ROCKBROS Bike Lock, 22mm Heavy Duty Bicycle U Lock Anti Theft

• STURDY & DURABLE: This Bicycle U Lock is made of thickened high-strength alloy steel with 22mm lock body and 14mm lock beam, weighing around 805g for solid anti-deformation performance. Full soft silicone outer cover prevents scratches and collision damage to bike frames, resisting wear and rust for long-term outdoor use
• ANTI-THEFT SECURITY: Withstands 12-ton hydraulic bolt cutters. Thickened hardened lock beam resists grinding and cutting. Built-in zinc alloy lock cylinder paired with serpentine groove keys is hard to duplicate, offering anti-drill & anti-pry protection to effectively prevent theft
• 3 ORIGINAL KEYS: Comes with 3 original keys as spares to avoid lockout caused by lost keys. Unique key grooves deliver low mutual opening rate, freeing you from worries of missing keys during daily rides
• EASY LOCKING OPERATION: User-friendly U-shaped opening design with large inner space for quick alignment. Simply insert the key to lock/unlock with one hand, saving your time whether for short roadside stops or long-time parking
• WIDE APPLICATION SCENARIOS: Extended U-shape inner size fits road bikes, mountain bikes, folding e-bikes, motorcycles and more. A dedicated mounting bracket is included for easy storage on vehicle frames, ideal for daily commuting, cycling and short trips

ROCKBROS Bike Lock, 22mm Heavy Duty Bicycle U Lock Anti Theft High Security with 3 Keys & Mount Bracket for Road Mountain Electric Folding Bike Scooter Motorcycle,Black Brand: ROCKBROS Material: High-strength Alloy Steel, Zinc Alloy Lock Cylinder, Silicone Outer Cover Weight: 805g Steel Beam Diameter: 14mm Lock Body Diameter: 22mm Color: Black