Many vehicles today are being equipped with wider tires on the rear axle. This is commonly referred to as a staggered set-up. Those wider rear tires may look better cosmetically and perhaps offer an increase in dry grip traction during the summer months, however, when it comes to winter traction a narrower tire is more effective in cutting through snow and is often more economical.
As a moderator of a few BMW forums, I'm often asked if one can eliminate the stagger set-up and run the same size winter / snow tires in the front and rear. For most vehicles, the answer is that you can indeed go to a square set-up and use the same size on both axles. However, depending on the vehicle application, this new set-up may require purchasing different wheels.
Note: A few rare applications require that a taller diameter tire be used on the rear rather than just a wider tire in order to maintain the functionality of the vehicle's ABS and traction control systems.
To see if you can use a square set-up on your vehicle for improved winter traction, shop by vehicle or contact one of our sales specialists.