Category 4 refers to the use of bicycles and their components under the conditions of Categories 1, 2, and 3 as well as in very rough and partially blocked terrain with steeper slopes and consequently higher speeds. Regular moderate jumps by skilled riders pose no problem for these bikes. However, regular and prolonged use of the bikes on North Shore trails and in bike parks should be avoided. Due to the increased loads, these bikes should be checked for possible damage after each ride. Full-suspension bikes with medium travel are typical for this category.

Category 5 refers to the use of bicycles and their components under the conditions of Categories 1, 2, 3, and 4 as well as in demanding, heavily blocked, and extremely steep terrain that can only be tackled by technically skilled and very well-trained riders. Larger jumps at very high speeds and the intensive use of designated bike parks or downhill trails are typical for this category. It is essential to ensure that an intensive inspection for possible damage occurs after each ride. Pre-existing damage can lead to failure under significantly lower subsequent loads. Regular replacement of safety-relevant components should also be considered. Wearing special protectors is strongly recommended. Full-suspension bikes with long travel, as well as dirt bikes, characterize this category.