Motorcycle Chain Locks 100cm - Heavy Duty Cut Proof Security

In this review of the BIGLUFU Motorcycle Chain Lock the bottom line is simple: this is a heavy duty, overtly robust chain lock best suited for riders and owners who prioritize cut resistance and physical security over low weight. The 12 mm square-linked chain and 3T manganese steel construction deliver the single biggest benefit - notable cut and shear resistance - while the water-resistant nylon sleeve protects finishes when the chain is wrapped around a bike or gate. It is a practical choice when strength matters more than compactness.

Key Features

• 3T manganese steel: Provides very high tensile and shear resistance so the chain resists most casual cutting and leveraging attempts.
• 12 mm square links: The thick square-linked profile increases cut resistance and makes the chain harder to grip with bolt cutters.
• Nylon sleeve: A water-resistant sleeve prevents the chain from scratching paint and reduces weather exposure to slow corrosion.
• Included U lock and keys: The package includes a 14 mm zinc alloy U lock and four ergonomic stainless steel keys so users can lock multiple bikes or secure to fixed objects.
• Two length options: Available in shorter and longer lengths (48 cm and 120 cm) so users can choose a size that fits their routine locking needs.
• High chain profile: Chains are constructed from multiple 5 cm wide links that add mass and deterrence to deter opportunistic theft.

Who It's For

The lock is aimed at motorcyclists, scooter owners, and anyone who needs a heavy, cut resistant chain for securing bikes, generators, gates, or outdoor equipment. It works well for those who regularly park in urban areas or leave equipment in semi-public spaces where physical attacks are a realistic concern.

It is not ideal for riders who need a lightweight or compact everyday carry solution; the chain's weight and size are deliberate trade-offs for strength. If portability and minimal weight are primary concerns, look for a lighter lock designed for convenience rather than maximum cut resistance.

Pros & Cons

Pros

• Very strong chain construction provides excellent resistance to cutting and shear attacks.
• Nylon sleeve protects bike finishes and resists water to reduce surface wear.
• Includes a sturdy U lock and four durable keys so you have everything needed to secure multiple items.
• Available in longer lengths to secure several bikes or wrap around large fixed objects.

Cons

• Relatively heavy, which can be inconvenient for daily carry and storage.
• Some users report variability in overall lock quality and welding on the ring, so inspect weld points if possible.

Specifications

Our Verdict

The BIGLUFU Motorcycle Chain Lock is a solid value for anyone who needs a physically robust, cut resistant solution for motorcycles, bikes, or outdoor equipment. Its thick 12 mm square links, manganese steel construction and protective sleeve make it a sensible deterrent where weight is a secondary concern; buyers who need lighter portability should consider alternatives.

Frequently Asked Questions

Is this lock weather resistant?
The chain is wrapped in a water-resistant nylon sleeve to reduce moisture exposure and protect finishes, though metal components should still be kept dry when possible.

Can the lock secure multiple bikes?
Yes, the longer 120 cm length is long enough to lock two to four motorcycles or several bicycles together depending on how it is routed.

What should I know about the keys?
The lock comes with four ergonomic stainless steel keys; insert the key fully into the cylinder to avoid the key sticking or failing to turn.