Chain locks sit at the top of the security hierarchy for a reason—cutting through hardened steel links requires serious tools and serious time, which is exactly what deters opportunistic theft. The Specialized Globe Kryptonite Evolution 1010 Chain Lock pairs a 10mm four-sided chain with Kryptonite's hardened steel construction, creating a security solution that earns a Sold Secure Gold rating while remaining flexible enough to wrap around awkward parking infrastructure. The 1010mm chain length gives you roughly 39 inches of working length, which translates to locking through both wheels and the frame when you find a decent anchor point.

The four-sided chain link design matters more than the marketing might suggest. Round links can be attacked with bolt cutters that concentrate force on two contact points, while four-sided links spread that force across flat surfaces that resist cutting leverage. The 10mm thickness hits a practical balance between security and portability—thicker chains exist, but they start adding weight that makes daily carry genuinely burdensome. This one comes in around three pounds, which is substantial but manageable for commuters who actually need to bring their lock with them.

Kryptonite's disc-style cylinder resists picking and drilling attempts better than standard pin tumbler designs. The key system includes three keys with one featuring an integrated LED light for fumbling with the lock after dark, which sounds like a minor detail until you're standing in a poorly lit bike rack trying to get home. The vinyl coating over the chain links protects your frame finish from the inevitable contact that happens when you're threading a chain through tight spaces.... Read More