OEM/ODM procurement guide
Custom E-Bike Manufacturing: From Brief to Bulk Order
Choose what to customize, compare the proposed build and approve the sample before placing a bulk order.
Start with the closest suitable platform
If an existing e-bike already fits your customers, begin with that model and a written change list. Compare the work required for your branding, selected components and packaging before paying for a new frame or tooling.
Before bulk production, approve the actual sample configuration, inspection criteria and included documents. Match the production battery, controller and charger to the approved sample record, and approve substitutions in writing.
1. Write a Brief the Manufacturer Can Quote
Send the destination country, intended use, preferred model or drawings, order quantity and requested changes. Describe the rider, load, route and charging access so the manufacturer can propose a build and identify what still needs engineering review.
For a folding e-bike, specify the storage space and how the rider will carry or charge it. For a loaded commute, describe the load, daily route and service needs. These requirements help you choose a base model before changing the battery, frame or accessories.
Information to Include in the Project Brief
- Destination country, sales channel and intended road or off-road use.
- Product category, usable pedals, throttle behavior, target speed and rated power.
- Rider and cargo mass, road surface, grade, climate and daily distance.
- Battery chemistry, voltage, usable energy target, charging method and removal strategy.
- Frame style, wheel/tire size, brakes, suspension, lighting and load interfaces.
- Branding, colors, logo process, packaging box, manual and shipping carton.
- Required test or certification route, launch date, first order and annual forecast.
- After-sales model, spare-part stocking and local technician capability.
2. Agree Who Develops the Bike
If you supply drawings and a component specification, agree which details the manufacturer may change and who approves alternatives. If you supply a market brief, agree who develops the design, owns the tooling and pays for sample revisions.
An existing platform can also be adapted for a private-label order. Separate the parts that remain standard from the changes to appearance, components or structure. A change to the battery enclosure, for example, may involve more engineering than a new colour and decal set.
Suppliers use OEM and ODM differently. Put the engineering work, approvals and ownership in writing; the OEM and ODM comparison explains the responsibility split in more detail.
3. Agree the Work and Approval at Each Stage
| Stage | Buyer decision | Supplier deliverable to request | Do not move on when |
|---|---|---|---|
| Project brief | Where and how the bike will be used | Base-model proposal and questions about the brief | The destination, intended use or required vehicle category is unclear |
| Development scope | Existing platform, component changes or a new design | Standard and changed parts; engineering, tooling and ownership scope | The parties disagree about who supplies drawings or approves changes |
| Quotation | Which proposal covers the required build and work | Identified configuration, itemised charges, exclusions and timing assumptions | Battery, charger, included work or one-off charges are unspecified |
| Sample build | Whether the delivered sample represents the quoted bike | Sample ID, fitted component list and any temporary substitutions | The sample differs from the proposal without an agreed explanation |
| Sample approval | Approve, accept listed deviations or request corrections | Recorded checks, results, supporting evidence and unresolved issues | A required check fails or the configuration cannot be identified |
| Production release | Whether the approved build is ready for the bulk order | Final configuration, material readiness, inspection and packaging plans | Unapproved parts, artwork or safety-critical questions remain |
| Shipment release | Whether the batch meets the agreed release conditions | Inspection record, packing details and matching shipment documents | Unresolved defects or document mismatches prevent acceptance |
4. Compare Customization Options Before the Quote
Ask the manufacturer to price an identified base model and list the requested changes separately. A quote for a visually similar bike is not enough to compare battery systems, component versions or development work.
| Requested change | What needs review | What the quote should identify | What to approve on the sample |
|---|---|---|---|
| Colour, logo, decals and packaging | Finish, artwork placement, print method, label language and packaging quantities | Accepted artwork, colour split, included branding work and any separate setup charges | Colour and finish reference, logo position, label content and carton artwork |
| Battery, motor, controller, charger or other components | Electrical compatibility, space, mounting, wiring, controls and effects on testing or service | Component references, proposed alternatives, included tests and any unresolved compatibility questions | The fitted parts and settings, safe charging arrangement, service access and agreed functional checks |
| New frame, geometry, bodywork or load-carrying structure | Drawings, interfaces, tooling, assembly, load requirements and validation work | Engineering and tooling scope, prototype stages, ownership and revision charges | Drawing revision, dimensions, rider fit, accessory interfaces and agreed structural evidence |
Compare vehicle unit price, branding/setup, engineering/tooling, samples/revisions, testing, packaging/spares and transport on separate lines. Mark each as included, separately charged or not quoted. Confirm the shipping term and destination before comparing delivered costs.
