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Strut-Type Shock Absorber Specification Example for Aftermarket Retail: Racing Spec

Source:Stainless Steel Muffler / Time:2026-09-18

Strut-Type Shock Absorber Specification Example for Aftermarket Retail: Racing Spec

This is a worked specification for strut-type shock absorber in a racing spec 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 racing spec version exists because the duty cycle on aftermarket retail is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually premature wear on the first batch.

Strut-Type Shock Absorber

Example specification

ItemStrut-Type Shock Absorber
ApplicationAftermarket Retail
VersionRacing Spec
Base materialForged Aluminium
Controlled dimensions5 key dimensions, recorded per lot
Tolerance band±0.5 mm
Finishzinc plated
MOQ1,000 pieces per specification
Sampling14 working days, 3 days per revision
ComplianceECE R90

How the example is built up

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

Strut-Type Shock Absorber example

Processes involved

  • die casting
  • rubber vulcanisation
  • precision stamping
  • gravity casting
  • surface grinding
  • heat treatment

Where this example applies

Programmes that run racing spec most often specify this build for aftermarket retail. Related applications include construction equipment, passenger cars, rental motorcycles, dealership service, trailer axles.

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

Can the specification be held on file?

Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the ECE R90-compliant build instead of a fresh interpretation.

Do you handle mixed containers?

Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 1000 pieces per line.

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.

What is the minimum order quantity?

The standard MOQ is 1000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.

Tell us the model, the fitment and the quantity and we will hold a production slot for you.

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