Mine just require a 19mm wrench. It hasa lock nut on the top and bottom of the link body that holds it in place. Loosen the lock nuts and then the body can be adjusted, longer for lower rear height, shorter for higher rear height. Very convenient. Only issue is getting around the lower plastics on the Gen 1, dont know if you can reach the links on a Gen 4 with the lower plastics on.
I ride to the strip, lower the back end and race for the evening. When the night is over, wrench it back up to a streetable height and head home or wherever for the night. Its really easy and really convenient.
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