Large off-road tires can represent a meaningful near-term ownership decision on wheel loaders, articulated trucks, graders, telehandlers, cranes and other heavy equipment. A buyer should inspect more than remaining tread. Sidewall condition, inflation history, matching, repairs, rim condition and the application the tire worked in can all affect whether the tire is serviceable.
1. Record every tire, not just the worst one
Photograph and record tire manufacturer, size, tread pattern and visible identification information for each position. Note differences in brand, model, tread depth and apparent age. On multi-axle machines and dual assemblies, mismatched tires can create operational concerns even when each individual tire still has tread.
2. Measure tread and look for irregular wear
Measure remaining tread at consistent points rather than estimating by eye. Look for one-shoulder wear, cupping, localized flat wear, chunking and cuts. Irregular patterns can be connected to inflation, alignment, loading, site conditions or mechanical issues and should trigger inspection beyond the tire itself.
3. Inspect sidewalls carefully
Check both visible sidewalls for cuts, cracking, bulges, impact marks, exposed reinforcement or previous repair areas. Michelin emphasizes that exterior appearance does not reveal every condition and that a complete evaluation of a damaged off-road tire may require demounting by a qualified tire professional.
4. Include the rim and bead area
Inspect accessible wheel and rim components for visible damage, corrosion, cracks, missing hardware and signs of movement or leakage. Do not attempt tire or multi-piece rim service without qualified personnel and the proper safety procedure. If damage is suspected, treat it as a professional inspection item rather than a quick yard repair.
5. Verify inflation practices
Inflation should match tire, load and application requirements. Bridgestone recommends inspection of OTR tires and rims before shifts and highlights inflation pressure as a core operating check. For a used-machine buyer, ask how pressures were monitored and whether the seller has tire service records. A single pressure reading at inspection cannot reconstruct the tire's operating history.
6. Check matching on duals and axles
Bridgestone guidance calls out matching considerations for dual assemblies, including size, tread depth, pressure, pattern and loaded radius. Large differences can cause one tire to carry more load or create abnormal wear. Record the whole axle set before budgeting replacements.
7. Ask about repairs and heat events
Repairs should be evaluated by qualified tire professionals. Ask for repair history when available and look for evidence of major cuts, separations or repeated air loss. On haul applications, operating speed, payload, distance, road condition and heat exposure can materially affect tire life, so understand the machine's former duty cycle.
8. Convert condition into a replacement plan
Do not label tires simply “good” or “bad.” Group them into usable, monitor closely, professional evaluation needed and replace/price immediately. Obtain current replacement or repair quotes for the exact size and application when tire condition could affect the purchase decision.
Buyer tire checklist
- Size and model match the machine specification.
- Tread measurements recorded by position.
- No unexplained irregular wear pattern.
- Sidewalls checked for cuts, bulges and exposed reinforcement.
- Rims and visible hardware inspected.
- Duals and axle sets checked for matching.
- Pressure and service history requested.
- Questionable damage referred to a qualified tire professional.
The takeaway
OTR tire inspection is a condition and application review, not just a tread-depth check. Measure each position, understand the prior duty cycle and price any uncertain tire work before the machine becomes your responsibility.
Related BigEquipCo guides: Used Wheel Loader Buying Guide, Used Dump Truck Buying Guide and Heavy Equipment Total Cost of Ownership.
