Aftermarket motorcycle stabilizer that attaches to motorcycle crash bars without making irreversible structural modifications to the motorcycle frame. The device is optimized to supplement motorcycle stability during intermittent periods of stopping or very slow speed operation. The stabilizer operates by way of a fixture (often a two part fixture) designed with various complementary indentations designed to allow the two parts of the stabilizer fixture to clamp onto different types of motorcycle crash bars. A pivoting arm is also attached to the fixture, along with an electronic actuator attached to both the arm and the fixture. The actuator raises or lowers the arm upon receiving appropriate manual or automatic signals. The opposite end of the arm has at least one small wheel. Thus extending the arm brings the wheel into contact with the ground, while retracting the arm will bring the arm generally flush with the motorcycle body.