Welcome to Auto, Motorcycle Parts & Accessories official website!

Hydraulic Piston Specification Example for Rental Motorcycles: Quick Fit Version

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

Hydraulic Piston Specification Example for Rental Motorcycles: Quick Fit Version

This is a worked specification for hydraulic piston in a quick fit version 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 quick fit version 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 reorders that did not match the approved sample.

Hydraulic Piston

Example specification

ItemHydraulic Piston
ApplicationRental Motorcycles
VersionQuick Fit Version
Base materialChromed Steel
Controlled dimensions3 key dimensions, recorded per lot
Tolerance band±0.1 mm
Finishpowder coated
MOQ2,000 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 — Chromed 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.

Hydraulic Piston example

Processes involved

  • CNC machining
  • gravity casting
  • anodising
  • shot blasting
  • assembly line testing
  • injection moulding

Where this example applies

Programmes that run quick fit version most often specify this build for rental motorcycles. Related applications include delivery vans, three-wheelers, boat trailers, dealership service, rental motorcycles.

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 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 2000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.

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 14 working days, and each revision round adds about 5 days once you have seen the first piece.

Ask for the current catalogue and the specification sheet for this line.

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