A patch over in motorcycle clubs is the replacement of one club’s identity patch with that of the new, and usually larger, club's patch. These patches are referred to as colors.
The patch over is just like a large company's takeover of a smaller company. It replaces the smaller group's name and logo with its own. The former club's colors are removed from the back of the member’s jacket or vest, and the new club name and chapter along with the owner's name and rank are added.
A motorcycle club may assimilate a smaller club for many of the same reasons a corporation merges or absorbs a smaller business. It may want to enlarge its territory, increase its workforce or utilize a specific aspect that the smaller group has to offer.