Brinks Outdoor 2-in Shackle x 1.75-in Width Stainless Steel Keyed Padlock in the Padlocks department at Lowes.com
Amazon.com: FIROS Motorcycle Chain Lock 3.15FT Heavy Duty Anti-Theft Bike Chain Locks 10mm Thick Cut Proof Bicycle Chain Lock with 16mm Disc Lock for Motorcycles, Scooters, Bike, Generator, Gates, and More :
Master Lock Heavy Duty Outdoor Padlock with Key, 2 in. Wide, 2-1/2 in. Shackle M5XKADLJCCSEN - The Home Depot
Master Lock Heavy Duty Outdoor Padlock with Key, 2-1/2 in. Wide M930XKADLHCCSEN - The Home Depot