Do mechanical attitude indicators have rotation limits?
They do. When an attitude gyro is rolled or pitched beyond its limits, the gyro gimbals hit their stops and the instrument is said to &quot;tumble&quot;.
Tumble resistance is more important in military craft, which traditionally use a gimbaling mechanism that can withstand any amount of roll without tumbling- which differs from those used in GA aircraft.
These two types of attitude indicators have names, and I invite the experts on this site to furnish them.