Bailey Unicorn Madrid (2015) I was also wondering if anyone has had any experience with MAD Helper Springs and their effectiveness?
Trailers and caravans can add up to 75kg of extra pressure on your towbar leading to unsafe journeys. Read about how helper springs can help you.
mad-suspension.co.uk
The car manufacturer makes provision for the tow bar loading and provided you follow their loading limits, the additional tow bar loading (providing it is within the specified limits) will not by itself render the car unstable. The spring assister manufacturer in this case is raising an unrealistic danger.
There can be a problem with fitting spring assisters or uprated springs to some vehicles, where the vehicle is fitted with suspension sensors that link into the cars stability systems. Changing the length rating or linearity of the springs action by fitting any of the above items, will change the sensors responses and will change the signals being fed to the stability system, with the consequence the stability system will be out of calibration and might produce the wrong correction signals and might make a situation worse rather than better.
This is another product where the manufacturer is playing on an implied danger, but unlike tyre bands which are simply an unnecessary expense, these devices can affect a vehicle's handling away from the manufacturers specification.
The fitting of such devices is classed as a modification, and you should advise your insurance company if you decide to fit them.