Polyair Bellows Spring Airbag

Polyair produce a load assist air bag for use with leaf springs known as the Polyair Bellows spring or bag, perfect for use in load on or load off situations, like towing a caravan or boat. Polyair Bellows are of heavy duty rubber construction with steel brackets and are engineered to help carry significant loads, right up to manufacturer recommended gross vehicle mass or weight rating.

Watch this video if you think your rear leaf suspension needs some help when towing or just carrying more load.

  • If you want to read the step by step process of this application you can visit Suspension Supplies Australia and get the 10 steps taken to strengthen the springs so they can do their job and get the minimum of air pressure in our bellows air bags so the vehicle is now ready to tow that caravan and the gear that is stored in the canopy.