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How to specify a Spoke

What to put on an RFQ for Spoke: the ratings, documents, and constraints that change the quote.

25 Oct 2026 · 3 min read · Tradinor Desk

Specification points for SpokeTRADINOR · FIGUREWhat to lock for SpokeProtectionWear itemsEnvironmentSide
Put these on the RFQ for Spoke before you compare prices.

A buyer searching for Spoke is usually trying to stop a bad substitute. A motorcycle part is specified by the machine it fits, the duty, and the protective or mechanical rating. The notes below are selection criteria for a Spoke. They are not a catalog promise. Confirm every rating on the current datasheet, drawing, or test report for the revision you will receive.

What has to be true of Spoke

A motorcycle part is specified by the machine it fits, the duty, and the protective or mechanical rating. For a Spoke, start from the duty, then the interface to the rest of the machine or the room, then the document that proves the claim. A lower price that leaves one of those blank is a different product.

Spoke is easy to confuse with Piston Kit. If the quote could be read as either, add the line that separates them: the rating, the fitment, or the standard named below. Link the drawing number to that line so receiving inspection can reject the wrong one.

Numbers that change the quote

Line What to write for Spoke
Protection For helmets and armor, the certification mark and the standard version.
Wear items Compound, pitch, or tooth count for drivetrain parts.
Environment Wet use, and whether the part is structural.
Side Left or right when the bike is not symmetric.
Documents The certificate for protective equipment, naming the model.
Fitment Make, model, year, or the chain pitch, spline, and bolt pattern.

How to compare two offers

Lay both quotes for Spoke on one sheet and line up protection, wear items, and environment. If a cell is empty, the offer is not finished. Ask for the missing line in writing. When those match, the honest difference is lead time, the test evidence, and who carries the warranty. Do not average a fully specified Spoke with a cheaper line that omitted protection.

Documents worth having before the deposit

Helmets and armor should be ordered against the certification printed in the market of sale, such as the ECE helmet scheme where that rule applies. Confirm the current mark. The file should name Spoke and the revision, not only the supplier’s homepage. A factory quality certificate such as ISO 9001 can sit beside that file. It does not replace it.

Failures that show up after delivery

  • Assuming a car brake part fits a bike caliper.
  • Buying a helmet on graphics rather than the certification.
  • Mixing chain pitch and sprocket tooth counts.

On a Spoke, the expensive version of the first mistake is discovering it after the goods are in the crate. Put the rejection condition in the purchase order while the supplier can still restate the offer.

A worked RFQ line

Use this shape, then replace the brackets with your duty: “Spoke — Write fitment, certification if it is protective, and the mechanical size.” That sentence is a template, not a rating of any brand. If a supplier’s datasheet uses different units, convert them onto this sheet so the next offer can be compared.

Where words like outdoor belong

Searches often add a constraint to Spoke: outdoor, or RoHS / CE. Keep those on this page. Outdoor means UV, temperature cycle, and corrosion, not only a gasket. Name the climate and the years the gasket is expected to last. RoHS is a material limit. CE is a declaration that lists the rules relied on. Ask for the document that names this part number and revision. If you need a third constraint, add it as another line on the same drawing. A second URL that only swaps the adjective does not give a buyer a second fact.

Related in this section: how to specify Piston Kit.

Questions buyers actually ask

What should an RFQ for Spoke include?

Write fitment, certification if it is protective, and the mechanical size.

Is a cheaper Spoke the same part?

Only if protection, wear items, and the documents match. A missing line is a different offer.

Do waterproof, OEM, or IP words need their own page?

No. For Spoke they are extra lines on this specification. Ask for the test or the drawing that gives the word a value.