Kryptonite Keeper 712 Integrated Chain Lock – 4ft (120cm)

7mm Hardened Steel • Disc-Style Cylinder • Moderate Security (5/10)

🔒 Trusted Everyday Security from Kryptonite

The Kryptonite Keeper 712 delivers strong, reliable protection in a flexible 4-foot chain design — ideal for bikes, e-bikes, scooters, and outdoor equipment.

Built with hardened manganese steel and patented locking technology, it’s designed to resist common theft attempts while remaining easy to use.

💪 Heavy-Duty 7mm Hardened Steel Chain

• 7mm four-sided chain links

• Made from 3T manganese steel

• Resists cutting and leverage attacks

• Strong deterrent against common hand tools

Durable enough for daily urban parking.

🔐 Patented High-Security Locking System

• Patent-pending End Link Design eliminates weak points

• Secures chain directly to a hardened deadbolt

• High-security disc-style cylinder resists picking and drilling

• Includes 2 keys

Engineered to provide dependable anti-theft protection.

🛡 Weather-Resistant & Bike-Friendly

• Durable nylon sleeve protects painted finishes

• Shields chain from weather and corrosion

• Rubber coating helps reduce wear and scratches

Built for long-term outdoor use.

📏 Product Specifications

• Chain Length: 48 in (120cm / 4ft)

• Link Thickness: 7mm

• Weight: 3.75 lbs (1.70kg)

• Security Rating: 5/10 (Moderate Security)

• Lock Type: Disc-style cylinder (keyed)

Ideal for moderate-risk areas.

🔑 Key Safe Program

Register your unique key code and Kryptonite will ship your first 2 replacement keys free worldwide if lost.

🚴 Flexible & Easy to Use

The 4ft length provides greater locking flexibility compared to shorter chains — making it easier to secure your bike to racks, poles, gates, and fences.

🔒 Lock with Confidence

The Keeper 712 offers dependable Kryptonite protection in a flexible, heavy-duty chain design — perfect for commuters and everyday riders.

👉 Add to Cart and Secure Your Ride Today