What Makes 225/45 R18 Different to Fit
An 18-inch wheel with a 45 profile sidewall doesn't leave much rubber between the rim and the road, and that changes what we look for when fitting 225/45 R18 tyres. Kerb damage is more likely on this size than on a taller, more forgiving sidewall, so we check the rim edge and bead seat carefully before mounting anything, not just after. It's a five-minute check that saves a return visit.
Wheel balancing also carries more weight at 18 inches than it does on smaller sizes. Get it even slightly wrong on a 225/45 R18 and the vibration shows up sooner and more noticeably through the steering column, particularly past motorway speeds. We run every wheel through a proper balance cycle before it goes back on the car, which is a step some quick-fit places skip to save time.
Matching 225/45 R18 tyres to How You Actually Drive
Pressure matters more here too. A 225/45 R18 run even slightly under-inflated wears unevenly across the shoulder far faster than a taller sidewall would forgive, so we always set pressures to the vehicle's actual spec on the door plate rather than a generic figure. If you're not sure what that figure should be, we'll check it for you at no charge next time you're in.
Frequently Asked Questions
See below for answers to any common enquires
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