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Bike Gear System Specification Example for Utility Trailers: High Performance

Source:Automotive Electronics / Time:2026-09-18

Bike Gear System Specification Example for Utility Trailers: High Performance

This is a worked specification for bike gear system 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 utility trailers is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually documentation that arrived after the container shipped.

Bike Gear System

Example specification

ItemBike Gear System
ApplicationUtility Trailers
VersionHigh Performance
Base materialStainless Steel
Controlled dimensions3 key dimensions, recorded per lot
Tolerance band±0.5 mm
Finishpainted
MOQ200 pieces per specification
Sampling7 working days, 5 days per revision
ComplianceSAE J431

How the example is built up

  1. Start from the duty cycle, not from the catalogue photograph.
  2. Fix the base material in writing — Stainless Steel, 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.

Bike Gear System example

Processes involved

  • sintering
  • die casting
  • ultrasonic cleaning
  • shot blasting
  • CNC machining
  • rubber vulcanisation

Where this example applies

Programmes that run high performance most often specify this build for utility trailers. Related applications include construction equipment, rental motorcycles, boat trailers, courier fleets, aftermarket retail.

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

How long does sampling take?

Samples leave the factory in 7 working days, and each revision round adds about 5 days once you have seen the first piece.

Do you handle mixed containers?

Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 200 pieces per line.

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.

Can the specification be held on file?

Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the SAE J431-compliant build instead of a fresh interpretation.

Share a sample or a drawing and we will quote against a written specification, not against a photograph.

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