Rear Sprocket for CFMoto 250NK: Adjustable Type
This rear sprocket is built for the CFMoto 250NK and supplied to a written specification, so the part that comes off the line in the next order matches the one you approved. Fitment, base material and finish are fixed before sampling starts — that is what keeps the adjustable type programme stable once it moves from first order to repeat order.
Most buyers come to us after something went wrong: warranty claims traced back to a single lot, or a specification nobody had written down. Both are avoidable when the specification is written down before bulk and the approved sample is kept as the reference.
Specification
| Part | Rear Sprocket |
|---|---|
| Fitment | CFMoto 250NK |
| Version | Adjustable Type |
| Base material | Bronze |
| Typical use | Mountain Roads |
| MOQ | 3,000 pieces per specification |
| Sampling | 14 working days, 5 days per revision |
| Bulk lead time | 30-45 days after approval |
| Compliance | TUV |
What decides whether it lasts
- Material — Bronze is the base; treat any substitution as a new approval.
- Hardness and heat treatment — recorded per lot, not per batch of paperwork.
- Fitment tolerance — checked on the actual CFMoto 250NK mounting, not on a catalogue drawing.
- Finish — a sealed surface treatment holds up where the machine sees salt, mud and daily washing.
- Packing — individual packing plus inner cartons sized for the workshop bench.
Processes used on this line
- powder coating
- heat treatment
- sintering
- cold forging
- gravity casting
- surface grinding
Fitment notes
Keep the old part until the new one is on the bench. Comparing them side by side settles questions a photograph never will.
Where it is used
The adjustable type build is the one most often ordered for mountain roads. Riders also fit it for rental fleets, wet weather riding, farm use, mining sites.
Ordering
- Confirm the model year and frame number before ordering.
- Approve a sample made from the actual bulk material.
- Fix the packing and marking at quotation stage.
- Book inspection before the balance payment, not after it.
Questions buyers ask
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 3000 pieces per line.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the TUV-compliant build instead of a fresh interpretation.
Can you match an existing sample?
Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.
What happens if a lot fails inspection?
The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.
