Our ultimate motorcycle and scooter disc lock for urban and other high theft Case-hardened 1/2" (13 mm) Kryptonium(tm) Steel shackle defies bolt cutters, saws, hammers and chisels to provide maximum security New PikSafe disc-style cylinder- virtually pickproof Steel sleeve over crossbar provides double security protection Double deadbolt locking mechanism for extensive holding power Sliding dustcover protects cylinder,compact and weatherproof $750 (USD) Anti-theft Guarantee in USA and Canada 2.3"x2.2"(5.8cmx5.6cm) 1.48 lbs. (0.67 kg) Limited Lifetime Warranty