TV Tires
Hi everybody. My tow vehicle is a 2012 Dodge Ram 2500, 2wd. It is ready for new tires, and currently has 245/70r17 tires on it. I have found a great deal on a set of 285/70r17 tires, but am unsure as ...
Forum Discussion
The only difference between your stock tires and the tires that you are thinking off is the width of the tire across the thread. Its a wider tire.
That is not the only thing larger. Tirerack offers some details on understanding tire sizes.
OP, the proposed tires are 7.2% larger. So at any calibrated/displayed vehicle speed, you will be going 7.2% faster. At 65mph indicated, you will be traveling at 69.5mph.
You will be losing torque. The math works the same as a percentage, so you are down 7.2% wheel torque at the same engine speed/gear. If you have a gas engine, you are that much farther out of the powerband when cruising. And larger tires tend to weigh more. Higher unsprung/rotational weight means it takes more power to turn or stop turning. I would expect slower acceleration, more fuel used, and increased brake wear.
If all that is acceptable, go for it! Personally, I'd stick to stock size.
