A type of roller skate is known from DE 10 2005 059 069 B4. This roller skate has a boot, to the sole of which a roller carrier element is attached, on which outer rollers are provided in the region of the outside of the boot and inline rollers are provided under the boot.
The asymmetrical arrangement of the rollers means that different roller carrier elements are necessary for the left and the right roller skate of a pair, which are identical only in a mirror-image manner. However, this means that different tools, in particular different injection molds, are necessary for the manufacture of the roller carrier elements for the right and the left skate.
In addition, the roller carrier elements must also be varied for roller skates of different sizes, i.e., for different boot lengths. This leads to a further multiplication of the tools and thus of the production costs.