JARGON BUSTERS

Quick Guide to Markings & Features

• XL (Extra Load): Reinforced sidewalls for heavier vehicles, particularly useful for modern EVs.
• FR / FP (Flange Protector): Integrated rim protection to shield expensive 21" alloys from curb damage.
• EVc (EV Compatible): Standard across the range (implied by design for efficiency and load).
• ★ (BMW/MINI): Engineered specifically for BMW Group chassis dynamics.
• Acoustic / SCT / EDT: Goodyear's technology involving a sound-absorbing layer of foam to reduce interior cabin noise.
• Mileage Plus Technology: A highly elastic tread compound that provides significantly increased mileage performance on Irish roads.
• Wet Braking Technology: Shorter stopping distances in the damp Irish climate thanks to a specific tread compound and design.

Popular Vehicle Suggestions

• Saloons & Luxury:
  • BMW 7 Series (G70/G71): High-spec models often use this specific OE-marked size for optimal performance and a quiet ride.
  • BMW iX: The electric SUV platform uses this size for its high load rating and EVc compatibility.
• Estates:
  • Future High-Performance Estates: As vehicle sizes increase, this 21" size is an emerging fitment for performance-focused models.

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..

Available 21" Sizes for Goodyear EfficientGrip Performance 2

• 255, 50, R21, 109Y, XL, FP 

Original Equipment (OE) Specific Versions

• 255, 50, R21, 109Y, XL, FP, ★ (BMW), SCT, EDT, Acoustic