Let AllBrand Caravan Services work out the towball weight your caravan loaded as it would be on the road. At the jockey wheel and the back of your car, this weight is classed as uncoupled. Frequently the towball weight will be approximately 10% of the pre-determined ATM for your rig. Of course, more accuracy in this measurement is preferable to help you get the best possible service. Options for getting a higher degree of accuracy include taking the rig to a weighbridge, coming in to AllBrand and checking using our in-store towball weight scales, or using your own household scales (providing their capacity is sufficient to accomodate the theoretical weight).