The innovative fall arrest runner SPEED ATTACH is the world's only runner with two redundant catch systems and speed-dependent catch function. The catching bar is hidden in the housing and is protected there against unintentional intervention. Through an additional lever, the SPEED ATTACH works like a back pull runner when climbing. The runner remains short and thus also the catch path. This provides climbing comfort and reduces fall-related injuries. In the event of a back pull failure, the runner can only reach a fixed preset maximum speed. If it exceeds this, the independently acting second safety device engages: A centrifugal brake swings out the safety catch and the slider locks. The travelling safety gear is compatible with C-profile rails of the SKYTAC rail from SKYLOTEC or the SÖLL GlideLoc rail, which allows a wide range of applications. Solid aluminum housing, stainless steel axles and metal guide rollers ensure low wear. The difference between the two travelling fall arresters is that the SPEED ATTACH compared to the SPEED can be attached and removed at any point of a C-profile, whereby the arrester runner can also be removed if, for example, work has to be carried out on intermediate levels.