OnGuard PitBull Medium U-Lock - $52.95

OnGuard PitBull Medium U-Lock features a medium-length shackle and a mini-size crossbar to make it easy to reach locking points without having to deal with a bulky, wide lock shackle. Burly 14mm (0.55 in.) hardened steel shackle resists cutting, prying and jacking; rubber-coated shackle and crossbar help protect your bike's finish. X4P Quattro locking mechanism secures the shackle to the crossbar in 4 places, maximizing strength to resist pulling, jacking, prying and twisting. Z-Cylinder tumbler is bump-proof and resists picking, pulling or drilling. Rounded design and centered keyhole eliminate pry points; all-metal end caps protect against drops and hits while the auto-closing keyhole cover protects lock internals. Comes with 5 laser-cut keys, 1 of which has an integrated LED light; mounting bracket Included. OnGuard rates the PitBull Medium U-lock as an 80 out of 100 on their 100-point security rating system, where higher-rated locks offer increased security. - $52.95