Tools
Fitment Calculator
Enter two setups to compare them side by side — stance, clearance, diameter, and speedometer error visualised on a scaled cross-section of the axle.
Cross-section · axle view from behind · hub centre reference
Diameter Difference
+13.9 mm
New tyre is taller — higher than stock
Stance Difference
+11.4 mm
More poke — outer lip further out
Inner Clearance
+1.4 mm
Slight extra intrusion — check clearance
Speedo Error
+2.15 %
2.1% deviation — noticeable, tune recommended
Calculation breakdown
Current
Wheel width: 241.3 mm
Wheel diameter: 482.6 mm
Sidewall height: 82.3 mm
Overall diameter: 647.1 mm
Overall radius: 323.5 mm
Outer from hub: 85.6 mm
Inner from hub: 155.6 mm
New
Wheel width: 254.0 mm
Wheel diameter: 508.0 mm
Sidewall height: 76.5 mm
Overall diameter: 661.0 mm
Overall radius: 330.5 mm
Outer from hub: 97.0 mm
Inner from hub: 157.0 mm
Next step
Found the right fitment? Get a quote built around your exact chassis.