Tow ball weight and caravan sway

[Cyclone]

There has been A lot of good discussion and advice in this forum on this topic. But I just received email/add from a parts supplier that is worth looking at. I know this is an add but the video demonstration on how towball weight effects the stability of the rig is exultant and worth watching. Click on the link below
http://caravansplus.com.au/lq?id=87591&pw=79784&pg=27