A bicycle lock in the form of a cable lock includes an elongated lock body and a cable having first and second ends. The first end is fixed to one end of the elongated lock body and another end of the lock body has an insertion opening for an insertion pin that is attached to the second end of the cable and provided with two lateral, diametrically opposed recesses that are oriented parallel to a longitudinal direction of the lock body. Two locking bolts are insertable into the recesses in a translatory manner in the longitudinal direction of the lock body for securing the insertion pin in the lock body. The locking bolts form a part of a locking device. A driver, which lies with inner ends in an effective area of the drive, is rotatable by means of a closing cylinder. By actuation of the closing cylinder, the locking device is drivable in the longitudinal direction of the lock body. The locking device has a first section extending in the longitudinal direction of the lock body and a second, bracket section oriented perpendicular to the lock body longitudinal direction on its outer end. The locking bolts, which are preferably cylindrical, are insertable into the first and second sections on opposite sides of the bracket section.