A distributor wants an existing folding e-bike in its own colour, with decals, a branded carton and a different battery capacity. It sends both suppliers the same destination, base model, order quantity and change list. The replies below are illustrative, not Jimsen quotations or a customer case.
| Point to compare | Reply A | Reply B | Buyer decision |
|---|---|---|---|
| Battery change | Lists capacity, but no proposed pack, controller or charger references | Identifies the proposed parts and lists compatibility checks still required | A is not yet comparable. B can proceed to technical review, not automatic approval |
| Branding and packing | Says “custom logo”; carton artwork and setup charges are unspecified | Separates decals, finish and carton work, including any setup charges | Request A’s missing scope before comparing the totals |
| Sample and revisions | Gives a sample price without saying which changes it includes | Lists the sample build, included work and how further revisions are charged | Compare the same sample scope; retain any unresolved revision costs |
Keep A pending until it identifies the missing configuration and charges. Review B’s proposed parts and evidence before ordering the sample. A more complete quotation makes the offer easier to assess; it does not prove that the changed battery fits or that the bike passes the required checks.
Keep One Agreed Configuration Record
- Base model, drawing revision and component list. A bill of materials (BOM) identifies the parts used for the build.
- Motor, battery, battery-management system, controller and charger references, plus the agreed settings.
- Dimensions, load interfaces and any parts that remain temporary on the sample.
- Colour, finish, artwork, labels, manual language and packaging revision.
- Open questions, proposed substitutions and the person responsible for approving each change.
Jimsen supports model-specific design, tooling and vehicle-integration review through its OEM/ODM service. The factory page shows manufacturing facilities and process photos; a project still needs its own configuration and inspection requirements.
5. Approve the Exact Sample Configuration
Record the sample ID and the parts fitted to it. Photograph component labels and note temporary parts before testing. The approved production reference, often called the golden sample, must match the build you accept.
Use one sample record with the agreed check, acceptance criterion, observed result, photo/video or document reference, and any open issue. Set the criteria before testing; the values depend on the selected configuration and intended use.
| Check | Record | Hold approval when |
|---|---|---|
| Build identity | Sample ID, drawing and software revisions, plus the fitted motor, battery, controller and charger references | A fitted part is unidentified or differs from the quoted build without approval |
| Fit and operation | For a folding model, fold/unfold it and record lock engagement. For removable charging, check battery access and removal. Record rider fit, controls and brake checks using the agreed method | The folding lock does not engage, access prevents the intended use, or a required functional check fails |
| Range and charging | Battery and charger identity, charging indications and agreed operating checks. For range, record load, route, surface, assist setting and start/end battery state | The charger does not match the agreed build, an operating check fails, or the claimed range has no matching test conditions |
| Branding and packing | Colour and finish reference, artwork, labels, manual language, accessories and carton contents | The finish, documents or included items differ from the approved specification |
| Local service | Part identifiers and access for the agreed service work. For a fault, retain photos/video and any available diagnostic code | A required replacement part cannot be identified or the agreed service task cannot be carried out |
Write the result as approved, approved with listed deviations, or not approved. Give each unresolved item an owner and a next review date. Keep bulk-production approval on hold until required corrections are resolved or the buyer accepts the listed deviations.
6. Prepare the Build for Production
Before releasing the bulk order, review the factory’s material readiness, assembly instructions, inspection criteria and packaging plan against the approved sample. Resolve proposed part substitutions before production.
| Control layer | Purpose | Examples |
|---|---|---|
| Incoming inspection (IQC) | Prevent unsuitable parts from entering production | Frame dimensions, battery identity, controller version, brake and tire checks |
| In-process control | Detect assembly drift early | Torque, harness routing, brake setup, wheel and body assembly |
| 100% final inspection | Check every completed vehicle | Function, appearance, quality, lights, controls and visible assembly |
| Batch-level inspection | Support buyer acceptance | Agreed AQL sample, project-specific tests and documentation review |
| Shipment release | Confirm packing and documents | Accessories, manuals, cartons, weight, labels and loading records |
Jimsen’s public commitment is that every completed vehicle undergoes a 100% final functional, appearance and quality inspection. Additional batch-level inspection can be performed under agreed AQL criteria and customer requirements. These are complementary controls; an AQL sample does not replace end-of-line inspection of every vehicle.
