The best lock to protect your bike. – By Scott Elder – Slate Magazine
Key style aside, most bikes are stolen because they’re not locked at all (“I’ll just be in Starbucks for a minute â€¦”), or because the locks are used incorrectly. But plenty of properly locked bikes still get nabbed. To find out which locks work best, I pitted nine locks against each other from Kryptonite, OnGuard, and Master Lock: five U-locks, two woven steel cable locks, and two heavy-duty chain locks.