JARGON BUSTERS

Key Features & Markings Explained

• ELECT: Specifically designed for high-performance electric vehicles to handle extreme instantaneous torque, minimize noise, and extend range without sacrificing grip.
• EU Grade A Wet Braking: The highest attainable safety rating, vital for maintaining control and minimizing stopping distances on wet Irish roads.
• FR (Felgenrippe): An integrated Rim Guard feature (indicated by the 'FR' in the list) that provides physical protection to your valuable alloy wheels from accidental curb damage.
• Seal Inside: An internal sealant technology that allows you to continue driving without air loss after a puncture up to 4mm.
• Run-Flat: Reinforced sidewalls that support the car's weight for up to 80km at 80km/h after a total loss of pressure.
• XL (Extra Load): Reinforced construction for heavier, high-performance saloons and coupés.
• OE Markings (AO, MO, N0, ★): Pirelli's "Perfect Fit" strategy—tyres developed specifically for Audi, Mercedes, Porsche, and BMW. 

Popular 19" Fitments for the Irish Market

• BMW 3 Series / 4 Series (M Sport): (225/40 R19 front & 255/35 R19 rear - staggered fitment) Utilizing the ★ (BMW) marking for ultimate handling precision and steering feel.
• Audi A4 / S4 / A5 Coupé: (245/40 R19) AO marked fitments ensure peak braking performance and motorway stability for performance saloons.
• Mercedes-Benz C-Class / E-Class Coupé: (245/40 R19 & 265/35 R19) The MO spec guarantees compatibility with Mercedes-Benz electronic safety systems.
• Porsche Boxster / Cayman / 911: (235/35 R19 front & 265/35 R19 rear) The N0 marking confirms these are approved for Porsche's rigorous performance standards.
• Volkswagen Golf R / Arteon: (235/35 R19 & 245/40 R19) A performance upgrade for top-tier hatchbacks and saloons, offering exceptional wet and dry grip.
• Tesla Model 3 / Model Y (Performance): (235/40 R19 & 255/40 R19) Leverages ELECT technology to handle instant torque efficiently and quietly.

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..

Pirelli P ZERO™ (PZ5) 19" Size List (Smallest to Largest)

• 225, 35, R19, 88Y, XL, FR
• 225, 40, R19, 93Y, XL, FR
• 235, 35, R19, 91Y, XL, FR
• 245, 35, R19, 93Y, XL, FR
• 245, 35, R19, 93Y, XL, Run-Flat, FR
• 245, 40, R19, 98Y, XL, FR
• 255, 30, R19, 91Y, XL, FR
• 255, 35, R19, 96Y, XL, FR
• 255, 35, R19, 96Y, XL, Seal Inside, FR
• 265, 35, R19, 98Y, XL, FR
• 275, 35, R19, 100Y, XL, FR
• 285, 30, R19, 98Y, XL, FR

Manufacturer-Specific Fitments (OE)

• 225, 40, R19, 93Y, XL, AO (Audi), FR
• 245, 40, R19, 98Y, XL, MO (Mercedes-Benz), FR
• 245, 40, R19, 98Y, XL, N0 (Porsche), FR
• 255, 35, R19, 96Y, XL, ★ (BMW), FR