MAGNUM disc locks feature:

• X4 and X2 locking mechanisms secure both sides of the shackle

• Hardened steel shackles are impervious to prying, jacking, or cutting

• Rubber coatings protect delicate finishes

• Carrying case and disc reminder included Alarm disc locks: built-in motion sensor produces a high, piercing alarm if bike is disturbed or to warn against accidental drive away.