Designed to discourage roll-away theft , this rugged lock easily attaches to your disc brake and sounds a piercing alarm if the motorcycle is moved. •Physical movement triggers a piercing 120dB audible alarm that acts as an additional theft deterrent • Audible alarm can be deactivated by key if only mechanical security is desired • 0.23 in (6 mm) diameter hardened-steel locking pin • Corrosion resistant • Includes two keys , high visibility reminder cord , and Lithium (CR2) battery • Limited lifetime manufacturer warranty 2-year battery warranty • Free key registration and replacement program • Optional Anti-Theft Protection available , reimbursement up to $500 (£300)(€400)