OnGuard OG 5815
Best heavy duty security for urban bicycle commuters.
A reliable, dual-component security solution that pairs a hardened steel U-lock with a flexible cable for comprehensive bike protection. It offers essential resistance against common theft tactics like drilling and picking, making it a dependable choice for everyday commuters.
$29.99
at
Lama Cycles
More Bulldog options
Who it's for
- Urban cyclists parking in high-theft areas for extended periods
- Owners of premium frames concerned about cosmetic damage
- Commuters who frequently lock their bikes in low-light conditions
Who should skip it
- Weight-conscious riders prioritizing speed and portability over maximum security
- Cyclists using wide utility poles or thick street furniture
- Riders who prefer a seamless and rattle-free on-bike storage solution
Performance breakdown
Theft Deterrence
Hardened steel shackle provides a formidable barrier against common cutting tools.
Locking Versatility
Secondary cable adds essential flexibility for securing wheels and quick-release components.
Mechanism Durability
Automatic dust cover keeps the cylinder clean and functional in harsh weather.
Portability
Quick-release bracket makes carrying this heavy-duty lock manageable on daily rides.
Pick Resistance
High-security cylinder design effectively thwarts common lock-picking and drilling attempts.
Frame Protection
Protective coating ensures your bike frame remains scratch-free during daily locking.
Key Specs
Lock Type
U-Lock and Cable
Shackle Diameter
12mm
Cable Length
1200mm
Cable Diameter
10mm
Material
Hardened steel
Mounting Type
Quick-release mounting bracket
Number of Keys
2
Key Type
Laser cut
Locking Mechanism
High-security cylinder
Know before you buy
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Ask Metto anything about the OnGuard OG 5815 before you decide.