A model name or stamped reference is a useful starting point, but it does not confirm that a rear swingarm will fit a particular motorcycle version. Pivot width, pivot-bore details, axle slots and suspension or brake mounts can vary. For a motorcycle swingarm wholesale RFQ, identify the exact component, send the vehicle details and mounting evidence, and ask the seller to confirm the application in writing before approving a bulk order.
Quick answer: state whether you need a complete swingarm, a pivot shaft or a bushing; provide make, model, year, market and engine or frame code; attach clear photos and a drawing or measured dimensions; list the required quantity and destination; then request written confirmation of fitment, included parts, MOQ, current availability, packing and freight.
Are you quoting a complete swingarm, a pivot shaft or a bushing?
Use the exact component name before comparing prices. A complete rear swingarm assembly, its pivot shaft, a center bushing, a front or rear wheel axle and their related hardware are different items. A listing that groups several configurations may require a separate quote line for each part and each application.
Start with the Swingarms & chassis category, then name the exact listing or attach a photo of the existing part. If you are sourcing an axle rather than the swingarm assembly, see the motorcycle axle wholesale RFQ checklist so the quote separates those component types.
Which motorcycle and market details should accompany the request?
Send the make, exact model, model year, sales market and engine or frame code when available. Add a photo of the vehicle identification label or the relevant page from a parts diagram if you have it. “CG style,” engine displacement or a broad model family can help identify a starting point, but should not be treated as proof that the mounting interfaces match.
- Make, model, year and market or version.
- Engine or frame code, if shown on the vehicle or its documents.
- The exact item requested: complete arm, pivot shaft, bushing, spacer or axle.
- Part number or reference as printed or stamped; say when it is unreadable.
- Photos from both sides and of each mounting point, with a ruler or caliper scale where practical.
Which mounting measurements should the seller confirm?
Ask the supplier which interfaces apply to the listed design and how each measurement is taken. Do not copy a dimension from another model or assume every swingarm uses the same interfaces. A drawing with labeled measurement points helps both sides compare the same surfaces.
| Interface | What to identify | Evidence to send or request |
|---|---|---|
| Frame pivot | Applicable pivot bore or bushing arrangement and the measured width between mounting faces | Dimensioned drawing or photos showing the measurement endpoints |
| Pivot shaft | Outside diameter, overall length, shoulder or thread locations when relevant | Close-up photos and a written dimension list |
| Rear axle interface | Axle-slot range, adjuster arrangement and any separate blocks or spacers | Rear-view photo and the supplier-confirmed fitment dimensions |
| Suspension or brake mounts | Mount location and spacing for the components used on that exact version | Side-view drawing; note any interface that is not present on the part |
| Assembly and packing | Whether the dimensions describe the item, a set or the shipping package | Separate item dimensions and outer-carton dimensions and weight |
How should a reference number or a catalogue dimension be used?
Treat a part number or marketplace reference as an identification clue, not as a fitment or origin guarantee. For example, the W100S rear swingarm listing includes the reference 52200-KTL-740ZA. The listing states that this reference does not certify genuine OEM manufacture and that key mounting dimensions are not supplied. Ask for the current drawing and written application confirmation before selecting a quantity.
The CG-style rear swingarm listing shows a 40 × 20 × 10 cm dimension line, while the saved record does not state whether those values describe the item or its package. Confirm the measurement scope before using the numbers for fitment or freight planning.
Other catalogue examples include the Dafra Bross / SDH175-12 rear swingarm listing and the Zongshen ZS150-48E / Batllo 5 rear swingarm listing. Their titles identify different brake and chain-case configurations; these are catalogue references, not fitment confirmation. Keep each configuration on a separate RFQ line and ask the supplier to confirm the exact vehicle version, mounting interfaces and dimensions before ordering.
What commercial details belong on each RFQ line?
Keep each product configuration on its own quote line. Ask the seller to confirm whether MOQ applies per piece, set or option; what hardware or bushings are included; and which material or surface-finish description can be supported for the selected item. Request current availability, sample terms, quote validity and production lead time rather than treating a catalogue reference as a current offer.
For delivery planning, give the destination country and postal area. Ask for the packing quantity, outer-carton dimensions and gross weight, then request product cost and freight separately. Confirm any branding, neutral packing or inspection requirement before the purchase order is approved.
How can a sample check reduce uncertainty before a bulk order?
If the supplier offers a sample, compare it with the original part or approved drawing at the same measurement points listed in the RFQ. Record the application, part reference and any open measurement on the sample approval. For production, agree which dimensions and visible features will be checked and what photos or inspection notes will accompany the shipment.
Do not mark a part as compatible because it looks similar in a photo. If a mounting measurement, included component or model-year application remains unresolved, keep that item open in writing and decide whether to pause the line, request another sample or quote a different configuration.
What message can a buyer send to request a quote?
Copy this template and replace the bracketed fields. Attach your photos, drawing or parts-diagram page.
Please quote [complete rear swingarm / pivot shaft / bushing] for [make, model, year, market, engine or frame code]. Our part reference is [number or unknown]. Attached are [photos / drawing / parts-diagram page]. Please identify the applicable pivot, axle and suspension or brake mounting dimensions, confirm the measurement points and list all included hardware. Quantity: [number] [pieces / sets]. Destination: [country and postal area]. Please confirm application, MOQ basis, current availability, sample terms, product price, quote validity, packing quantity and carton dimensions/weight. Quote freight separately and flag every fitment detail that remains unconfirmed.
Frequently asked questions
Does a matching model name or part reference guarantee fitment?
No. Use the model and reference to identify the request, then compare the exact version and mounting evidence. Ask the supplier to confirm the application and applicable dimensions in writing.
Is a swingarm pivot shaft included with a complete swingarm?
Do not assume so. Ask the seller to list whether the quotation includes a pivot shaft, bushings, spacers, adjuster blocks or other hardware.
Should the buyer send package dimensions when asking about fitment?
Send item measurements or a drawing for fitment. Ask separately for outer-carton dimensions and gross weight for freight planning; the two measurement scopes serve different purposes.
Next step: compare the relevant listings in Swingarms & chassis, open the W100S swingarm or CG-style swingarm page, and send the photos, measurements, quantity and destination for a written quote.