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Independent tire procurement for US business buyersFitment checklist

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Eligibility applies to qualified business buyers and is confirmed after we review your product, quantity, destination, and sourcing requirements.

Share Fitment Requirements
Fitment review at a tire workbench

Fitment Roadmap

SpokeWorks Sourcing fitment roadmap

Follow one example from reference size to a decision that a buyer can document. Use the checkpoints for your own tire program before requesting quotes.

Example: a service van runs loaded on mixed routes

A buyer has the existing tire designation but discovers that two vans use a different rim width. Split the inquiry by vehicle group instead of asking each factory to propose a single substitute. Include the maximum expected axle load, rim width, tire service description and delivery schedule for each group.

The purchasing team can request a comparable quote while the maintenance team confirms whether any alternative casing should reach sample evaluation. When a supplier answers with another load range or size, ask it to state the change and provide an evidence reference before comparing the bid.

“Write down which dimension, load basis or marking would make a proposal ineligible before you read the prices.” SpokeWorks buyer checklist

Questions to close before approval

Does the size identify the full application?

Confirm the tire size and approved rim width alongside the expected axle and load. If the project also changes the wheel, record PCD, offset and center bore separately for the wheel review.

Is a higher load index enough?

A higher index alone does not settle fitment. Compare approved application, speed rating, operating pressure and clearance where relevant. Ask the vehicle or fitment reviewer to own the decision.

What if the sample and quote differ?

Record the sample marking and part revision next to the proposal. If the factory expects to ship another revision or plant output, request the updated evidence and recheck whether the approval still applies.

What a sample review should capture

Read the sidewall

Read the sidewall

Photograph the full designation so the receiving team can match the tire to the quote.

Record the rim

Record the rim

Identify the approved rim width used for the fitment review.

Check the shipment

Check the shipment

Compare the received count, marking and case identification against the approved release.

Request a quote with your fitment checkpoints

Share the part you are replacing, the unresolved fitment questions and what evidence your buyer needs to accept an alternative.