For keeping your bike safe, we recommend the Kryptonite Kryptolok Series 2 Standard Bicycle U-Lock. It comes with a u-lock and a four-foot cable, and it’s “strong enough to foil all foil-able theives,” says our writer, Eric Hansen, who’s working on an upcoming guide. Even thieves say u-locks are the best way to prevent theft, but if, god forbid, someone does foil the lock, Kryptonite will cover the cost of the replacement or insurance. It’s one of the best-reviewed u-locks on Amazon, and it’s easy to lock and release.
Kryptonite New-U KryptoLok Series 2 Standard Bicycle U Lock with 4ft Flex Bike Cable
13mm hardened MAX-PERFORMANCE STEEL SHACKLE resists cutting and leverage attacks.