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Tires must perform in real-life situations. You deserve the confidence that the tires you buy can match the driving situations you encounter on a regular basis.


So, that's how all tests in Kal's Tire Testing were designed - only test real-life Canadian driving situations that could easily be encountered. From cornering on icy or dry pavement to understanding how your tires perform on slushy roads, we have the tests to help you find the right tire for your needs.

Braking

In the braking distance test, a vehicle approached a marked line at a consistent speed and braking distance was measured in metres.

Summer Testing vs. Winter Testing

We varied our approach speeds by driving surface and by season for two reasons. First, this represents how most Canadians would normally drive on that surface in each season. Second, testing in both seasons provides an indication of how a tire's performance will be affected by road temperature.

Test
Condition
Summer
(km/h)
Winter
(km/h)
Dry 100 90
Wet 100 70
Gravel 50 N/A
Snow N/A 50
Ice N/A 30
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Cornering

The cornering test demonstrates the lateral traction capabilities of the tire over a range of surfaces from dry to icy pavement, in both summer and winter. To test cornering performance, a vehicle was driven in a radius circle and speed was slowly and progressively increased until the tire could no longer hold the corner and would lose traction.

Summer Testing vs. Winter Testing

To understand how road surface temperatures affect the cornering performance of a tire, our cornering tests are completed in both summer conditions (dry and wet pavement, and gravel roads) and winter conditions (dry, wet and icy pavement). Please note that slush is also tested but completed in a specific slush cornering test.

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Road Noise

The road noise of a tire was measured with a decibel meter on a marked stretch of road at a set speed. Using a decibel meter, the peak decibel level was recorded for each tire.

Summer Testing vs. Winter Testing

As road temperatures increase or decrease, road noise generally increases and decreases as well. To understand these potential changes, we test road noise in both summer and winter.

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Hydroplane Resistance

Hydroplane resistance was measured with repeated runs through a puddle that was maintained at a 4 cm depth. Starting at 80 km per hour, the speed of the vehicle was increased in 5 km per hour increments over repeated runs until the point where the tires lost traction or the vehicle reached 100 km per hour.

Summer Testing vs. Winter Testing

How a tire resists hydroplaning can be significantly influenced by the temperature of the standing water and the road surface. Consistent with our goal of testing tires in the most common Canadian driving conditions, we also test hydroplane resistance in both summer and winter.

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Rolling Resistance

Rolling resistance was measured by driving the vehicle at a consistent speed of 80 km per hour over a marked 10 km stretch of road. The average kilometres per 100 litres was then measured.

Summer Testing vs. Winter Testing

To understand how road temperature impacts a tire's performance in rolling resistance, we test in both summer and winter.

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Mud Acceleration

Mud acceleration was measured with trucks accelerating from a standing start in a pit of mud to a marked finish line. The time to cover the 6 metre distance was captured for each tire.

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Slush Straight Line

Straight line stability on slush was measured by accelerating the vehicle through a large patch of loose slush and snow until traction loss occurred.

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Slush Cornering

Slush cornering was tested with a corner set up with 5-7 cm of slush consistent throughout. Slush was raked in between vehicle tests to keep conditions consistent. The vehicle was driven around the corner until traction loss was observed.

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Want to see some actual results? Search for Tires and look for the Tested icon.