ABUS U-Lock Granit Power 58/140HBIII - Heavy Duty Motorcycle Bike Lock with Double Locking Mechanism - Security Level 18 - 100mm Shackle Height - Ideal for Parking, Commuting & Theft Protection

This is the finest of all padlocks. This is one solid lock , with a shroud around the shackle to prevent bolt cutters. Very heavy. I use a 1/2 inch square chain for my e-bike with this lock and don't worry anymore. Very Satisfied.