How do I adjust the rear shocks on a Honda Shadow???

SOURCE: adjust rear shocks

YOU should have a tool for that in your tool bag under the seat.

SOURCE: Any way to adjust the rear shocks on a 1996 vulcan 1500-a10 ?

on the bottom chrome band there are like four holes. in your tool kit there is a "thing-a-ma-gidgette" (i call it this because it looks like one, it is actually a "spoke wrench"). the tail of the spoke wrench will fit in the 4 holes Righty tighty so it feels weird: one side you are turning towards the front one side towards the back.

SOURCE: 2000 honda shadow sabre shock adjusted too far.

how do you adjust rear shocks on a Honda 1100 shadow???

SOURCE: how do you stiffin the rear shocks on a 2002 honda

Not positive about this bike... I have an older bike that has a step positioner that requires a special tool (you can use a pair of channel-locks). The higher you go the stiffer the ride the lower you got less tension on the spring, so the easier the ride. New bikes (like yours) sometimes have a nitrogen filled assist canister with a flat head screw. That flat head screw should have an arrow pointing in both right and left directions, on one end is a pos. (+) symbol and the other is a minus (-). Turn toward the pos for a stiffer ride, toward the min a softer ride!!

Good Luck

SOURCE: Front brake too stiff on 1984 Honda Shadow VT500C Shadow

You should have disc brakes??? They are not adjustable.
It is common for a caliper piston to freeze up or become corroded and bind up so it will not move freely.