Understanding Your Sidewall & Other Tire Markings

The marking of a tire

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  • XeoBib range
  • VF = Very High Flexion: a marking designating the tire category
  • 650 – nominal section width
  • 60 – sidewall height/nominal section of the tire
  • R - Radial structure
  • 38 – nominal diameter of the rim in inches
  • 155 – load index rating: 3,875 kg
  • D - speed code: 40 mph
  • Radial - indication of the structure
  • Tubeless – tire without inner tube
  • Michelin® X® : trademarkXeoBib Gamme

The dimensional ribs of the envelope and the rim

lire-marquage

Tire

  • S – section width of an agricultural tire
  • R’ – radius under static load*
  • R – radius without load
  • D – external diameter, equal to 2xR
  • C.d.R. rolling circumference of the tire in dynamic mode* (dynamic measurement)

Rim

  • F – internal width
  • H – anchorage height
  • Ø – diameter at seat (internal diameter of the tire)

Rims and valves references

Rims and valves references for agricultural tires

Rims-and-valves