According to Sean Holman in his article “Choosing The Right Ratio – Uncovering The Secret Calculation”,
“With a bigger tire, the truck will feel like it is geared higher (numerically lower), which is great for highway cruising, but not for low-end grunt, off-the-line acceleration, or passing power. To bring your rig back to stock performance after a tire size upgrade, it is important to regear the truck accordingly.”
With larger tires your motor has to work much harder. You need more torque from the motor in order to drive the bigger wheels more efficiently. Therefore, be very careful in selecting the proper tire size to use.
Another problem is on the size of the rim versus the size of the tire. We usually prefer a relatively larger rim size for more stable ride. If you have a large tire but a small rim, the empty space in between should be filled with foam or other material.
