Road safety · bends and tyres

Braking in a bend

Choose a bend and see what happens in an emergency stop with new tyres on the front, the rear or all four wheels.

Bend
Speed and road
Tyres

A new tyre has 8 mm. Legal minimum: summer 1.6 mm, winter 3 mm.

Car

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How it works

In a bend part of the tyre’s grip goes into turning the car. Braking shifts load to the front axle and the rear wheels get lighter — with worn tyres at the rear, the rear loses grip first and the car spins. With worn front tyres, the car won’t turn and runs straight out of the bend.

Sources

  • ADAC, TCS, ÖAMTC — better tyres on the rear axle (wet-road tests)
  • Pidurdusmaa calculation model: tyre grip by tread depth, water, temperature and speed

Other tools