Description
OnGuard 8028 Doberman Coil Cable Lock
Enhanced Security with Key Operation
The OnGuard Doberman Key 6′ Coil Cable Lock (8028) delivers secure, convenient protection for everyday cycling with the added security of a keyed locking mechanism. Featuring an X2P Power Double Bolt lock permanently forged to a medium-duty 185cm x 12mm self-coiling cable, this versatile lock provides reliable security for medium to low-risk situations whilst eliminating the potential vulnerabilities of combination locks.
X2P Double Bolt Technology
At the heart of the Doberman 8028’s security lies OnGuard’s X2P Power Double Bolt locking mechanism, which provides ultimate pull resistance through its dual-bolt design. This advanced lock head makes it significantly more difficult for thieves to force the mechanism open through pulling or prying attacks. The double-bolt system engages from both sides of the lock cylinder, creating a robust barrier that conventional single-bolt mechanisms cannot match.
Z-Cylinder Protection
Security extends beyond physical strength with the integration of OnGuard’s Z-Cylinder European-type tumbler mechanism. This sophisticated cylinder design offers optimum resistance against picking and bump attacks, whilst BumpBlok™ technology specifically prevents the lock manipulation technique that compromises many standard pin-tumbler locks. An automatic dust cover protects the cylinder from dirt, moisture, and contaminants that could impair lock operation, ensuring reliable performance in all weather conditions.
Medium-Duty Cable Construction
The lock features a 12mm diameter braided steel cable that extends to 185cm (6 feet) when fully stretched, providing excellent versatility when securing your bicycle to bike racks, street furniture, railings, or other fixed objects. Whilst the 12mm diameter offers a balance between flexibility and cut resistance, this lock is best suited for medium to low-risk environments or as a supplementary security measure alongside a primary high-security lock for frame protection.
Self-Coiling Convenience
The innovative self-coiling design automatically retracts the cable into neat, manageable coils when not in use, eliminating the frustration of wrestling with loose cable during rides. An attached hook-and-loop velcro strap keeps the coils contained and tidy during transport, preventing entanglement and ensuring the lock remains compact and manageable when mounted to your frame. This thoughtful design makes the Doberman 8028 exceptionally practical for daily commuting.
Comprehensive Paint Protection
Every contact point has been designed to safeguard your bicycle’s appearance. The entire cable features a thick vinyl coating that prevents scratches, scrapes, and paint damage to your frame, wheels, and components. The double rubber-coated lock head cover provides additional protection at the locking mechanism, whilst a reinforced sleeve over the crossbar and cylinder adds extra security without compromising your bicycle’s finish.
Five Laser-Cut Keys
The Doberman 8028 includes five precision laser-cut keys, providing ample spares for different locations (home, office, bag) and ensuring you’re never locked out if one key is misplaced. OnGuard’s laser-cutting process creates keys with precise tolerances that operate smoothly in the cylinder whilst being extremely difficult to duplicate without authorisation, adding an extra layer of security to your bicycle protection.
Permanent Forging for Added Security
Unlike cheaper cable locks where the lock head can be separated from the cable, the Doberman 8028 features permanently forged connections between the lock mechanism and cable ends. This eliminates a common vulnerability point found in lower-quality cable locks, ensuring that thieves cannot simply detach the lock head from the cable to defeat your security.
OnGuard Security Rating
The Doberman 8028 achieves an OnGuard security rating of 40 out of 100, positioning it as suitable protection for medium to low-risk situations. This makes it ideal for quick stops at supervised locations, securing bikes in well-monitored public spaces, or as a secondary lock to secure wheels and accessories when used alongside a primary U-lock or chain lock for frame protection.
All-Tube Twist Lock Mounting
The lock includes OnGuard’s redesigned All-Tube Twist Lock mounting bracket, offering improved ease of use over previous generations. The universal bracket attaches securely to any tube diameter on your bicycle frame without requiring tools. Simply insert the lock’s integrated “T” fixture into the bracket and twist to secure. To release, push the orange release lever and twist—carrying your lock has never been easier. The bracket keeps the coiled lock stable and rattle-free during rides.
