If you have a well-loved bicycle that’s worth a few hundred dollars and mostly secure it in high traffic, low-risk areas, this lock package is a good value. The 12.7-millimeter steel shackle is the primary theft deterrent of this u-bolt and cable combo. Cables are easy to cut through, so treat the 10-millimeter cable as added protection for your bike’s wheels rather than as a first line of defense. The lock has a Sold Secure Gold (2018) rating, which may be a requirement for your insurance company, and ranks 6/10 in Kyrptonite’s own security ratings, offering moderate protection for running a quick errand in a city. You can attach the u-bolt to your bike’s frame with the included bracket for convenience.