OnGuard Bulldog Series U-Locks 45008015

- Double Bolt Locking Mechanism provides added strength by locking the crossbar to the shackle on two sides\n- Features 13mm ultra hardened steel shackles for maximum cut resistance\n- Dust covers and vinyl coating protects the crossbar, shackle and cylinder from damage\n- Includes multi-size/multi-position mounting bracket, (5) keys (1 with micro-light and 4 regular keys), plus OnGuard's anti-theft protection plan\n- LS: long shackle model for added convenience \n- STD: sized to fit most any bike on the market\n- LM: Lean and Mean is the lightest full size U-lock on the market\n- DT: includes four foot cable with lock loops on each end\n- Combo: features user resettable 4-digit combination\n- Mini: short shackle model fits in a back pocket\n- Medium: slightly longer than Mini