What are the effects of increasing tire size by one inch?
3 Answers
The effects of increasing tire size by one inch are: increased fuel consumption; reduced mileage; accelerated brake pad wear; and potential failure to pass annual inspections. The original tires are specifically designed for the vehicle model, taking into account fuel efficiency, making them more compliant with fuel consumption standards. Choosing to downsize the tires by one inch is also not advisable. Selecting the appropriate tire size is a better option, as it can enhance driving stability and improve comfort for the driver. Paying attention to tire conditions while driving is more beneficial than harmful, as it can help prevent many unexpected incidents.
I remember my friend upgraded to tires one inch larger, and the driving experience changed quite a bit. With slightly larger tires, rolling resistance increases, which may slow down acceleration and definitely raises fuel consumption—averaging 5-10% more. The upside is improved grip, making the car more stable on wet roads and boosting confidence when cornering. However, be aware that larger sizes increase stress on the wheel suspension and steering system, potentially accelerating wear over time. If not compatible with the original specifications, it might even affect the ABS system's proper functioning. Also, the speedometer will be inaccurate, showing a slower speed than actual, making speeding tickets more likely. It's best to check the vehicle manual before switching and have a professional shop assess compatibility.
I've personally tried upgrading tire sizes and found a significant impact on fuel economy. Larger tires are usually wider and heavier, increasing fuel consumption by 1-2 liters per 100 km, costing more on long trips. Tire lifespan is also affected due to increased contact area, leading to faster wear and higher replacement costs. However, the upside is improved stability at high speeds with less bouncing. Switching to performance tires enhances handling, but avoid arbitrary size changes as vehicle insurance may not cover accidents involving modifications. In short, sticking to factory sizes is more economical. If you do change, carefully calculate the financial implications.
