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Tyre Safety


  • Proper selection of tyres for the vehicle is very important to ensure optimum and safe operation.
  • Some of the critical factors to be considered for correct tyre selection are:
    • Vehicle type & use (passenger or goods)
    • Load carried and type of load (Load Index/PR)
    • Speed and sustained operations (Speed Symbol)
    • Type /Rim combination (Tyre Size and Rim Profile)
    • Operating conditions (Type of Roads/Terrain)
    • Tyre pattern design requirements based on the application


  • Mounting
    • Ensure that the rim is correct for the tyre size to be fitted.
    • Clean the wheel thoroughly to remove all contamination.
    • Ensure that the wheel is not cracked, deformed, damaged or bent.
    • Lubricate the tyre beads with an approved tyre lubricant.
    • With the tyre on the rim, start the inflation, making sure that tyre beads are seated correctly on the rim seat.
    • For safety reasons always use a new tube when fitting new tube type tyres.
    • Tubeless tyres must be fitted on air tight rims.
  • Dismounting
    • Before starting to remove, ensure that the tyre is completely deflated.
    • Ensure that there is no danger of the tyre bursting due to damage, exposed plies, etc.


  • Tyre mounting / demounting and changing can be dangerous and should be done by trained personnel using proper tools and procedures.
  • Never mount or use damaged tyres/ rims.
  • Explosion of tyre rim assembly can occur due to improper mounting, mis-application, improper inflation or overloading leading, to serious injuries or death.
  • Never use inflammable substance in a tyre.
  • Never use a tyre worn beyond the TWI.
  • Observe posted speed limits
  • Avoid fast starts, stops and turns.
  • Avoid potholes and objects on the road.
  • Do not run over curbs and hit the tyre against side railings, dividers and curbs.
  • Do not spin the wheels.
  • It is dangerous to neglect tyre damage.
  • Do not overload tyres.


Tyre Safety – JK Car Tyre

Load Index: A numerical code or numerical number associated with the maximum load a tyre can carry at the speed indicated by its speed symbol under the specified service conditions.

Speed Symbol: Speed symbol is an alphabet that indicates the maximum speed at which a tyre can carry a load corresponding to its load index.


  • Pneumatic tyres having the following conditions are considered unsafe for use:
    • Tyre body fabric/belts/plies exposed by wear, by injury, road hazards, damage, abrasions or scoring, etc.
    • Tyres having incipient failures by local deformation, bulging, swelling etc.
    • Pneumatic tyre which has been patched or repaired improperly or use of gaiter other than proper repair and vulcanization.
    • Tyre worn beyond tread wear indicator, having signs of severe, uneven, mis-alignment, patchy wear.
    • Broken cord or flat due to puncture, damage in bead area, damaged inner liner of tubeless tyre.