Factory Wholesale Bicycle Parts Bicycle Lock Suit for All Kinds of Bikes

The bicycle chain lock body is made of aluminum alloy, which is cylindrical, with a diameter of about 25 mm and a length of about 5 cm. The lock core is made of copper and installed in the central part of the lock body. This lock is connected to an iron chain with a thickness of about 6 mm at one end of the plane of the lock body. The whole iron chain is wrapped by plastic hose, and the length of the chain is about one foot eight inches. The other end of the chain is connected with a steel lock stud head. There is a circular groove around the lock cylinder head. There is a round hole on the plane at the other end of the lock body, that is, the lock column hole, which just fits the lock column head. There is a lock pin connected with the lock core in the round hole.

The anti-theft lock is composed of a lock head, an inner lock seat, and an insertion rod. The lock head and the inner lock seat are fixed on both sides of the horizontal bar of the bicycle rear wheel frame with screws and connecting devices. The insertion rod passes through the rear wheel, the inner lock seat, and is fixed on the lock head. The inner lock seat is provided with a through hole with a necking in the middle perpendicular to the insertion rod. On both sides of the necking, one end of the necking is inserted with a locking pin that can be embedded between the flywheel teeth and is sleeved with a spring. The locking pin passes through the necking and is hinged with the pull pin rod, The locking pin is provided with a notch that can be clamped with the insertion rod. When in use, one end of the lock pin is pushed between the flywheel teeth by the spring, and then the insertion rod is inserted into the lock head to lock, so the flywheel and the wheel cannot rotate.