MainstreamUSA · Founded 1989
OnGuard Bike Accessories
American lock manufacturer delivering high security at competitive prices. Known for double and quad-locking mechanisms, bump-resistant cylinders, and comprehensive warranties. Strong in North American market.
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OnGuard locks
Match lock value to bike value (rule of thumb: spend ~10% of bike value). Inner U-lock dimensions need to clear frame + wheel + secure object. Standard U-lock:
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OnGuard head-to-head comparisons
See how OnGuard stacks up against the other brands riders cross-shop - specs, fit, and which one wins for your kind of riding.
Compare OnGuard to other brands
Not sure if OnGuard is right for you? Our head-to-head accessory comparisons put the top brands side by side - readers cross-shop OnGuard with Abus, AXA, Bell, Hiplok and Kryptonite.