Vehicle and position
Record make, model, year and axle position. For a fleet, identify the platform and any vehicle-specific requirements; include VIN or OE information when useful.
Kumho Tire fitment guide
Gather the right details before comparing passenger and commercial tire options.
A useful RFQ starts with the whole application
Size is a starting point, not a guarantee of fit. The vehicle manufacturer’s specifications, load, speed and service environment all need to be considered together.
Three details to gather
Sidewall markings
Capture the complete size, load index and speed rating. Confirm the rim and clearance requirements with the vehicle manufacturer before substitution.
Operating conditions
Describe axle loads, road surfaces, climate and typical speed. Include quantities, market and intended replacement schedule in your inquiry.
Prepare your brief
Use this sequence as a preparation checklist. Progress indicates the stages to complete, not a measured product performance claim.
Evidence to request
Product specificationApplicable market requirementsTest method and scope
A radial construction and a bias construction may respond differently to load and terrain; suitability depends on the tire specification and service conditions. Lower rolling resistance must be weighed against wet grip and tread life using comparable test methods; a result from one duty cycle does not predict every route. Request the test method, load, inflation pressure, surface and temperature with the product data. Ask for documentation specific to the tire and destination. Standards and system certificates have different scopes, so confirm applicability before relying on them.
Have your notes ready?
Send the details you have and identify the points that still need clarification.