JARGON BUSTED

Sidewall Markings Explained:

• BSW: Black Sidewall.
• OWL: Outlined White Letters (popular aesthetic).
• M+S: Mud and Snow rated.

Popular Compatible Vehicles

• Ford Ranger / Toyota Hilux: Mid-to-high trim levels frequently use the 265/65 R17 size, often in the OWL version.
• Nissan Navara / Isuzu D-Max: Popular fitments include 255/65 R17 and 265/65 R17.
• Kia Sportage / Hyundai Tucson (Older models): Compatible with sizes like 225/65 R17 for better off-road clearance.
• Land Rover Discovery (Older models): Certain generations can use the 235/65 R17 size for a more rugged setup.
• Jeep Grand Cherokee: Suits sizes such as 245/65 R17 or 265/65 R17.
• Volkswagen Amarok: Entry-level models can use the 245/65 R17 size.
• Renault Kadjar: Entry-level CUV fitment is typically the 215/60 R17.

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..

In 2026, the Sonar Conqueror SX-6 17" range addresses the modern trend of larger wheel fitments on SUVs and pick-ups while still offering genuine 70/30 on-road/off-road capability. These sizes often include aggressive OWL styling.

Available 17" Sizes and Markings

• 215/60 R17 96H BSW
• 225/65 R17 102H BSW
• 235/65 R17 104H OWL
• 245/65 R17 107H OWL
• 255/65 R17 110H OWL
• 265/65 R17 112H OWL
• 265/70 R17 115S OWL