There are also good reasons for the speed limits.
Increased lift impacts uca ball joint angle and wheel alignment.
Stiffer ride
Fuel economy
As mentioned above, there are ways to trick the system but added risk as well. Several have broken air ride sensors from using adjustable links. Someone has developed flexible links that are 3d printed.
The dealer can also adjust the parameters in the system but they do it mostly to correct any low corners, if at all.
There is a company that has developed an application for 4th gen that allows access to the air ride system. I'm not sure exactly what parameters can be changed.
Many 4th gen Rebel owners have added daystar 2.5 inch spacers and adjustable links which retains the stock ride but requires disconnect/reconnect of the air ride supply lines. I've been advised by my service guy that if This is done, the system should be recharged and recalibrated due to loss of nitrogen in the air strut.
Lots of options, but each has some degree of risk.