Welcome to Auto, Motorcycle Parts & Accessories official website!

Electric Motor Speed Controller Specification Example for Racing Teams: Off-Road Version

Source:Cross Section Otr Tire / Time:2026-09-18

Electric Motor Speed Controller Specification Example for Racing Teams: Off-Road Version

This is a worked specification for electric motor speed controller in a off-road 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 off-road version version exists because the duty cycle on racing teams is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually warranty claims traced back to a single lot.

Electric Motor Speed Controller

Example specification

ItemElectric Motor Speed Controller
ApplicationRacing Teams
VersionOff-Road Version
Base materialKevlar Composite
Controlled dimensions5 key dimensions, recorded per lot
Tolerance band±0.1 mm
Finishpainted
MOQ200 pieces per specification
Sampling10 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 — Kevlar 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.

Electric Motor Speed Controller example

Processes involved

  • shot blasting
  • electroplating
  • rubber vulcanisation
  • surface grinding
  • injection moulding
  • anodising

Where this example applies

Programmes that run off-road version most often specify this build for racing teams. Related applications include off-road bikes, assembly programmes, municipal fleets, emergency vehicles, workshop replacements.

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

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.

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 200 pieces per line.

What testing is included?

Standard lots ship with dimensional and hardness reports. ECE R90 documentation is issued with the shipment when your market requires it.

Send the specification you are working to and we will confirm what we can match, what we would change and why.

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