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Master Lock Motorcycle Helmet Lock Review: Secure, scratch-free helmet storage

Master Lock Motorcycle Helmet Lock- #99KA - 2 Keyed Alike
4.5
[Keyed Alike Option]  Buy up to 8 keyed-alike locks (four 2-packs) for shared-key convenience.
[Compact 14" Cable]  14" (35 cm) vinyl-covered cable with 5mm diameter for flexible, secure locking.
[Scratch-Protective Cover]  Attractive plastic cover prevents helmet scratches and scuffs.
[4-Pin Tumbler Security]  Durable 4-pin tumbler lock offers reliable pick resistance.
[Dead-Locking Mechanism]  Dead-locking design prevents forced opening, keeping the lock securely closed.
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Home improvement accessory that secures helmets to a bike while protecting finishes. Ideal for riders who want straightforward security without worrying about scratches, Master Lock Motorcycle Helmet Lock suits commuters and weekend tourers alike. Is a compact cable lock with keyed-alike options the right balance of convenience and protection?

⚡ At a Glance
  • Security: 14 inch vinyl-covered cable, 5mm diameter and 4-pin tumbler lock
  • Best for: Commuters and casual riders who need quick helmet security
  • Not ideal for: Securing a motorcycle against determined theft during long unattended periods

Compact vinyl-covered cable with a 4-pin tumbler gives basic theft resistance. A dead-locking mechanism helps prevent rapping the lock open.


Keep helmets scratch-free, with a plastic lock cover

An attractive plastic cover fits over the lock body to prevent direct metal contact with helmet surfaces. The cover sits between the lock and shell while the cable secures the helmet.

Protects painted and polished finishes during everyday locking and storage, reducing cosmetic damage over time.

Reliable short-term security, with a dead-locking mechanism and 4-pin tumbler

Dead-locking design resists forced opening by preventing levered rapping, while a 4-pin tumbler adds standard mechanical resistance. A 14 inch vinyl-covered cable, 5mm in diameter, forms the physical anchor.

Gives dependable defence for quick stops and routine use, suitable for rides where convenience and basic security are priorities.

Simplified key management, with keyed-alike availability

Up to eight locks can be supplied keyed alike, effectively allowing up to four 2-packs to share the same key when purchased through the merchant. The product is supplied as a 2 keyed-alike pack.

Makes carrying a single key practical for households with multiple locks, reducing key clutter and speeding up locking.

✨ The 4 Key Reasons for Master Lock Motorcycle Helmet Lock
  1. Keyed-alike option – One key operates multiple locks, cutting down on spare keys
  2. Two-pack format – Two locks included, handy for rider and passenger or two bikes
  3. Short cable length – 14 inch length keeps helmet close and quick to secure
  4. Plastic lock cover – Soft cover protects helmet finish during regular use
📋 Technical Details at a Glance
  • Category: Home Improvement
  • Brand: Master Lock
  • Model: #99KA
  • Product ID: B002O00GM6
  • Pack contents: 2 keyed alike locks (two-pack)
❓ Frequently Asked Questions

Q: Can I get multiple locks keyed alike?

A: Yes, up to eight locks can be supplied keyed alike, which equates to four 2-packs keyed the same when purchased directly from the merchant.

Q: How long and thick is the cable?

A: The cable is 14 inches (35 cm) long and has a 5 mm diameter, with a vinyl covering for surface protection.

Q: Will the lock scratch my helmet?

A: A plastic lock cover is included to prevent scratching the helmet during use.

🏆 Our Verdict

Suitable for commuters and riders who need quick, scratch-free helmet security. The combination of a vinyl-covered cable, dead-locking mechanism and keyed-alike option makes key management and routine use straightforward. Strong long-term value for those seeking low-maintenance protection and reduced cosmetic wear.