Black

OnGuard

<p>Built to guard your gear in medium to high-risk areas, the Mastiff Series brings muscle and innovation to the table. With tough, titanium-reinforced links and advanced locking tech, these chain locks offer dependable security—and a few thoughtful extras, too.</p><ul><li>Titanium-Reinforced, Hardened Steel Chain that’s designed to resist cutting, sawing, and prying attempts—these links don’t back down</li><li>Paint-Safe Chain Cover A durable fabric sleeve keeps your bike’s finish flawless. The embroidered logo adds style that won’t fade or flake</li><li>Smart Locking Power with the X2P Double Bolt that has a dual-point lock for ease of mind</li><li>Bump-Proof Z-Cylinder Advanced tumbler resists picking, pulling, and drilling—so your lock doesn’t become the weakest link</li><li>Tough co-molded crossbar cover protects from scuffs, while all-metal endcaps take the hits and drops without flinching</li><li>Weather-Ready automatic keyway cover keeps the internals clean and dry—even in messy conditions</li><li>With 5 laser-cut keys, including 1 with a micro-LED light for easy nighttime access</li></ul>

Mastiff Chain Lock with Integrated Key Black

OnGuard Mastiff Chain Lock with Integrated Key

Save an extra 20% off clearance footwear, discount applied automatically in cart. Hurry while supplies last.

Extra 20% off clearance footwear

MEC Rewards Members get 20% off most brands. Sign in and enter code 20OFFC in check-out. Shop now

Check out a roundup of our fave Canadian brands

New Year's Day

Family Day

Good Friday

Easter Sunday

Easter Monday

Victoria Day

Canada Day

Civic Holiday

Labour Day

National Day of Truth and Reconciliation

Thanksgiving

Remembrance Day

Black Friday

Christmas Eve

Christmas

Boxing Day

New Year's Eve

BC Day

Saint-Jean-Baptiste Day

Special Hours

National Day of Truth and Reconciliaton

OnGuard Mastiff Chain Lock with Integrated Key

AI instant answers

Compare (0)