Before paying for a sample, check who signs the contract and who will build the bicycle. Get one written model specification. Agree what the sample must show, how changes need approval, and which packing and market documents belong to the order.
Use the ten checks below to compare suppliers on the same basis.
Photos and a catalogue help you choose a starting model. Before ordering a sample, ask for the written build and a clear plan for checking it. Use the same brief for every supplier so that differences are visible.
Use a three-level evidence score
For each check, mark 0 if the answer is missing or contradictory. Mark 1 for a verbal answer. Mark 2 when a document, sample or process supports it. This is a buyer checklist, not a certification or supplier rating.
| Decision | Evidence to request | What the buyer is testing |
|---|---|---|
| Who signs and receives payment? | Legal entity name, address, contract party and matching payment instructions. | The commercial counterparty is clear and does not change between quotation, contract and payment. |
| Who performs each production step? | Named roles for product planning, frame supply, paint, assembly, inspection and packing. | The supplier explains its own role and production partners without implying ownership it does not have. |
| Which bicycle is being quoted? | Model code, wheel and frame direction, intended use, reference images and revision date. | Everyone is discussing the same platform rather than a similar-looking catalogue image. |
| What controls the specification? | Itemised BOM, artwork, geometry or size reference, permitted alternatives and approval owner. | Price changes and component substitutions cannot happen invisibly. |
| What will the sample prove? | Sample deliverables, known differences from production, inspection points and approval record. | The sample becomes a controlled reference instead of a one-off showpiece. |
| How is quality checked? | Incoming, assembly, function, finish and packing checks tied to the approved model. | The inspection plan follows the product risk and purchase specification. |
| Which market evidence applies? | Standard, report holder, laboratory, report number, date, tested model and configuration coverage. | A generic logo or component document is not mistaken for evidence covering the ordered bicycle. |
| How will the bicycle arrive? | Assembly level, carton, protection points, manuals, labels, accessories and loading plan. | The handover and landed product match the channel's service capability. |
| What happens after shipment? | Spare-parts assumptions, serial or batch records, issue owner and escalation route. | The project has a traceable support path rather than only a sales contact. |
| Can the order be repeated? | Version-controlled specification, approved artwork, sample record, inspection record and change log. | A repeat order can start from the same reference instead of rebuilding the conversation. |
1. Check the company and production roles
Ask which legal company issues the quotation, signs the contract and receives payment. Then ask who handles the frame, finish, assembly, inspection and packing. Partners may be involved; the roles should be clear.
NARVEK Bikes is operated by HORIZON (TANGSHAN) SUPPLY CHAIN MANAGEMENT CO., LTD. Review the company identity and actual production photographs as separate evidence.
2. Compare one written bicycle build
Send every supplier the same model, intended use, country, quantity and component brief. Include branding, assembly level, packaging and documents. Ask them to list any assumptions.
Different brakes, forks, wheels or battery systems mean you are comparing different builds. Resolve these differences before comparing quotations.
3. Record parts and approve changes
The bill of materials (BOM) is the component list for the build. Identify the parts clearly and agree which alternatives need approval.
- Record the original part and proposed replacement.
- Check fit, function, documents and packing where relevant.
- Agree any quotation or timing impact.
- Keep the written decision and revision date.
4. Define what the sample must show
Agree the sample configuration and note parts that differ from planned production. Review fit, component compatibility, finish, artwork, assembly and packing.
Record what is accepted and what must change. Use the pre-production checklist when the project is ready for production approval.
5. Connect inspection to the approved model
Ask which checks will compare the ordered bicycle with its specification and approved sample. Include relevant incoming parts, assembly, brake/wheel setup, electrical functions, finish and packing.
Name the person who records a problem and the person who can approve a correction. A generic checklist should not replace model-specific checks.
6. Verify the scope of standards and reports
Do not treat a logo, certificate photo or component report as automatic coverage for the complete bicycle. Ask for the applicable standard, report number, issuing laboratory or body, holder, test date, tested model and configuration. The destination market and actual SKU determine what evidence is relevant.
For context, ISO 4210-2:2023 addresses safety and performance requirements for common bicycle categories, while the U.S. Consumer Product Safety Commission points businesses to 16 CFR Part 1512 for bicycle requirements. Electric bicycle and lithium-battery projects add system and transport questions. These references help frame questions; they do not prove that a specific NARVEK or supplier model is covered.
7. Agree how the bicycle arrives
Confirm assembly level, protection points, carton, included parts, labels and instructions. Make sure the receiving business knows what it must assemble or check.
Review the packing process photographs and ask for the final model-specific packing details.
8. Keep decisions in writing
Use one contact for each open issue. Record the question, proposed change, decision and date. A quick reply is useful only when everyone can see what was agreed.
For a proposed brake, finish or packing change, check that the component list, artwork and quotation still describe the same build.
9. Use red flags as pause points
- The payee or contracting entity changes without a documented reason.
- Model photos are available but no model code or written specification is offered.
- Compliance is answered only with “CE available” or another label without report scope.
- The sample is described as “similar” without a list of differences.
- Component substitutions are treated as a production decision rather than a buyer approval.
- Factory ownership, capacity or customer claims cannot be separated from production-partner roles.
- Packaging and after-shipment responsibilities appear only after the product price is agreed.
10. Choose a useful next step
You do not have to place a production order to finish the review. Choose a document check, model quotation, sample review or independent inspection that answers the main open question.
State what the next step must deliver before starting it.
Frequently asked questions
What makes two OEM bicycle quotations comparable?
Both must cover the same model definition, frame and wheel direction, BOM, branding, packaging, assembly level, document scope, quantity and delivery basis.
Is a factory certificate enough to approve a bicycle supplier?
No. Check the holder, site, scope, date, issuing body and model relevance, then connect that evidence to the ordered specification, sample and inspection plan.
Should I reject a supplier that uses production partners?
Not automatically. Require transparent roles, a clear contracting entity, controlled records and named responsibility for every approval and change.
When should I arrange a third-party audit or inspection?
Consider it when order value, product risk, a new supplier relationship, destination-market obligations or unresolved evidence gaps justify independent verification.
What should be confirmed before paying for a sample?
Confirm the legal payee, model code, market, use case, reference specification, customisation scope, deliverables, known differences, document expectations and approval method.
Primary reference points
- ISO 4210-2:2023 — bicycle safety and performance requirements
- U.S. CPSC — Bicycle Requirements Business Guidance
- EUR-Lex — Regulation (EU) 2023/988 on general product safety
- IATA — lithium battery transport guidance
