Tyre size

Understanding Tyre Size Specifications

Tyre sizes are written in a format such as 100/80-12. Each number has a specific meaning.

Tyre Width (mm)

Measured in millimetres, this is the width of the tyre from sidewall to sidewall. For example, a 100-width tyre is 100 mm wide.

Impact on performance: Wider tyres generally provide more grip and stability but may slightly reduce fuel efficiency.

Aspect Ratio (%)

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The aspect ratio is the height of the tyre’s sidewall expressed as a percentage of its width. For example, an 80 aspect ratio means the tyre’s height is 80% of its width.

Impact on performance: A lower aspect ratio gives sharper handling and better cornering but a firmer ride. A higher aspect ratio gives a smoother, more comfortable ride but less cornering precision.

Rim Diameter (inch)

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Rim diameter is the diameter of the wheel rim in inches. For example, 12 means the tyre fits a 12-inch rim.

Impact on performance: The rim diameter must always match your scooter’s wheel size so the tyre fits and performs correctly.

Common Tyre Sizes for 110cc–125cc Scooters

Front Tyres

• 90/90-12

• 100/80-12

Rear Tyres

• 100/80-12

• 110/70-12

Always check your scooter’s manual or the tyre sidewall to confirm the correct size before replacing tyres.

How to Choose the Right Tyres

City Commuting

Recommended: 100/80-12 or similar.
Why: Provides a balance of grip, fuel efficiency, and comfort for stop–start traffic.

Long-Distance or Higher-Speed Riding

Recommended: 110/70-12 or similar.
Why: Lower aspect ratio tyres offer improved stability and control at higher speeds.

Wet or Rainy Conditions

Recommended: Tyres with deeper tread patterns designed for wet weather.
Why: Improves water dispersion, increases grip, and reduces the risk of aquaplaning.

Tyre Maintenance Tips

Check Tyre Pressure Weekly

Use a pressure gauge and follow the manufacturer’s specifications. Correct pressure improves fuel efficiency, safety, and tyre lifespan.

Monitor Tread Depth

Replace tyres when tread depth reaches 1.6 mm or below. A tread depth gauge provides an accurate reading.

Inspect for Damage

Check regularly for cracks, cuts, bulges, exposed cords, or uneven wear. Replace the tyre immediately if you find significant damage.

Understand the Effects of Incorrect Tyre Pressure

Underinflation

• Increases tyre wear

• Reduces fuel efficiency

• Raises the risk of overheating or blowouts

Overinflation

• Reduces road grip

• Causes uneven tread wear

• Results in a harsher ride

Consider Nitrogen Inflation

Potential benefits may include:

• More stable pressure retention

• Lower operating temperatures

• Extended tyre life

When to Replace Your Tyres

Replace your tyres if:

• Tread depth is below 1.6 mm n- You notice visible structural damage

• Handling feels unstable

• Braking distances increase

• The tyre vibrates excessively while riding

Punctures and Repairs

Small punctures may be repairable depending on their location and severity. Always have punctures inspected by a qualified technician.

Our Recommendation

Use only tyre sizes and specifications recommended in your scooter’s manual. Choose tyres based on your riding style and road conditions. If you are unsure, contact our team for guidance.

Final Notes

Using the correct tyre size ensures proper handling, safety, fuel efficiency, and ride comfort. Regular inspections and proper inflation significantly reduce the risk of premature tyre wear or accidents. Avoid fitting non-recommended tyre sizes, as even small changes can affect braking, stability, and suspension performance.

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