Welcome to Auto, Motorcycle Parts & Accessories official website!

Train Axle Specification Example for Rental Motorcycles: Reinforced Build

Source:Off-Road Bumper / Time:2026-09-18

Train Axle Specification Example for Rental Motorcycles: Reinforced Build

This is a worked specification for train axle in a reinforced build 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 reinforced build version exists because the duty cycle on rental motorcycles is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually a fitment that looked right on paper and failed on the bench.

Train Axle

Example specification

ItemTrain Axle
ApplicationRental Motorcycles
VersionReinforced Build
Base materialABS Plastic
Controlled dimensions4 key dimensions, recorded per lot
Tolerance band±0.1 mm
Finishanodised
MOQ200 pieces per specification
Sampling14 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 — ABS Plastic, 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.

Train Axle example

Processes involved

  • precision stamping
  • ultrasonic cleaning
  • assembly line testing
  • shot blasting
  • powder coating
  • CNC machining

Where this example applies

Programmes that run reinforced build most often specify this build for rental motorcycles. Related applications include aftermarket retail, long-haul trucks, delivery vans, fleet maintenance, city buses.

Checks before packing

  • Dimensional report against the approved drawing.
  • AQL 4.0 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. SAE J431 documentation is issued with the shipment when your market requires it.

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 long does sampling take?

Samples leave the factory in 14 working days, and each revision round adds about 5 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.

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

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