Can I replace 235/65R17 tyres with 225/65R17? You could, and the 225/65R17 tire will fit your existing rims, but you don’t want to do so. The lesser 225mm width tire offer a narrower tread contact patch, as well as potentially a lesser load carrying capability, depending on model of tire.

We know the diameter of the wheel is 15 inches, so the diameter of the tire is given by: tire diameter = wheel diameter + (2 * sidewall height)

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Since a 235 tire is a wider tire, it allows for more stability on the road while accelerating. This is especially useful for larger vehicles, like Land Rovers.

The 235 / 75 15 is 235mm wide or about 9.25 inches across the tread. while the 265 is 265mm wide or about 10.43 inches wide. while the 265 / 75 15 is about 30.64 inches diameter. The speedometer will read slower than you are going and the truck will also show less milage than is actually on the truck.

The width of an R70 and an R75 should be the same — in this case 205 millimeters — about 8 inches. The difference will be in the height. The sidewall of a 70-series tire will be 70% of the width, a 75 series will be 75% of the width.

No, either size will fit fine on the stock rims. no, your stock rims will fit fine. I’ve run 235/70-17, and 265/70-17 all on the same stock rim.

The 255 looks so much bigger than the 235. I know the size difference is only 3/4″, but it looks like much more in this picture? Or maybe it’s just the angle? It’s a bit deceptive because of the angle, but the tires are two different types as well.

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The only difference between a 255 and a 265, like Wandell said, the tire is going to be 10mm wider. If you want a taller tire you need to look and see if it is a 55, 60, or 65 and that is where you get taller…

The larger 285/70R17 tire in the photo above stands over an inch taller and is nearly an inch wider than the 265/70R17 size.

Yes and no… The diameter of the tire changes even when the only parameter changed is the width. So yes, 255, 275, refers to the width of the tire, that is understood. However increasing the width of the tire from 245 to 255 or 265 to 275 does increase the overall diameter of the tire.

No difference. Keep in mind 255 and 245 are sidewall width and having nothing to do with tread width. Depending on manufacturer a 245 could have more tread width than a 255.

The different tire size will be 20mm wider (about 7/8″) and about 7mm taller (less than 5/16″). Your additional ground clearance will be half the tire’s extra 7mm of height, plus the difference in tread depth. You will have no appreciable difference in ground clearance.

Moving from 255 to 245, you’ll see a . 1 inch size difference.

255 (Tire Width): The tire width is 255 millimeters from sidewall to sidewall or just over ten inches. 45 (Aspect Ratio): The tire’s sidewall is 45% of the tire’s width, which means the sidewall is about 114 millimeters or just over 4 inches.

P-Metric Tire Sizes – P-Metric to Inches Conversion Chart

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