Complex sentence: This resistance results in a phenomenon known as understeer, which seems to push the vehicle outward during the turn, this is due to the loss of traction between the front (steering) wheels and the road surface.
Split into simpler sentences: This resistance results in a phenomenon known as "understeer", which a driver experiences as the front of the vehicle running wide towards the outside of the turn. This is due to reduced grip between the front (steering) wheels and the road surface.