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Close-up of commercial truck tire tread

Michelin Commercial Truck Tire

Zoom sur les roues d'un camion équipé en pneus Michelin

Truck & Bus Tire Maintenance and Safety Guide


Learn essential practices for mounting, inflating, inspecting, maintaining, handling and storing commercial truck and bus tires

Proper tire installation, inflation, inspection and maintenance are important for tire performance and safe operation. This guide covers recommended practices for commercial truck and bus tires, from mounting and inflation through ongoing maintenance, removal, storage and handling.

ON THIS PAGE

Mounting Truck & Bus Tires


Before mounting a truck or bus tire, verify that the tire is compatible with the vehicle manufacturer’s recommendations and intended use. Always follow recommended operating procedures and applicable safety regulations during tire installation.

General Safety Precautions

  • Wear appropriate personal protective equipment (PPE), including ear protection, gloves, safety shoes and safety glasses.
  • Make sure you have a safe working environment before beginning tire service.
  • Make sure the vehicle is stationary, the engine is turned off and the vehicle is properly secured using the parking brake, wheel chocks, jack or other appropriate equipment.

 

Tire Installation Precautions

  • Make sure the wheel and its components are in good condition.
  • Verify tire-to-wheel, tire-to-vehicle and tire-to-use compatibility.
  • Follow any mounting direction, direction of rotation or other instructions indicated on the tire.
  • Make sure the inside of the tire is clean, dry and free of foreign objects. For a previously used tire, inspect the inside for signs of underinflation, including marbling or dislocations.
  • Replace the valve seal or valve.
  • Make sure all components are properly in place before inflation.
  • Never stand in front of a mounted tire during inflation. Stand in line with the tread at least 10 feet away.
  • Follow these precautions for both new and previously used tires.
  • For vehicles equipped with disc brakes, Michelin recommends mounting tires on wheels with a protected valve to help avoid valve damage from objects caught between the brake and wheel.

 

WARNING: Incorrect installation can cause damage to the tires or vehicle and may result in serious or fatal injury.

Checking Tire Valves

Due to high temperatures and brake aging, valve seals and inflation extensions must be replaced during each tire change. A valve cap in excellent condition is essential to preserve the seal.

Diagram showing a truck tire valve joint, valve extensions and fixing clamps for dual tire assemblies

Truck Tire Valve and Extension Diagram

Valve sealing and extension diagram for dual tires. For this assembly type, always position the valves face-to-face.

Proper Truck & Bus Tire Inflation


Truck and bus tire inflation should be performed by trained personnel using proper equipment. Improper installation can damage the tire, inner tube or wheel, and tire damage may not always be visible at the time of installation.

Cold tire inflation pressure must be set according to the load, speed and usage conditions. Michelin recommends using an inflation cage when inflating tires.

Inflation should be completed in two stages:

1. Pre-Inflate and Inspect

  • Pre-inflate the tire to 22 psi.
  • Examine the tire.
  • If there is any doubt about the tire's condition, stop and contact a specialist.

2. Inflate to the Correct Pressure

  • Inflate the tire to the correct pressure.
  • Place the tire vertically in the inflation cage or in a prepared area.
     

Inflation Safety: During inflation, position yourself in line with the tire tread and remain at least 10 feet away.

Technician inflating a commercial tire from a safe distance while the tire is secured in an inflation cage

Commercial Tire Inflation Cage

Tire Balancing

Proper tire balancing can help support tire longevity, reduce premature mechanical wear and maintain vehicle driving performance.

Wheel Tightening

Proper wheel tightening helps maintain the condition of the wheel assembly and supports safe vehicle operation. Before tightening, inspect the wheel and prepare the mounting components properly.

Check Wheel Condition

  • Check wheel condition regularly. Replace any cracked wheel or rim.
  • Wheels and rims should preferably not be repaired by welding.
  • If welding is required, remove the tire from the rim before welding due to the risk of explosion.
  • Reassemble the tire only after all parts have returned to room temperature.
  • Remove the tire and wheel assemblies before welding the vehicle chassis.
  • When dismantling multiple-wheel assemblies, Michelin recommends deflating all tires on the vehicle.


