Kryptonite KryptoLok U-Lock - 4x9"

The Kryptonite KryptoLok U-Lock - 4x9" is a nice size lock for most bikes in the city. It comes with a bracket so it can be mounted on the frame for easy carrying. 

Here is more info:

The KryptoLok features a high security pick and drill resistant disc-style cylinder.

• Patented bent-foot design makes lock-up easy
• Patented cam resists attacks by pry bars and hammers
• Includes EZ mount carrying bracket
• Patented bent-foot design makes lock-up easy, patented cam resists attacks by pry bars and hammers
• High security pick and drill resistant disc-style cylinder