Interior trains and housings tend to be less noticed by most cyclists. Only from the moment on when brakes or shifting no longer work properly, brake and shift cables as well as their housings are paid attention to. These components play a crucial role in ensuring a safe ride on the bike. Damaged housings lead to corrosion of the cables and thus to a reduced life and performance. A no longer or only bad working brake can lead to serious injuries in the worst case. A damaged cable prevents proper gear changes. Regularly check your cables and covers for damage and change them if necessary.