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.

Kryptonite New York M18 U-Lock review in a sentence: A dazzling design that’s also super secure, which makes this premium priced D-lock a very sensible purchase. Having a bike lock that stands out ...

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.

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 ...

BOSTON — Bike lock maker Kryptonite struggled to reassure customers and protect its reputation on Friday after the disclosure that its famous U-lock could be opened by a ballpoint pen. Kryptonite said ...

After reading an article in The New York Times about a design flaw in a popular bicycle U-lock, it didn’t take Weinberg sophomore Caitlin Grogan long to ditch the Kryptonite U-lock protecting her ...