The TANDEM SPEED is a double pulley specifically designed for rope zip lines, delivering outstanding performance and long-term durability. Featuring two stainless steel sheaves mounted on sealed ball bearings, it provides exceptional efficiency of 95% and smooth running, even under intensive use. Compatible with ropes up to 13 mm in diameter, it is approved for speeds of up to 20 m/s. Its large attachment point can accommodate up to three carabiners, making it particularly versatile for safety systems, rescue operations and rope-based applications. With a 10 kN maximum working load and a weight of 270 g, the TANDEM SPEED is a dependable solution for adventure parks, rescue professionals and rope access specialists. Certified to CE EN 12278 and UKCA standards. Available at La Corderie in Ixelles, Belgium.