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Master Lock Chain Lock - Black

Master Lock Chain Lock - Black

The Master Lock Chain Lock offers universal application for all types of bikes, including road, mo...

Best current price£22.95from eBay

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eBayMaster Lock Chain Key Lock 8mm X 90cm 8391 Black
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£22.95
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Leisure Lakes BikesMaster Lock Chain Key Lock 8mm x 90cm Black
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£24.99
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OnBuy.comMaster Lock Bike Chain Lock [Key] [90 Cm Chain] 8391Eurdpro - Ideal For Bike, Electric Bike, Mountain Bike, Road Bike, Folding Bike
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£35.05
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Product Information

Full details

This guide helps cyclists of all types – from road and mountain bikers to e-bike users – understand and use the Master Lock Chain Lock effectively. The key benefit is enhanced security against theft, thanks to its hardened steel chain. A key consideration is the need to remember your keys for access. This guide covers key features, usage, care, and troubleshooting to help you make the most of your Master Lock Chain Lock.

All features

ColourBlack
Model Part Number3520190929419
BrandMaster Lock

Extended Product Information

FAQs

What is the chain made of?

The chain is made of hardened steel for maximum security.

Is the lock weatherproof?

While the lock is suitable for outdoor use, it's best to protect it from extreme weather conditions to prolong its life.

How many keys come with the lock?

The lock comes with two keys.

What is the length of the chain?

The chain is 90 cm (900 mm) long.

Does the lock scratch my bike?

No, the chain has a nylon cover to protect your bike from scratches.

What type of bike is this lock suitable for?

The Master Lock Chain Lock is suitable for road, mountain, folding, and electric bikes.

What is the warranty on this lock?

The lock comes with a Limited Lifetime Warranty.

How do I lubricate the lock?

Use a graphite-based lubricant specifically designed for locks. Avoid using oil-based lubricants as they can attract dirt and grime.

Troubleshooting

Key doesn't turn in the lock.

Try lubricating the key cylinder with a graphite lubricant. If the issue persists, try a different key, and if necessary, contact Master Lock customer service.

Chain is difficult to maneuver or lock.

Ensure that the chain is free from debris. Clean the chain and the lock mechanism. Consider using a lubricant to aid smooth operation.

Lock appears to be jammed or stuck.

Try wiggling the key while applying slight pressure to the lock. If that doesn't work, apply graphite lubricant and allow it to penetrate. If the lock is still stuck, contact Master Lock customer service.

Pros and Cons

Pros

  • High security provided by the hardened steel chain.
  • Protects against scratches with a durable nylon cover.
  • Suitable for a wide range of bike types and outdoor use.
  • Comes with a Limited Lifetime Warranty.
  • Ease of use due to the key-based locking mechanism.

Cons

  • Requires carrying keys for access.
  • Key-based system means potential for key loss.
  • May be heavier than some other lock types.
  • The 90cm length might not be ideal for all locking scenarios.
  • Dependent on key cylinder for security, which may be vulnerable to advanced attacks

Setup, Compatibility & Care

  1. Setup: Simply wrap the chain around your bike frame and the object you want to secure. Insert the key and lock the chain.
  2. Compatibility: This lock is compatible with all types of bikes, including road, mountain, folding, and electric bikes. It's suitable for both indoor and outdoor use.
  3. Care: Keep the chain and key cylinder clean and dry to prevent rust and ensure smooth operation. Lubricate the key cylinder with a suitable lubricant periodically to maintain functionality. Avoid exposing the lock to extreme weather conditions for extended periods.

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