225/45 R18, what to know before fitting
On heavier estates with roof boxes or tow bars, look at load index. XL (extra load) variants are worth the small extra cost.
Cars commonly fitted with 225/45 R18
Sizing varies by trim, year and wheel package, so always confirm from the sidewall, fuel-flap, or door-frame placard. Models we often fit on this size include:
- Audi A4 Avant
- Volkswagen Passat (higher trims)
- BMW 3 Series Touring
- Mercedes C-Class Estate
Choosing the right 225/45 R18 tyre
We carry three clear tiers across the 225/45 R18 range so you can match tyres to how you actually drive:
- Premium. Michelin, Continental, Pirelli, Bridgestone, Goodyear. Best wet braking, longer life, lower noise. Strong choice for high-mileage, motorway-heavy or premium cars.
- Mid-range. Hankook, Toyo, Falken, Yokohama, Dunlop. Excellent value with reliable wet performance. Suits most family hatchbacks and SUVs.
- Budget. Landsail, Davanti, Triangle, Westlake, Roadx, Linglong. Fully road-legal, best for low-mileage city use or older cars.
Approximate dimensions
A 225/45 R18 tyre has a section width of about 225 mm, a sidewall height of roughly 101 mm, and an overall outside diameter near 659 mm. Always cross-check against your vehicle’s approved fitments before changing brands or rim sizes.
