Welcome to Auto, Motorcycle Parts & Accessories official website!

Aftermarket Engine Brackets Specification Example for Scooter Fleets: High Performance

Source:Steel Wheel Hub / Time:2026-09-18

Aftermarket Engine Brackets Specification Example for Scooter Fleets: High Performance

This is a worked specification for aftermarket engine brackets in a high performance programme. It is the document we would send a buyer who asks what exactly they are getting: the material, the dimensions that are actually controlled, the finish, and the checks that happen before anything is packed.

The high performance version exists because the duty cycle on scooter fleets is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually warranty claims traced back to a single lot.

Aftermarket Engine Brackets

Example specification

ItemAftermarket Engine Brackets
ApplicationScooter Fleets
VersionHigh Performance
Base materialPU Leather
Controlled dimensions4 key dimensions, recorded per lot
Tolerance band±0.05 mm
Finishpainted
MOQ200 pieces per specification
Sampling10 working days, 3 days per revision
ComplianceSGS

How the example is built up

  1. Start from the duty cycle, not from the catalogue photograph.
  2. Fix the base material in writing — PU Leather, in this example.
  3. List the dimensions that are actually controlled and the tolerance on each.
  4. Name the finish and what it has to survive.
  5. State the inspection level and who pays when a lot fails.

Aftermarket Engine Brackets example

Processes involved

  • die casting
  • electroplating
  • anodising
  • cold forging
  • sintering
  • gravity casting

Where this example applies

Programmes that run high performance most often specify this build for scooter fleets. Related applications include assembly programmes, delivery vans, camper conversions, utility trailers, long-haul trucks.

Checks before packing

  • Dimensional report against the approved drawing.
  • AQL 2.5 sampling on the finished lot.
  • Finish inspection under agreed lighting.
  • Carton drop test on the first lot of a new packing specification.

Questions buyers ask

What testing is included?

Standard lots ship with dimensional and hardness reports. SGS documentation is issued with the shipment when your market requires it.

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.

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.

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.

Send the specification you are working to and we will confirm what we can match, what we would change and why.

Online customer service
WeChat contact
Customer service
Scan code to add Wechat (same mobile phone number)
Telephone consultation
Back to top