Master Lock No. 8184 All Terrain U-Lock

Master Lock 8184 All Terrain U-Lock: Master Lock No. 8170D Series Bike Lock, Extra Wide U-Lock for Mountain Bikes, with 9-Inch Clearance. Master Lock $1,000 Anti-Theft Guarantee!   Master Lock No. 8184 All Terrain U-Lock Carrier Bracket Included Master Lock $1,000 Anti-Theft Guarantee! Hardened Steel Body Resists Cutting and Sawing Extra Wide U-Lock Designed for Use with Mountain Bikes Integrated Disc Keyed Locking Mechanism for Maximum Pick Resistance Double Locking Shackle Withstands 3.5 Tons (3.2 Metric Tons) of Pull Force Keying: Each Lock Comes Keyed Different (KD), with 2 Keys that Cannot be Matched Specs_Width: 8-1/4" Wide; A: 9/16" (14mm) B: 9-1/2" (24cm) C: 5-1/8" (13cm)