BIGLUFU Motorcycle Chain Lock 5ft x 12mm — Square-Link Manganese Steel with Hardened U-Lock and Nylon Sleeve

The BIGLUFU Motorcycle Chain Lock is a heavy-duty 5 ft (150 cm) anti-theft chain with a 12 mm square-linked manganese steel construction, a reinforced U-lock, nylon sleeve and four stainless-steel keys for secure long-term bike and motorcycle protection.

Whether you park a motorcycle, scooter, or leave gear in a shared garage, choosing the right lock matters. This chain lock blends mass and cut resistance with a wear-resistant sleeve and a hardened U-style shackle so you can anchor multiple vehicles or valuables with confidence. It aims to make opportunistic thefts and quick bolt-cutter attacks much harder while remaining portable enough for everyday use.

How does the chain resist cutting and leverage attacks?

The chain core uses 3T manganese steel in 12 mm square links designed to absorb and deflect cutting force. The separate U-lock shackle is built from 14 mm hardened zinc alloy with a thick protective coating to resist pry and leverage attempts.

• 12 mm square-linked manganese steel chain rated to withstand high tension and shear loads
• U-lock with 14 mm hardened zinc alloy shackle for added pry resistance
• Anti-theft lock cylinder to deter picking when the key is inserted fully

Will the chain scratch my bike or other surfaces?

The chain is sheathed in a water-resistant, scratch-proof nylon sleeve that prevents metal-to-paint contact and reduces wear during transport. The sleeve also helps repel light moisture and keeps chains from rusting as quickly when exposed to the elements.

• Durable nylon cover protects vehicle finishes and reduces noise
• Water-resistant fabric slows moisture exposure to the metal underneath
• Snug fit keeps chain links from rubbing directly on frames or bodywork

How much can I secure with this 5-foot length?

At approximately 150 cm (60 inches), the chain provides enough reach to lock several items together or fasten a bike to larger fixed objects like posts, rails, or a ground anchor. Its length and flexibility let you wrap around multiple motorcycles, gates, or bulky tools.

• 150 cm length suitable for locking 2–4 motorcycles or anchoring large equipment
• Flexible links adapt to irregular anchor points such as fences or posts
• Compact enough to carry yet long enough for communal parking situations

What comes in the box and how easy is it to use?

The package contains the wrapped chain, a robust U-lock and four ergonomic stainless-steel keys. The keys have a solid feel to prevent bending; follow the lock cylinder guidance and insert keys fully to avoid a stuck mechanism.

• One 150 cm x 12 mm square-link chain with protective nylon sleeve
• One 14 mm zinc-alloy U-lock with PVC coating
• Four durable stainless-steel keys and an anti-theft cylinder design

Who is this for? The BIGLUFU Motorcycle Chain Lock is designed for motorcyclists, scooter owners, and anyone who needs a portable yet rugged security solution for vehicles and outdoor equipment. It's well suited to commuters, students, garage users and householders who want a higher level of cut resistance than standard cable locks provide. If you need to secure multiple items or prefer a flexible chain that resists bolt cutters and leverage tools, this lock offers practical protection and convenience backed by customer support.