Kryptonite KryptoLok U-Lock

The 5x9 inch dimensions refer to the internal clearance of the U-lock. This size is generally considered a standard, versatile fit that works well for securing your frame and a wheel to most standard bike racks without being overly bulky to carry.

The KryptoLok is designed for everyday security in moderate-risk environments. While it offers robust protection, if you frequently lock your bike for extended periods in high-theft urban areas, you might consider pairing it with a secondary cable or upgrading to a higher-security rating lock.

Yes, the KryptoLok typically includes a transit flex frame mount. This allows you to attach the lock directly to your bike frame for easier transport while you ride.

Kryptonite typically includes two stainless steel keys with the KryptoLok. It is highly recommended to register your key number with the manufacturer immediately in case you need to order replacements in the future.

The 5x9 inch shackle is designed for standard bike racks and parking meters. It may be too short to fit around thicker objects like large trees or heavy-duty poles, so it is best to plan on using designated bike infrastructure.