Rengaskorkeuden

Rengaskorkeuden is a Finnish term that translates to "tire height" or "tire aspect ratio" in English. It refers to the sidewall height of a tire relative to its width. This measurement is crucial in determining a tire's overall diameter and its impact on a vehicle's performance and ride comfort.

The aspect ratio is expressed as a percentage of the tire's width. For example, a tire with a size designation of 205/55R16 has a width of 205 millimeters and an aspect ratio of 55. This means the sidewall height is 55% of 205 millimeters, which is approximately 112.75 millimeters.

A lower aspect ratio, often found in performance tires, results in a shorter sidewall. This can lead to sharper handling and better road feel due to reduced tire flex. However, it also means a harsher ride and increased susceptibility to damage from potholes or rough surfaces. Conversely, a higher aspect ratio indicates a taller sidewall. This generally provides a more comfortable ride, better shock absorption, and increased protection for the wheel rim. However, it can also result in less precise handling and increased body roll.

The rengaskorkeuden is a key factor considered by vehicle manufacturers when selecting original equipment tires, balancing factors like fuel efficiency, handling characteristics, and passenger comfort. It is also an important consideration for car enthusiasts when choosing aftermarket tires to alter their vehicle's performance or aesthetics.