Specification Sidewall Radius Diameter Circumference Revs/km Difference
215/50-16 108mm 311mm 621mm 1952mm 512 0.0%
225/50-16 112mm 316mm 631mm 1984mm 504 1.6%


See http://www.miata.net/garage/tirecalc.html


Anthony B. Davis 2Deep2 Silver SVT 2002 IASCA SQ Ult Ama 601+ World Champion runner up 2002 SLAP dBQ Champion 2000 USAC SQ World Champion 2002 USACi SQ World Champion