Matter - Code Extreme wheels, designed for Inline Alpine, in contrast to the G13 models are characterized by:
- a better rebound
- greater agility
Matter - Code Extreme are perfect choice for narrow and steep routes where there are a lot of short and fast turns.
Matter - G13 wheels in contrast to Matter - Code Extreme guarantee more speed, but are more difficult to "control", which is why they are recommended for easier routes with longer straights.
Due to the above properties, the Matter - Code Extreme wheels perform excellently in junior skates, where the G13 models can be more difficult to control.