BMW
3 Series
Production years: 2012–2019
Compare upgrades against OEM
Current Tire
New Tire
Ground line · scaled comparison
Excellent Fit
Within ±3% — safe for daily driving
Diameter change
+2.9 mm
0.44%
Speedometer at 100
100.4 km/h
+0.44% error
Ground clearance
+1.5 mm
ride height delta
Sidewall change
-11.3 mm
revs/km: 482.5
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/compare/225-50-r17-vs-225-45-r18What is plus-sizing?
Plus-sizing means fitting a larger-diameter wheel with a lower-profile tire so the overall rolling diameter stays close to OEM. Done well, it sharpens steering and visual presence without breaking the speedometer or ABS. Done poorly, it can cause rubbing, harsher ride and accelerated suspension wear. Each upgrade size above is matched to keep total diameter within a safe ±3% of the OEM specification.
Other BMW fitments
Disclaimer
Fitment data shown here is informational and based on commonly documented OEM and aftermarket sizes. It is not a guarantee of compatibility with any specific BMW 3 Series trim, year or market. Always verify against your vehicle's official manual, tire-and-loading placard and your local regulations before purchase.