Cutoff

The wheel stops driving the motor because a known mechanism fired: lift sensor, motor cut-off button, anti-spin button, roll or angle protection, transport mode, or another firmware condition. It is not automatically a broken wheel. Often, it is designed behavior.

Cutoff vs cutout

Clean technical language: cutoff is designed behavior, cutout is an unintended loss of power or balance, and overlean/overtorque is the rider asking for more torque than the wheel can deliver. Useful distinction. Not a universal community standard. Many riders still call almost any sudden power/balance event a “cutout.”

When it catches you off guard

Designed does not mean harmless. A lift sensor that false-triggers during maneuvering, a motor cut-off button hit at the wrong moment, or angle protection you did not understand can still put you on the ground. Also: do not generalize from one model. Some wheels cut motor power from a handle sensor. Some require a button. Some only do it below certain speeds or angles.

What to check

After the incident, ask: was the wheel still on? Did it throw alarms, tiltback, speed limits, or app warnings first? What were PWM, battery, speed, board temperature, and logs doing? Can you repeat the condition slowly and safely? If yes, you may be looking at a cutoff condition, not a random failure.

555 take

Know your wheel’s cutoff conditions. Read the manual. Test lift behavior and motor cut buttons at walking speed, unloaded, in a safe place. A cutoff you understand is a feature. A cutoff you discover mid-ride is just another way to crash.