Weight Distribution Systems (WDS) are designed to balance out the weight of the trailer or caravan being towed, making driving easier, smoother, more enjoyable and safer!

A sway controller is designed to be used in conjunction with a Hayman Reese Weight Distribution System and prevents trailer sway caused by strong winds and wind buffets from large trucks and buses, by retarding the pivotal movement between the tow hitch and the trailer.

We carry a large range of Weight Distribution Systems available to suit your every towing need.

Towing without a Hayman Reese Weight Distribution System can cause unnerving trailer sway, reduced steering and braking responsiveness, less traction and misaligned head lamps. Over time you may also notice a reduction in fuel economy and in increased tyre wear.

When using a Weight Distribution System, the ball weight remains the same, however the load is evenly distributed through the vehicle’s chassis to all four wheels. It is important that the capacity of the Weight Distribution System is correctly chosen and that the vehicle manufacturer’s recommendations are always followed.

Classic And Standard Systems

Hayman Reese 600lb & 800lb Weight Distribution Systems come in a Classic and Standard style.

The Classic can be described as the Hayman Reese signature kit. The system is comprised of our proven traditional welded head, trunnion style high performance bars with integrated cams, and with light weight extra durable cast steel shanks.

The Standard kit is comprised of round, hook style high performance spring bars with integrated cams. Round spring bars allow for more clearance for trailers with 6” chassis. The system shares the same shank as the Classic kit and also has a light weight cast steel head.

Understanding your trailer ball weight is the starting point for know which Weight Distribution System you need. Use the table below as a guide.


Ball Weight (kg) Appropriate System
0 – 80 Mini
80 – 135 Intermediate
135 – 275 600lb Kit
275 – 365 800lb Kit
365 – 545 1200lb Kit


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