With traditional twin shock road bikes, the shock absorbers can have their springs pre-load adjusted for the extra weight with a simple tool. Some need a screwdriver blade, others a small "C" spanner, and others, like old-fashioned and uncool BMW's and MZ's had a built-in lever permanently attached to the bottom of the shock that could be turned by hand, instant adjustment.

These clever and trendy and cool monoshocks also have an adjustment. This takes the form of two locking rings that can be moved up and down on a thread on the body of the shock. They normally come from the maker with the rings halfway on the thread.
Moving the rings upwards will stiffen the suspension but they're not easy to reach or adjust. Progress...