Rear Pulley for Dayun 150: Drilled and Slotted
This rear pulley is built for the Dayun 150 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 drilled and slotted programme stable once it moves from first order to repeat order.
Most buyers come to us after something went wrong: inconsistent hardness between lots, 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 Pulley |
|---|---|
| Fitment | Dayun 150 |
| Version | Drilled and Slotted |
| Base material | Neoprene |
| Typical use | Rental Fleets |
| MOQ | 200 pieces per specification |
| Sampling | 10 working days, 3 days per revision |
| Bulk lead time | 20-35 days after approval |
| Compliance | ECE R90 |
What decides whether it lasts
- Material — Neoprene 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 Dayun 150 mounting, not on a catalogue drawing.
- Finish — powder coating 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
- injection moulding
- powder coating
- cold forging
- sintering
- shot blasting
- surface grinding
Fitment notes
Confirm the fitment against the VIN or the frame number before ordering; two model years often share a name and not a part.
Where it is used
The drilled and slotted build is the one most often ordered for rental fleets. Riders also fit it for construction sites, wet weather riding, delivery fleets, farm use.
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
How long does sampling take?
Samples leave the factory in 10 working days, and each revision round adds about 3 days once you have seen the first piece.
How is packing specified?
Individual packing, inner box quantity and carton marking are confirmed at quotation stage so the cartons arrive ready for your warehouse.
What is the minimum order quantity?
The standard MOQ is 200 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
What testing is included?
Standard lots ship with dimensional and hardness reports. ECE R90 documentation is issued with the shipment when your market requires it.
Ask for the current catalogue and the specification sheet for this line.