Before Tightening the Wheel
 

1. Clean
  • Clean the contact surfaces of the hub and wheel.
  • Clean the studs and nuts.
2. Check
  • Inspect mounting holes for deformation, cracks or other damage.
  • Inspect studs for deformation and thread condition.
  • Inspect nuts for deformation and thread condition.
  • If necessary, remove rust and paint residue with a wire brush.
  • Check for metal burrs and remove them if necessary.
3. Lubricate
  • Apply a drop of oil to the nut threads and studs, and to flat or spigot nuts.
  • Never lubricate nut contact surfaces or spherical or M-type washers.
4. Final Tightening Torque
  • Tighten within the torque specifications recommended by the vehicle manufacturer.
  • Follow the appropriate cross-tightening order based on the number of nuts.
  • Correct tightening torque helps allow easier disassembly in the event of a puncture and helps prevent axle damage.

Wheel Nut Tightening Sequence


Follow the appropriate cross-tightening sequence based on the number of wheel nuts. The diagrams below illustrate the tightening order for eight-nut and ten-nut wheel assemblies.

Diagrams showing numbered cross-tightening sequences for eight-nut and ten-nut wheel assemblies.

Wheel Nut Tightening Sequence Diagram

Avoid Over-Tightening and Under-Tightening

Both over-tightening and under-tightening can cause serious damage, including:

  • Axle damage or breakage

  • Wheel loss caused by damaged nut threads

  • Brake drum warping


Recheck wheel nut torque: After 30 minutes or 30–60 miles, check the wheel nuts again using a properly calibrated torque wrench.

Important: When checking torque, do not repeatedly tighten and retighten the nuts.

Tire Monitoring and Maintenance

Regular tire inspections help identify wear, damage and pressure-related issues that may affect tire performance and safety. Before inspecting tires, make sure the vehicle is completely stopped, the engine is turned off and the vehicle is properly secured.
 


What to Check During a Tire Inspection

Inspection icon

Inspection icon

1. Inspect Tires and Wheels

Check for irregular tire wear, punctures, cuts and visible tread or sidewall damage. Have any suspected tire or rim damage examined by a qualified tire professional.

Tire pressure gauge icon representing proper RV tire inflation

RV Tire Pressure and Inflation

2. Investigate Handling and Pressure Issues

Investigate unusual vibrations, pulling to either side or unexpected pressure loss. If pressure loss occurs, stop as soon as it is safe to do so. Driving on underinflated tires can cause thermal deterioration of tire components.

Tire maintenance icon representing RV tire care and maintenance

RV Tire Maintenance

3. Have Damaged Tires Professionally Evaluated

A qualified tire specialist should determine the cause of pressure loss and evaluate whether a damaged tire can be repaired. The tire must be removed from the rim, and its interior must be inspected before any repair.

Additional Truck Tire Maintenance Practices

Switching and Reversing Truck Tires

Switching and reversing tires are maintenance practices that may help manage tire wear.

  • Switching: Moving a wheel assembly from one vehicle position to another.

  • Reversing: Removing a tire from its rim and remounting it in the opposite direction.


Before switching or reversing tires, check whether they have directional tread patterns. Any changes must preserve the required direction of rotation.

Why Wheel Alignment Matters

Proper wheel alignment helps maintain even tire wear and supports tire mileage performance. Misalignment can contribute to irregular wear and affect vehicle handling.

Have wheel alignment checked according to the vehicle manufacturer's recommendations, particularly when irregular tire wear or handling problems are identified.

Tire Removal Safety Precautions

Removing truck and bus tires requires proper safety precautions, particularly when working with dual tire assemblies or damaged wheels.

