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Key Markings Explained

• XL (Extra Load): Reinforced sidewall to support the weight of larger SUVs.
• FSL (Flange Shield Logic): Integrated rim protector to help prevent alloy damage from kerbing.
• Summer Performance: Optimized for temperatures above 7°C; this tyre is not winter-certified (does not carry the 3PMSF Snowflake symbol).

Popular Compatible Vehicles (Suggestions)

These sizes are frequently used as a budget-friendly alternative for the following vehicles in Ireland:

1. Nissan Qashqai / X-Trail: The 225/45 R19 and 225/55 R19 are standard fitments.
2. Hyundai Santa Fe / Kia Sorento: Frequently fitted with 235/55 R19.
3. Mazda CX-5: Uses the 225/55 R19 size for high-trim models.
4. Audi Q5 / Volvo XC60: Compatible with the 235/55 R19 size.
5. Volkswagen Tiguan: Fits well with 235/50 R19 or 255/45 R19.
6. Ford Kuga: Uses the 235/45 R19 size.
7. Toyota RAV4: Compatible with the 235/55 R19 size on premium trims.
8. BMW X3: Can utilize various 19" sizes for a value-oriented summer setup.

Summer tyres are most common in Ireland, offering peak fuel efficiency mileage and grip when temperatures stay above 7°C. However, they are not the official standard for winter safety. Motorists must show caution in cold conditions; below 7°C, summer rubber hardens, significantly compromising grip and wet braking performance on cold, saturated Irish roads.

All-Season tyres are the superior "fit-and-forget" solution for Ireland's wet, temperate climate. Specifically engineered to remain flexible in the cold, they provide shorter stopping distances on near-freezing, rain-soaked surfaces and carry the 3PMSF certification for frost and light snow. They offer total year-round peace of mind without the hassle of seasonal swaps.

Load Rating: Maximum Weight Capacity Explained

The load index is a numerical code representing the maximum weight in kgs that a single tyre can safely carry. To ensure safety, the combined capacity of all four tyres must exceed the vehicle’s total weight when fully loaded.

Speed Rating: Maximum Velocity Explained

Represented by a letter, the speed rating indicates the maximum kph a tyre can maintain over a prolonged period. Higher speed ratings are engineered to handle the heat and stresses generated at faster speeds more effectively.

Quick Reference Guide

• Check your requirements: You can find the specific requirements for your vehicle on the tyre information plate (usually located on the driver-side door pillar) or in the owner's manual.
• Replacement rule: It is vital never to fit a tyre with a lower load index or speed rating than those recommended by the manufacturer.
• Common Ratings: Standard ratings include T (190 kph), H (210 kph), and V (240 kph). You can view a full conversion table below..

For 2026, the Sonar Conqueror SX5 offers a cost-effective summer performance solution for premium crossovers and SUVs in the Irish market. Below are the 19" sizes and popular fitments.

Available 19" CUV/SUV Sizes and Markings

• 225/45 R19 92W FSL
• 225/55 R19 99V FSL
• 235/45 R19 95V FSL
• 235/50 R19 99V FSL
• 235/55 R19 101V FSL
• 235/55 R19 105V XL, FSL
• 245/45 R19 98V FSL
• 255/45 R19 100V FSL
• 255/50 R19 103W FSL