Våtgrepp

Våtgrepp is a Swedish term that translates to "wet grip" and refers to the ability of a tire to maintain traction on a wet surface. This is a critical factor in vehicle safety, particularly during rain or when driving on roads with standing water. Tire manufacturers design tread patterns and rubber compounds specifically to optimize våtgrepp.

The effectiveness of våtgrepp is influenced by several tire characteristics. The tread pattern plays a significant role by displacing water away from the tire's contact patch with the road. Deep grooves and sipes (small slits) help channel water out, preventing hydroplaning, a dangerous situation where a layer of water separates the tire from the road surface. The rubber compound used in the tire also affects våtgrepp. Certain compounds are formulated to remain flexible in wet conditions, allowing the tire to conform better to the road surface and increase friction.

Testing of våtgrepp is a standard procedure in tire development and certification. It typically involves measuring the distance a vehicle travels before stopping from a certain speed on a wet surface. Higher-performing tires will demonstrate shorter braking distances. This metric is often highlighted in tire reviews and industry standards. Understanding våtgrepp is essential for drivers making informed choices about tire selection, especially in regions with frequent rainfall.