Large 55mm x 55mm (2.17" x 2.17") opening fits large disc and rotor openings. Massive 16.8mm (0.66") hardened steel shackle resists all attack from cutting, prying or jacking. X4P Quattro Bolt locking system secures the shackle on four sides for ultimage protection. Included disc reminder helps prevent accidental drive offs.
SECURITY RATING: 97 LOCK SERIES: Boxer TECHNOLOGY: X4P POWER SPORT PROTECTION: 751 BIKE PROTECTION: no FOR POWERSPORTS: yes FOR BIKE: no