7. Agree MOQ, Timing and Ownership
Jimsen uses a flexible, project-negotiated MOQ. The economical quantity depends on the base model, component minimums, color splits, printed packaging and whether dedicated tooling is required. Samples are charged; the sample fee can be credited against a bulk order under the commercial agreement.
A new-product development program is typically planned around three months when the scope, technical route and buyer approvals remain controlled. Mass production is a separate schedule. Jimsen confirms the project-specific production slot after the final configuration, material position, approval status, current factory loading and season are known. The quotation should state the lead-time trigger and identify any long-lead components.
| Commercial point | Recommended written rule |
|---|---|
| Lead-time start | Name the trigger: deposit, approved sample, frozen specification and artwork completion |
| Sample fee | State price, freight, revision scope and bulk-order credit |
| Change requests | Record cost, test and schedule impact before approval |
| Dedicated tooling | Identify owner, storage, maintenance, access and end-of-life handling |
| Confidentiality | Sign NDA and define protected data before sensitive disclosure |
| Inspection | Define standards, defect classes, sample plan, rework and release authority |
| Warranty | Define coverage, start date, exclusions, evidence and remedy |
For Jimsen projects, dedicated customer-funded molds belong to the customer under the agreed contract and are not sold or used for other customers. The after-sales process should request model and serial information, a clear fault description and preferably video or photos; remedies can include replacement parts and remote technical guidance under agreed warranty terms.
The buyer’s production-release checklist
- Sample approval: the final configuration record and any accepted deviations are signed off.
- Market evidence: required tests and documents match the intended build and destination.
- Factory readiness: materials, assembly instructions, inspection criteria and packaging are ready.
- Order terms: the included work, payment and lead-time triggers, spare parts and warranty responsibilities are agreed.
- Shipment release: carton contents, inspection evidence, shipping documents, trade term and release authority are confirmed.
Keep a Written Change Record
For each change after sample approval, record the requested change, affected part or document revision, cost and timing impact, and named approver. Obtain written approval before the supplier uses the changed part or file in production.
Questions buyers ask
Can Jimsen manufacture from a buyer-supplied BOM and drawings?
Yes. Send the drawings and bill of materials (BOM) for review. Jimsen can assess the package and identify open engineering questions before agreeing the sample build.
Does every custom configuration already have certification?
No. Match the required testing and documents to the final model, configuration and destination. A report for a similar bike does not establish approval for a changed battery, controller, charger, motor or software version.
What happens if the sample is not satisfactory?
List each mismatch against the agreed specification. Agree the correction, any extra sample charge and the next review date. Hold bulk-production approval until required corrections are resolved or the listed deviations are accepted.
Send a Brief for Your Custom E-Bike Project
Copy the enquiry below into your email and fill in the fields. Write “not decided” where you need a proposal.
Subject: Custom e-bike enquiry
Hello Jimsen,
Please review the project below. I would like to confirm the build, quotation and sample plan.
Destination country and sales channel:
Preferred model, photos or drawings:
Intended use, rider/load, route and charging access:
First-order quantity:
Requested changes, colours and logo artwork:
Required documents and manual language:
Target launch date:
Items not yet decided:
Please include the following in your reply:
- Proposed model and component configuration.
- Accepted changes, exclusions and open compatibility questions.
- Itemised quotation, separating unit price and one-off charges.
- Sample configuration, charges and revision terms.
- Documents available for the proposed build and any testing still required.
- MOQ and timing assumptions, including what must be approved before the schedule starts.
Jimsen can review this brief and propose a configuration and paid-sample scope. The response should identify unresolved items so you can decide what to confirm before ordering.
Review Jimsen’s customization service · View the factory · Send your project brief