With the compact Carpoint tread gauge you can easily measure how much tread the tyre still has. A good profile on the tyres is essential because the car tyres are the only contact the car has with the road surface. The profile gauge has a measuring range of 0-26 millimetres. If you are going to measure, measure at several points. The legal minimum tread depth for summer and winter tyres in the Netherlands is 1.6 millimetres.