45mm x 710mm Shackle Offset Galvanised Spring. The offset is 50mm off centre to enable the axles to be closer on tandem trailers for 14inch or 16inch wheels.
This gap can be closed by 50mm to 100mm by turning the spring 180-degrees. Ideal for closing the gap between the tyres on tandem trailer setups.
- 28 inch (710mm)
- 45mm x 8mm
- 9/16 inch shackle bolt diameter.
- 300mm eye to Center Bolt.
- 410mm other eye to centre bolt
- 105mm Free Camber
Spring rating per spring for offset springs are
- 5 leaf 650kg
- 6 leaf 750kg
- 8 leaf 850kg
The problem arises its head when the trailer carry’s too much weight and spring breaks before the owner gets the chance to upgrade his springs.