South African company owners and outdoor enthusiasts must be made aware that they cannot simply tow a load equal to a vehicle’s towing capacity as noted in the manual, says Thule Towing Systems South Africa (SA) MD Mark Gutridge.
 
He sends this warning in the light of increasing competitiveness among bakkie manufacturers around towing capacity.
 
For one, explains Gutridge, the law states that the kerb mass of the towing vehicle must be equal to or greater than the gross vehicle mass of the towed vehicle – unless the towed vehicle has a service brake.
 
This means a two-ton bakkie cannot tow a vehicle or trailer or caravan of more than two tons, unless these units have a service brake.
 
“It’s simply unsafe and illegal to do so, and severely enhances the risk of the vehicle jack-knifing,” says Gutridge.
 
Thule Towing Systems SA makes towing systems for several vehicle manufacturers in South Africa, as well as for the aftermarket. It has a 130 000-unit capacity plant in Pietermaritzburg, up from 60 000 units 18 months ago.

Global Thule Towing Systems production capacity is more than 1.2-million units a year.
 
A service brake – an air brake or hydraulic brake will also do – is similar to those found on huge truck trailers. It is a standalone, independent brake system that does not require momentum, such as an override brake normally found on a caravan.
 
Small trailers under 750 kg require no additional brakes.
 
“For a 3.1 t or 3.3 t load, for example, an override brake is not enough. 
 
“We want consumers to understand what towing capacity means,” emphasises Gutridge.
 
Not all tow bars are equal, either, he adds.
 
A year ago a meeting at the South African Bureau of Standards (SABS) revealed that out of the 25 towbar manufacturers in South Africa, only three had all their products tested at SABS-approved laboratories, as required by legislation, says Gutridge.
 
“A towbar affects a vehicle’s chassis and electronics. It must comply  with the required legislation.”
 
He adds that it is unsatisfactory that South African regulations allow a towbar maker to choose his or her own mounting points on a vehicle, as opposed to the best possible mounting points, as selected by the vehicle manufacturer – as is the case in Europe.
 
“You can end up with a towbar attached to the 0.75-mm-thick steel of your boot, as I have once observed,” says Gutridge.
 
He also notes that towbar manufacturers are required, by law, to make a towbar that takes into account the weight stipulated as that specific car’s towing capacity by the vehicle manufacturer.
 
However, in South Africa this weight is often lower, as tow-bar makers want to “cover themselves” in case of failure – which occurs more often that it should, as tow bars are not tested as required, notes Gutridge.
 
However, there is some good news. The National Regulator for Compulsory Specifications (NRCS), which acts as the enforcement body of SABS specifications, wants to charge all towbar makers and importers in South Africa a levy on all tow-bars sold locally. Towbar makers will then provide the NRCS with a list of their tested products, with this body able to visit any towbar manufacturer at any point in time, auditing their products and documentation, says Gutridge.
 
Consumers will also be able to ask manufacturers for their NRCS documentation before buying a towbar.
 
“The idea is that only tested tow bars will be sold in South Africa,” says Gutridge. “This will go a long way in ensuring a safer towing environment in the country.”