When you buy a bicycle lock you need to make a decision: 1) Easier and simpler to use; OR 2) Extreme security (although a determined individual can get through anything) This specific sized product, I find is right in the middle. My recommendation would be to get this product but get the next size down (12mm?) which would make it far easier to unwrap and place around a pole, etc. If you valued extreme security I would go to a larger size than this. As for OnGuard's mechanism it works fine for me. So yes I would recommend OnGuard Doberman Coil, but I would recommend the size below 15mm (for ease-of-use) or the size above (for extreme security). Cheers
Verified purchase: Yes | Condition: New
Works well
Verified purchase: Yes | Condition: New
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