Off-road tires (Off-road tyre) are a category of vehicle tires that use deep tread to provide more traction on unpaved surfaces such as loose dirt, mud, sand, or gravel.[1] Compared to ice or snow tires, they lack studs but contain deeper and wider grooves meant to help the tread sink into mud or gravel surfaces.
- ^ Wade Shaddy. "Knobby Vs. Street Bicycle Tires". AZCentral.com. Retrieved 2015-03-28.