You can’t retire. You don’t just become a member and you don’t just stop. As Hells Angels you cannot just decide to call it quits. You are a member for life. You can get kicked out of the club, but in that case you probably didn’t abide by the rules.
Failure to follow rules has its consequences. Members should take the rules and the organization very seriously. You can get kicked out of the club if you don’t follow the Hells Angels code. To outsiders this may sound mild, but for an Angel this is the absolute worst-case scenario. Oh, and then there are these stories of the Hells Angels logo tattoos being burned off in the most gruesome ways. So, it’s better to adhere to the rules when you join the club.