Duratorque is a superior suspension system that is suitable for fitment to use on all types of trailers. Using specially formulated rubber cords as a springing medium, Duratorques are totally self-contained and easily fitted to the trailer chassis. Because the two sides are not connected, each wheel is sprung independently.

All Duratorque components are either galvanised or electro-zinc plated for protection against corrosion.

Carrying capacities for single axle applications range from 1000kg to 2000kg whilst a 3000kg version is available for the full-beam form.

All Duratorques are available in a non-braked form and in braked from 1000kg and upwards. These brakes can be hydraulic disc, 1500kg, 2000kg and 3000kg capacity. Electric drum in 1500kg, 2000kg & 3000kg capacities and hydraulic drum in 1250kg capacity.

All Duratorques are available as TWO-PIECE units that will fit any chassis width, and are available from stock; or as FULL-BEAM or one-piece units that are manufactured to the customers' specifications. Full beams
are also available in a GULL WING form for fitment to boat trailers, allowing the boat to sit lower on the trailer.

All Duratorques are fitted with a label showing the maximum carrying capacity over two wheels. This includes the weight of the trailer. When mounted in tandem the capacity is to be de-rated by 25%.
i.e. Two 1500kg Duratorques mounted in tandem will carry 2250kg.

It is recommended that Duratorques be mounted to the trailer with the swing arms trailing. When mounted in tandem it is recommended that the distance between the tyres be kept to a minimum and should not exceed
150mm. The distance between the top of the tyres and the mudguards when the Duratorques are new and unloaded should be at least 120mm.

When mounted in tandem and only one axle is braked, this must be the front axle.



This is the maximum load including the trailer weight.


If tandem then the carrying capacity of each Duratorque is to be reduced by 25%.


Are hubs to be braked or non-braked. Are hubs to be assembled to the suspension by Trojan. What is the studding of the hubs to be?


This is the measurement from the outside face of one hub to the opposite one. See A below.


This measurement is from centre to centre of the mounting brackets. See B below.


Measurements A and B are required plus C which is the required depth of the bend. This can be 60mm, 90mm or 120mm.


If you do not know the A and B measurements above, then the following information is required:
• Chassis overall width
• Whether the Duratorque is going to be mounted directly under the chassis or on an angle runner outside the chassis
• Outside to outside measurement of mudguards
• What the inside and outside offset of the wheels being used is, how many studs and what diameter and what the pitch circle diameter is.