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Configuration
OEM Specification
Replacement Setup
Cross-Section Analysis
Suspension Risk
Fender Risk
Diameter Comparison
Diff: 27.8mm (4.4%)
Speedo: +4.4%
Strut Gap
-3.7mm
Fender Poke
+16.4mm
Ground Clear.
+13.9mm
Speedo @ 60
62.6mph
Safety Assessment
- WARNING: ABS/ESP Failure Risk. Speedometer variance exceeds safety threshold.
Quick Guide
1
Look for numbers like 245/40 R18 on your tire's sidewall.
2
Enter these in the OEM Specification section.
3
Compare with your new tire size to see if it fits safely.
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Calculations are theoretical estimates based on standard tire physics models. Always verify with physical measurements before high-speed operation.