. | 7% | Recommended | 5 = Complete lot or batch traceability; 3 = Traceability for selected parts; 1 = No reliable component records. |
| Factory Capacity | Capacity should be demonstrated through equipment, staffing, line layout, and historical production records rather than quoted volume alone. | Verify monthly capacity, peak-season planning, welding and painting equipment, assembly stations, inspection staff, subcontracted processes, and lead-time controls. | 6% | Recommended | 5 = Capacity supported by records and resources; 3 = Capacity depends on subcontractors; 1 = Capacity claims cannot be verified. |
| Quality Control Before Shipment | Every kart should pass documented incoming, in-process, final assembly, and pre-shipment checks. | Request inspection checklists covering torque, tire pressure, brake adjustment, steering alignment, electrical functions, battery charging, labels, and packaging. | 8% | Essential | 5 = 100% final inspection with retained records; 3 = Sampling-based inspection; 1 = Visual check only. |
| Customization Control | Engineering changes should be controlled through approved drawings, revision numbers, sample approval, and written change records. | Evaluate ability to customize dimensions, colors, decals, power systems, safety features, packaging, manuals, and market-specific labels without losing configuration control. | 5% | Recommended | 5 = Formal engineering-change process; 3 = Customization available but loosely documented; 1 = Uncontrolled changes. |
| Packaging and Export Readiness | Packaging must protect the kart during multimodal transport and support efficient loading, unloading, and storage. | Check crate or carton strength, moisture protection, spare-parts packing, loading plan, container utilization, packaging photos, and shipping marks. | 5% | Recommended | 5 = Validated export packaging and complete documents; 3 = Standard packaging requiring buyer upgrades; 1 = Frequent transport damage risk. |
| After-Sales Support | Structured technical support with spare-parts identification, troubleshooting procedures, warranty terms, and response-time commitments. | Confirm parts lists, exploded diagrams, service manuals, warranty exclusions, replacement-part availability, remote support, and escalation procedures. | 5% | Recommended | 5 = Complete service system and parts support; 3 = Basic warranty and parts supply; 1 = No defined support process. |
| Commercial Reliability | Pricing, minimum order quantity, lead time, payment terms, warranty coverage, and change costs should be stated in the sales contract. | Compare formal quotations, proforma invoices, delivery schedules, inspection rights, remedy clauses, spare-parts pricing, and responsibility for compliance work. | 3% | Recommended | 5 = Clear and consistent contract terms; 3 = Several items remain negotiable; 1 = Material terms are undocumented. |