How much should I spend on my bike lock? Kryptonite Support October 27, 2016 20:28 Updated Kryptonite suggests that you consider spending 10% of the total cost of your bike on security. Related articles Do I need a u-lock or a cable? Choosing The Right Lock For Your Street Bike What is the difference between a standard chain lock and the new integrated chains? The New U offers increased security and a fresh new design. Kryptonite Lock Maintenance Comments 0 comments Article is closed for comments.