The GB 17761-2018 test rod for exposed protrusions of electric bicycles is used for testing "protrusions of electric bicycles" in the GB17761-2018 standard. The GB 17761-2018 test rod for exposed protrusions of electric bicycles is used for testing "protrusions of electric bicycles" in the GB17761-2018 standard. Use a protruding object test cylindrical rod (simulating human limbs) that complies with the provisions of 3.9 in GB 3565-2005 for detection. The front and rear wheels of the test vehicle are on the ground, and the body is perpendicular to the support surface. The test cylindrical rod is placed in various possible positions close to the exposed protrusions on the test vehicle. Any protruding object that can be reached by a 75mm long section in the middle of a cylindrical rod is considered an exposed protrusion; Measure the shape and dimensions specified in 4.2 of GB 3565-2005 using a vernier caliper and radius gauge.