Category 1 includes all bikes and components that should only be used on paved roads. The wheels are always in contact with the ground.
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CATEGORY 2: FOR USE ON AND OFF THE ROAD AND FOR DROPS OF UP TO 15 CM
Category 2 includes all bikes and components that can be used in conditions described under category 1, as well as on gravel roads and moderate trails. The wheels may not always
be in contact with the ground. Drops are intended to be limited to 15 cm or less.
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CATEGORY 3: FOR USE IN ROUGH TERRAIN AND FOR JUMPS OF UP TO 61 CM
Category 3 includes all bikes and components that can be used in conditions described under category 1 and 2, as well as on rough trails and rough and unpaved roads that require
good cycling skills. Jumps and drops should not be higher than 61 cm.
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CATEGORY 4: FOR USE IN ROUGH TERRAIN AND FOR JUMPS OF UP TO 122 CM
Category 4 includes the use of bikes and their components under the conditions of categories 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 when tackling "North
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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