Fitment Guide
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It's important to keep the cars original tyre circumference, we fit larger alloy wheels and a smaller profile tyre to compensate, otherwise gearing, speedo and engine management can be affected.
Tyre Size to Compare
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Diameter
Circumference
Fits Wheel Rim
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specific tyre size to compare against.
New Tyre Size
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Diameter
Circumference
Fits Wheel Rim
Difference %
When speedometer reads
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mph/kph your actual speed will be
mph/kph.
Possible new tyre sizes, which will maintain the original tyre circumference or rolling radius
within + or - 1% which is adjustable below, mph/kph is also adjustable below;
Tyre Size Diameter Circumference Difference Speedo Fits Wheel Rim
---------- -------------- --------------- ---------- ------ --------------
195/70 R14 628mm / 24.72" 1973mm / 77.68" -0.95 % 69.33 5.5x14 to 7x14
185/75 R14 634mm / 24.96" 1992mm / 78.43" 0.00 % 70.00 5x14 to 6.5x14
175/80 R14 636mm / 25.04" 1998mm / 78.66" 0.30 % 70.21 5x14 to 6.5x14
205/60 R15 628mm / 24.72" 1973mm / 77.68" -0.95 % 69.33 5.5x15 to 7x15
215/60 R15 640mm / 25.20" 2011mm / 79.17" 0.95 % 70.67 6x15 to 7.5x15
195/65 R15 634mm / 24.96" 1992mm / 78.43" 0.00 % 70.00 5.5x15 to 7x15
225/50 R16 632mm / 24.88" 1985mm / 78.15" -0.35 % 69.75 6x16 to 7.5x16
205/55 R16 632mm / 24.88" 1985mm / 78.15" -0.35 % 69.75 5.5x16 to 7x16
195/60 R16 640mm / 25.20" 2011mm / 79.17" 0.95 % 70.67 5.5x16 to 7x16
245/40 R17 628mm / 24.72" 1973mm / 77.68" -0.95 % 69.33 8x17 to 9.5x17
255/40 R17 636mm / 25.04" 1998mm / 78.66" 0.30 % 70.21 8.5x17 to 10x17
225/45 R17 634mm / 24.96" 1992mm / 78.43" 0.00 % 70.00 7.5x17 to 9x17
205/50 R17 636mm / 25.04" 1998mm / 78.66" 0.30 % 70.21 5.5x17 to 7x17
285/30 R18 628mm / 24.72" 1973mm / 77.68" -0.95 % 69.33 9.5x18 to 11x18
295/30 R18 634mm / 24.96" 1992mm / 78.43" 0.00 % 70.00 10x18 to 11.5x18
245/35 R18 628mm / 24.72" 1973mm / 77.68" -0.95 % 69.33 8x18 to 9.5x18
255/35 R18 636mm / 25.04" 1998mm / 78.66" 0.30 % 70.21 8.5x18 to 10x18
215/40 R18 630mm / 24.80" 1979mm / 77.91" -0.65 % 69.54 7x18 to 8.5x18
225/40 R18 638mm / 25.12" 2004mm / 78.90" 0.60 % 70.42 7.5x18 to 9x18
315/25 R19 640mm / 25.20" 2011mm / 79.17" 0.95 % 70.67 10.5x19 to 12x19
255/30 R19 636mm / 25.04" 1998mm / 78.66" 0.30 % 70.21 8.5x19 to 10x19
215/35 R19 634mm / 24.96" 1992mm / 78.43" 0.00 % 70.00 7x19 to 8.5x19
225/35 R19 640mm / 25.20" 2011mm / 79.17" 0.95 % 70.67 7.5x19 to 9x19
Width (
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to
125
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185
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265
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285
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325
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355
) Profile (
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to
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)
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to
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Difference
0.5%
1.0%
1.5%
2.0%
2.5%
3.0%
3.5%
4.0%
4.5%
5.0%
MPH/KPH
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TyreCalc version 2.3 rel 15/04/2015. ©2024.