This European Standard specifies the characteristics of wheelsets for all track gauges. This standard can also apply to light rail and tramway applications. This standard is applicable to wheelsets comprising elements that conform to the following European Standards: EN 13262 for wheels; EN 13261 for axles. Some characteristics are given as a function of a category 1 or of a category 2. Category 2 can be divided into sub-categories (2a and 2b) to specify certain characteristics. 2a) vmax d" 120 km/h 2b) 120 < vmax d" 200 km/h Category 1 is generally chosen when the operating speed exceeds 200 km/h. The wheelset then comprises wheels and axle of category 1 as specified in EN 13262 for the wheels and EN 13261 for the axles.