Tire Calculator
Type a tire size and instantly see its diameter, width and sidewall.
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/R
Width (mm)
Aspect %
Rim (in)
Results
Diameter
694.8
Section width
300
Sidewall
195
Circum.
2183
Revs/km
458
Tire Size Comparison
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Available Tires 300/65 R12
No tires found for size 300/65R12