Chain Bike Lock Heavy Duty 4-Digit Combination Bicycle Lock

Heavy Duty 4-Digit Combination Chain Bike Lock — 39", Cut-Resistant Manganese Steel, Waterproof Sleeve

A heavy-duty 4-digit combination chain bike lock made from extra-thick manganese steel with a zinc-plated coating for cut and saw resistance. 39" length and 3/8" chain thickness. Flexible cloth sleeve protects the chain from water and dust. Up to 10,000 possible combinations — no key required. Easy to set and reset to a personalised code. Available in Black, Grey, Blue, and Red. Weighs approximately 19oz. Suitable for bicycles, tools, spare tires, ladders, lawnmowers, gates, fences, toolboxes, and sports equipment.

Features

• KEYLESS 4-DIGIT COMBINATION LOCK: Up to 10,000 possible combinations for secure, key-free locking. Easy to set and reset to your own personalised code.
• CUT-RESISTANT MANGANESE STEEL: Extra-thick manganese steel chain with zinc-plated coating resists cutting, sawing, and corrosion for long-term durability.
• 39" FLEXIBLE LENGTH: Long enough to secure bicycles, tools, spare tires, ladders, lawnmowers, gates, fences, toolboxes, and sports equipment.
• WATERPROOF AND DUSTPROOF SLEEVE: Flexible cloth sleeve covers the full chain length to protect against water, dust, and surface scratches.
• EASY TO USE: Simple combination mechanism is quick to operate and straightforward to reset.
• PRODUCT WARRANTY: 90-day money-back guarantee. See our Shipping and Returns Policy for details.

Why Choose a Combination Lock

Combination locks eliminate the need to carry keys, making them convenient for everyday use. You can also share the combination with family members or friends when sharing access to equipment.

Frequently Asked Questions

• How many combinations are possible? Up to 10,000 — making it extremely difficult to guess.
• Do I need a key? No — it is a keyless combination lock. Set your own 4-digit code.
• Can I reset the combination? Yes — the combination is easy to reset to a new personalised code at any time.
• What is it made from? Extra-thick manganese steel with a zinc-plated coating and a flexible waterproof cloth sleeve.
• What else can it secure besides bikes? Tools, spare tires, ladders, lawnmowers, gates, fences, toolboxes, and sports equipment.

Specifications

• Length: 39"
• Chain Thickness: 3/8"
• Material: Manganese steel / Nylon sleeve
• Coating: Zinc-plated
• Weight: Approx. 19oz
• Colour Options: Black / Grey / Blue / Red

Package Includes

• 1 x Chain Bike Combination Lock