Before removing a wheel:

  • Follow the vehicle manufacturer's tire and wheel removal procedures.

  • When working with dual tire assemblies or visibly damaged rims, follow the applicable deflation procedures before removal.

  • Ensure the tire is completely deflated when required, using the appropriate procedure.
     


Important Safety Precaution

Michelin does not recommend removing a tire while the wheel remains mounted on the vehicle.
If circumstances prevent wheel removal, consult Michelin's approved tire removal procedures before proceeding.
 

Truck and Bus Tire Storage and Handling


Proper tire storage helps protect tires and their components from damage before installation. Storage conditions, positioning and handling practices should account for how long tires will be stored.
 

General Tire Storage Conditions

Store tires in conditions that help prevent deterioration and physical damage:

  • Keep tires in a clean, dry, well-ventilated area away from direct sunlight and moisture.

  • Store tires away from chemicals, solvents and hydrocarbons that could affect the rubber.

  • Keep tires away from sharp objects, heat sources, flames, electrical sparks and equipment that generates ozone.

  • Avoid crushing tires or damaging them through improper stacking.
     


Short-Term vs. Long-Term Tire Storage
 

Short-Term Storage

Long-Term Storage

Up to 4 weeks
More than 4 weeks

Unmounted tires may be stacked horizontally on wooden pallets.

Store tires vertically in a single layer on a storage rack.

Do not exceed a stack height of 4 feet.

Keep tires at least 6 inches off the ground.

If storage extends beyond four weeks, invert the stacking order.

Rotate stored tires once a month.


Mounted tire storage: Store mounted tires inflated and upright or on a storage cart in a single layer.

Safe Tire Handling

When handling commercial tires and accessories, operators should follow established safety procedures to help prevent injuries and tire damage.

  • Follow your company's safety policies and procedures.

  • Wear appropriate personal protective equipment (PPE).

  • Use tools and handling equipment that will not damage tires or their components.


Inspecting Tires Before Returning to Service

Stored tires should be inspected by qualified personnel before returning to service. Tires stored for more than five years must be examined by trained professionals to determine whether they are suitable for continued use.

Ensure appropriate inspection and reinflation procedures are followed before stored tires are returned to service.

For tires returning to service after storage, have a qualified tire professional inspect their condition and confirm the appropriate inflation pressure before use.
 

Additional Tire Storage Recommendations

Inner Tubes and Flaps

Inner Tubes

  • Store inner tubes slightly inflated and dusted with plain talcum powder inside tires, or deflated on a storage cart in stacks no higher than 20 inches.

  • Keep unopened inner tubes in their original packaging to protect them from contamination and environmental exposure.

  • Avoid storage surfaces that could damage the tubes.


Flaps

  • Whenever possible, store flaps inside tires with their inner tubes.

  • If stored separately, lay flaps flat on clean shelves protected from dust, grease and moisture.

  • Do not hang flaps, as this may stretch or damage them.

Storing Tires on Vehicles

Tires stored on vehicles require appropriate inflation pressure, periodic inspection and measures to help prevent flat spots.

Follow Michelin's applicable recommendations for the vehicle and tire configuration, including vehicles remaining on the ground, suspended vehicles and stored spare tires.

Returning Tires to Service

Before returning stored tires to service, have qualified personnel inspect their condition and confirm the appropriate inflation pressure.

Explore More Truck Tire Resources

Learn more about commercial truck tire care, maintenance and performance with these Michelin resources.

How to Maintain Proper Commercial Truck Tire Pressure

Learn how commercial truck tire pressure affects tire wear, fuel efficiency and maintenance, plus how to determine and maintain proper inflation.

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Uneven Commercial Truck Tire Wear: Causes & Prevention

Learn what causes uneven commercial truck tire wear, what common wear patterns may indicate, and how inflation, alignment and maintenance can help manage wear.

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Explore Commercial Truck Tire Tips & Advice

Find practical guidance on tire selection, maintenance, efficiency and fleet performance.

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