Valve Chrome valve TR 413 Ladnefelgi_en - Chrome valve

Conical, ball-seat and flat-washer – which ones fit your wheels?

Strength class and workmanship quality – why must wheel be durable?

The answer is simple: the higher the strength class of the material from which the is made, the higher its tensile strength and resistance to deformation.

In the automotive and aerospace industries, where safety is very important, with higher strength classes are used. These have been manufactured in strength class , which guarantees excellent mechanical and physical properties - such as high tensile strength and high resistance to deformation. A lower value of this parameter may mean that the could break or its thread could be damaged.

The strength classes of in Poland are standardized by the PN-M-82084 standard, which distinguishes 10 strength classes (min. – 3.6, max. – 12.9). The higher the number, the stronger and harder the is. This means you can be sure that can be safely used for fitting wheels to your vehicle.

Safe installation - practical tips from LadneFelgi.pl

➡ Wrench size for tightening – .
➡ are best tightened using a torque wrench, which ensures the correct clamping force.
➡ The wheel tightening torque recommended by the manufacturer can be found in the vehicle owner's manual.
➡ If are tightened too weakly, this may cause steering wheel vibration. Ignoring this may lead to the coming loose and the wheel falling off.
➡ If are tightened too strongly, the thread may be damaged.
➡ Remember to tighten the wheels in a cross pattern to distribute the tightening force evenly.
➡ After driving 100 km, their tightening torque should be checked again to make sure the have not loosened.