When it comes to tires, the size of your tire matters for the performance, handling and safety of your vehicle. While the difference between 37 and 40 inch tires may seem small, there can be a huge difference in the way these tires impact the efficacy and overall ride quality of your automobile.
First and foremost, tire size affects the overall clearance of your vehicle. Generally, a 37-inch tire will provide 6.5 inches of ground clearance on a vehicle, while 40-inches will provide 8. Supposedly, you can fit a 40-inch tire in the same space as a 37 if it has low-profile sidewalls. Low-profile sidewalls will give the tire a sleeker look but also reduce the overall suspension travel. 37-inch tires are the more common of options because they allow for more suspension travel. If you want more stability and better cornering, you’ll want 40-inch tires; they will provide more ground clearance too.
The most important aspect when considering which tire size is best for you is the performance of your vehicle. 37-inch tires are a great choice for off-road vehicles since they increase the stability, acceleration and ground clearance. On the other hand, 40-inch tires may be appealing for those driving on the pavement since the ground clearance and handling are improved due to their larger size. However, when compared to a smaller tire, the treadwear on a 40-inch tire will be higher. With the additional rolling resistance, it’ll take more energy to complete the same distance and the fuel efficiency will decrease.
If you are looking for performance and looks, a 40-inch tire is the ideal tire size. It will provide more stability than a 37 and it has a much bulkier look to it. The primary benefit is the extra styling and it can also push your vehicle’s handling abilities to a higher level; particularly in the corners. That said, the downside is the increased rolling resistance, which will decrease the fuel efficiency and cause more fatigue, especially up hills. Meanwhile, the 37-inch tire offers great handling performance and better acceleration. On top of that, they provide better ground clearance and suspension travel.
Ultimately, when choosing between 37 and 40-inch tire sizes, you should consider the purpose of your vehicle and your driving style. 37 inches may be suitable for off-roaders, since you will have better ground clearance and suspension travel for tackling tough terrain. Meanwhile, if you’re looking for performance, the 40-inch will provide more stability, particularly on bends and in the corners. However, the downsides of the larger tire are that it will negatively impact the vehicle’s fuel economy and result in more fatigue for the driver.
In the end, knowing the difference between 37 and 40-inch tire sizes will help you to make the right choice for your vehicle, driving style and budget. Each tire size has its own benefits and drawbacks, so it’s important to consider all of these factors when making your decision.