Torsion spring for external mounting Ø 12 mm L=1250 mm Anteo. This spring is made of piano wire and is applied in the platforms of retractable tail lifts. Tensioning it helps the operator to carry out the action of opening and closing the tip of the platform, lightening its weight and therefore making the actions easier to perform and with less effort. The length is equal to the distance of the two curves at opposite ends. If the spring is no longer mounted on the vehicle or has broken, you can still understand its length. In fact, the distance can be measured directly on the plate between the two fixing points. If you need to apply a torsion spring on a platform that does not have one, you can buy the External torsion bar spring kit for platform D. 12 mm length 1250 mm Anteo code 64012A. This kit includes a spring and all the elements to fix it.