Safety & Maintenance | Diamond Tyres

At Diamond Tyres, we engineer our products for durability, maximum grip, and long-lasting performance. To ensure optimal road safety, peak efficiency, and maximum mileage from your tyres, regular inspection and proper maintenance are essential.

Inspecting Mounted Tyres

Routine inspections are strongly recommended for rider safety and long-term tyre economy. The frequency of inspection should depend on your vehicle usage, load, and typical road conditions.

1. Treadwear & Depth

Inspect tread depth visually on a regular basis. Tyres must be removed from service when the tread has worn down to the base of any groove at any spot, or to the minimum legal depth specified by your vehicle manufacturer.

●       Replacement Limit: A tyre can remain in service with minimal groove depth only long enough to safely reach a service center—provided the top ply cord is not exposed or worn through. Continuing to ride beyond these safety limits may render the tyre unsafe or cause sudden failure.

●       Uneven Wear: If treadwear is excessive on one side, the tyre can be demounted and reversed on the rim (flipping), provided there is no exposed fabric and the casing remains intact.

⚠️ WARNING: Never probe cracks, cuts, or embedded foreign objects while the tyre is inflated. Doing so may cause the object to become a projectile or lead to a sudden explosion, resulting in severe or fatal injury.

2. Physical Inspection & Wear Signs

Damage Type

Visual Cue / Cause

Required Action

Sidewall Damage

Cracks, cuts, weather-checking, or snags extending to the casing ply.

Remove tyre from service immediately.

Bulges & Separation

Bulges in the tread, sidewall, or bead area indicating internal cord failure.

Mark with crayon and replace immediately.

Fabric Fraying

Deep groove cracking that exposes internal fabric or undercuts tread ribs.

Remove tyre from service immediately.

Flat Spots

Braking skids or hydroplaning. (Temporary flat spots occur when parked for long periods).

Rebalance assembly if vibration occurs. Re-inflate and warm up for temporary flat spots.

Bead Damage

Discoloration or cracking near wheel flanges caused by severe braking or brake drag.

Inspect wheel and replace damaged tyre.

Tyre Clearance

Scuff marks on tyres or inside wheel wells indicating rubbing.

Adjust mounting or vehicle clearance immediately.

Preventive Maintenance & Proper Inflation

Correct inflation pressure is the single most critical factor in any tyre maintenance routine.

●       Under-Inflation: Increases flex heating, shortens tread life, produces uneven wear, and significantly increases the risk of tyre failure.

●       Over-Inflation: Reduces road traction, creates harsh ride quality, makes the tread susceptible to impact cuts, and increases stress on the wheel rim.

Best Practices for Inflation

  1. Check Daily When Cold: Always measure pressure at ambient temperature before riding. Air pressure increases by roughly 1% for every 3°C (5°F) rise in temperature during operation.
  2. Never Bleed Hot Tyres: Never release air pressure from a hot tyre. Hot tyres with pressures exceeding 200% of their cold-rated pressure must be removed from service.
  3. Account for Load: Air volume drops under weight. Increase unloaded pressure settings by 4% when operating under heavy load.
  4. Allow a 12-Hour Stretch: Newly mounted tyres (especially bias-ply) stretch after initial installation. Allow 12 hours post-mounting to settle, then recheck and adjust pressure before putting into service.
  5. Keep Front & Rear Balanced: Ensure front and rear tyres are inflated to their respective specified pressures so the load is distributed evenly across the vehicle setup.
  6. Calibrate Gauges: Use a reliable, calibrated digital or dial pressure gauge. Inaccurate gauges are a leading cause of improper tyre care.

Cold Tyre Pressure Action Guide

If your in-service tyre pressure drops below the recommended manufacturer specification, follow this action chart:

Cold Pressure Reading

Operating Condition

Recommended Action

100% – 105%

Ideal

Normal operating range. No action required.

95% – 99%

Minor Loss

Re-inflate to specified cold service pressure.

90% – 94%

Moderate Loss

Inspect assembly for leaks. Re-inflate and monitor. Remove if pressure loss recurs within 24 hours.

80% – 89%

Severe Loss

Remove tyre/wheel assembly immediately and inspect for internal casing damage.

 

⚠️ WARNING: Do not approach any tyre assembly that shows signs of physical damage or structural instability. Refer to professional safety procedures for handling compromised tyre assemblies.

Care & Environmental Protection

●       Chemical Hazards: Keep tyres clean of oil, hydraulic fluid, grease, tar, and harsh chemicals. If contaminated, wipe immediately with denatured alcohol, wash thoroughly with mild soap and water, and inspect for surface softening or blistering.

●       Protective Coatings: Diamond Tyres formulates treads and sidewalls with specialized anti-oxidants and anti-ozonants to protect against weather cracking. Avoid applying harsh commercial tyre dressings or cleaners that strip these protective agents.

●       Storage & Exposure: When parking outdoors for extended periods, use reflective, light-colored protective covers to block direct UV sunlight. Store unmounted tyres away from electric motors, generators, battery chargers, and fluorescent lights, as these generate rubber-degrading ozone.

External Road Factors & Wheel Assembly

1. Pavement & Foreign Object Damage (FOD)

Potholes, broken pavement, loose gravel, bolts, and road debris are leading causes of premature tyre failure. Maintain safe speeds on uneven roads and keep assembly areas clean of sharp metallic objects.

2. Static Electricity

While tyres dissipate small amounts of static charge during operation, environmental conditions make discharge rates unpredictable. Never rely solely on tyres for electrical grounding near flammable liquids or materials.

3. Wheel Balancing & Wobbling

If you experience vibration or wheel wobble, the tyre itself is rarely the sole cause. Always inspect for:

●       Out-of-balance or bent rims

●       Flat spots from sudden heavy braking

●       Improperly installed or mismatched inner tubes

●       Poor rim alignment or mounting before full tyre stretch

Need Further Assistance?

At Diamond Tyres, your safety on the road is our highest priority. If you notice unusual vibration, persistent pressure loss, or structural wear on your tyres, visit an authorized Diamond Tyres dealer or service center immediately for a professional inspection.

For technical support or inquiries about our product line, feel free to reach out to our Customer Support team or visit our official website.