the embodiment of fig1 through 5 the trolley 14 may be permanently attached or may simply be removed upward once the spreader bar 44 and its locking rod 40 have been removed from the slot 42 thus the side plates 39 may simply permit access to the cable 12 by the trolley 14 from underneath the trolley 14 upon securing the trolley 74 one may register 76 the trolley 14 with the launch block 16 by placing the key 34 in the slot 36 one may then connect the snap shackle 60 of the gauge link 54 in order to secure the trolley 14 against rolling downhill away from the launch block 16 fixed to the cable 12 this increases safety in loading and frees up hands and personnel for the task securing 80 the suspension operates in different ways for example a harness may be attached to the connector 66 suspended by the bracket 64 from the lever 68 of the trolley 14 in fig6 in contrast the spreader bar 44 with its attached harness 66 may be locked into the slot 42 as described hereinabove ultimately an operator should verify 82 the rigging to be assured that the wheels 17 are properly fitted onto the cable 12 harnesses or seats are properly attached an open that all securements such as the carabiners 46 and side plates 39 are properly in place and so forth at this point one may load 84 or ready a rider in a harness suspended from the trolley 14 including re checking rigging releasing 86.