The hubs are
made from aluminium with cnc finish and then anodized. The hubs are
very important in the set-up of a kart, the use of longer or shorter
hubs is one of the possible ways to vary the free length of axel
inflection. The longer the hubs, the shorter the free position of the
axel which can bend. In addition, the longer they are, the better the
kart’s grip, the shorter they are, the more free the kart is.
The difference in hub length is thus very important for the kart and can
be felt clearly in its set-up.