Catefory 4 includes all bikes and components that can be used in conditions described under category 1, 2 and 3 as well as in very rough and partially blocked terrain with steeper sections and higher speeds. Regular, moderate jumps pose no problem for experienced riders when using these bikes. Extended and regular use in bike parks and then tackling "North Shore" sections should be avoided. Due to increased stresses, these bikes should be checked for damage after every ride. Full suspension bikes with mid-level travel are typical in this category.

Catefory 5 includes all bikes and components that can be used in conditions described under category 1, 2, 3 and 4 as well as in demanding, heavily blocked and extremely steep terrain, which can only be mastered by technically experienced and very well trained riders. In this category, big jumps are to be expected as well as intensive use in bike parks or on downhill tracks. With these bikes it is essential to ensure that after each ride an intensive check for possible damage is carried out. Pre-damages can lead to failure even if further stresses are significantly lower. A regular replacement of safety-relevant components should also be considered. Wearing appropriate protective gear is absolutely essential. Long travel full-suspension bikes but also dirt bikes characterize this category.