Foldable Bicycle Lock with High Security, 5mm Alloy Chain, Anti Theft

Secure your ride with confidence using the Foldable Bicycle Lock with High Security. This chain lock combines a 5 mm thick high-strength alloy core with a robust ABS outer wrap, delivering cut-resistant, shear-resistant protection that stands up to everyday urban challenges. Built for practicality and peace of mind, it’s designed to deter theft while staying lightweight and portable for on-the-go cyclists.

The lock features a Class B double-sided blade locking cylinder with internally milled teeth on both sides, making universal keys and common unlocking tools ineffective. Unlocking is simple and intuitive—no need to worry about which side of the key is facing you. The eight joints rotate 360 degrees, allowing full flexibility to wrap around bike frames, racks, and fixed objects. A fully closed ABS outer layer on the chain prevents rust and weather wear, while reinforced rivets enhance wear resistance and reduce deformation. Security level is up to 7, keeping your bike safer when you’re away.

The chain is available in multiple lengths (83 cm, 94 cm, 100 cm, 120 cm) to suit different bike setups and locking scenarios. The folding design makes it easy to carry and store, with a folded size of 164.5 mm by 58.7 mm. The cantilever bracket is adjustable to fit different seat tube diameters, securely attaching the lock to the bicycle without scratching paint. A sturdy rubber band on the bracket top helps keep the latch in place and easy to grab, even when you’re on the move.

Benefits & Tips

• Versatile locking reach: Choose the right chain length (83–120 cm) to lock your bike to fixed objects with space to spare.
• Flexible, compact design: Folded lock fits neatly in bags or on the bike frame, ready for quick stops and easy transport.
• Easy to use and secure: The B-class cylinder with complex internal teeth improves security while remaining simple to operate.

Product specifications

• Brand: Choice
• Material: 5 mm thick high-strength alloy chain, alloy steel, ABS plastic (outer layer)
• Origin: Mainland China
• Type: Chain
• Size options: 83 cm, 94 cm, 100 cm, 120 cm
• Security level: Up to 7
• Lock cylinder: Class B double-sided blade
• Folding design: 8 joints, 360-degree rotation
• Folded size: 164.5 mm × 58.7 mm
• Bracket: Adjustable cantilever bracket for different seat tube sizes; rubber top to secure the latch
• Features: Reinforced rivets for wear resistance and reduced deformation

Package includes:

• Foldable bicycle lock
• Adjustable cantilever mounting bracket

Warnings / Reminders

• All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

At intercyprus.com since 2002 — trusted for quality and reliability.