Let me tell you, this isn't just a lock - it's a 20-pound peace of mind. When I first lifted the VULCAN chain out of its packaging, my arms actually dipped from the weight. That's when I knew my e-bike investment was finally safe.

The fabric-covered chain glides smoothly around my bike frame without scratching, while the square links make satisfying metallic clicks as I wrap it through both wheels and around a parking meter. The hardened steel feels like something from a bank vault - I actually tried cutting an extra link with bolt cutters (for science!) and only succeeded in denting my tools.

That massive brass padlock? It snaps shut with an authoritative clunk that echoes through parking garages. While no lock is truly pick-proof, the unusual keyway design means most thieves would need specialized tools and about 15 minutes of uninterrupted work - not likely in public spaces.

Yes, it's heavy enough that I had to install saddlebags just to transport it. But when I return to find my $3,000 e-bike untouched while cheaper locks nearby show cut marks? That weight becomes my favorite feature. For motorcycle owners or anyone securing high-value equipment, this American-made beast is worth every ounce and every penny.