Can someone please tell me where to find the diameters of P185/70R14 and P195/70R14? If you know the difference in diameter could you post it here? . . . in advance. . .thanks. . chas
- posted
10 years ago
tire diameters
Loading thread data ...
- Vote on answer
- posted
10 years ago
formatting link
the little tire is 24.2", the big one is 24.7" Speedo change is 2.3%
- Vote on answer
- posted
10 years ago
************ Thanks. So I should have wheel well clearance then. . . *************
- Vote on answer
- posted
10 years ago
Here's how to figure it out yourself: 185 is the section width in millimeters. "70" is the aspect ratio 70%. "R" means it's a radial tire, and 14 is the wheel size in inches. Let's put it together:
(185 * .70) gives you the sidewall height in mm.
129.5mm * 1 inch/25.4mm = 5.1 inch (sidewall height in inches)5.1" * 2 (because there are 2 sidewalls) + 14" = 24.2" tire diameter for the P185/70R14
(195 * .7 * 2)/25.4 + 14 = 24.75" for the P195
Hope I got the technical terms right :-) Bob