How much should I spend on my bike lock? Kryptonite Support January 19, 2017 20:11 Updated Follow Kryptonite suggests that you consider spending 10% of the total cost of your bike on security. Related articles Why is Kryptonite no longer servicing my RealTime GPS device? What is the difference between a standard chain lock and the new integrated chains? Do I need a u-lock or a cable? Comments 0 comments Article is closed for comments.