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Racing Crankshaft Components Specification Example for Aftermarket Retail: Upgraded Version

Source:Semi Truck Axle / Time:2026-09-18

Racing Crankshaft Components Specification Example for Aftermarket Retail: Upgraded Version

This is a worked specification for racing crankshaft components in a upgraded 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 upgraded version 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 a fitment that looked right on paper and failed on the bench.

Racing Crankshaft Components

Example specification

ItemRacing Crankshaft Components
ApplicationAftermarket Retail
VersionUpgraded Version
Base materialCarbon Fibre Composite
Controlled dimensions3 key dimensions, recorded per lot
Tolerance band±0.05 mm
Finishanodised
MOQ200 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 — Carbon Fibre Composite, 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.

Racing Crankshaft Components example

Processes involved

  • electroplating
  • gravity casting
  • rubber vulcanisation
  • laser cutting
  • surface grinding
  • shot blasting

Where this example applies

Programmes that run upgraded version most often specify this build for aftermarket retail. Related applications include three-wheelers, fleet maintenance, light trucks, boat trailers, export programmes.

Checks before packing

  • Dimensional report against the approved drawing.
  • AQL 1.5 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 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.

Do you handle mixed containers?

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

What happens if a lot fails inspection?

The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.

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.

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

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