The NF3 for extreme winter conditions. Durable tread with excellent grip!
The sipes provide particular braking and acceleration advantages on snow/ice. In snow-poor areas, the NF3 is not recommended due to its rough profile = running noise.
Refurbished tires are retreaded tires. The new tread is applied by the vulcanization process. For retreaded tires, grip, tread depth and other indicators are like new tires.