We've tested and reviewed products since 1936. Read CR's review of the Kryptonite Evolution U-Lock with FlexFrame U-Bracket bike lock to find out if it's worth it.

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Duncan Niederlitz and Eve O'Neill Bike thieves are a persistent plague. The ...

I put up with the hassle of owning a car in traffic-jammed Washington, D.C., for a few years. But when I lost my free parking space, I sold the car and made a bike my primary means of transportation.

With its large shackle and patented Diamond coating, the Kryptonite New York Lock Diamond Standard is a heavy duty D-lock that inspires confidence when leaving expensive electric and cargo bikes ...

Kryptonite’s Modulus bike lock caught our eye at this week's iceBike show. It's being marketed as a flexible security system for riders who lock their bikes to various different sized objects, from ...

Perfect for locking two or more bicycles, motorcycles or scooters together when combined with another Kryptonite lock 10mm BRAIDED STEEL CABLE provides increased cut resistance DOUBLE LOOPED CABLE for ...