Full Name: Status:(Standard User,Amateur,Professional)   Have you already experience losing a bicycle? What kind of lock/security do you use on your bike? Why do we need a lock in bicycle? How do you secure the safety of your bicycle? What will you do if you lost your bicycle? How can you say that your lock is durable? If you have a lock. How long do you/you can use it? Write your answer? Is it okay with you if your lock have GPS, SMS alert and Alarm? If you are using chain lock, do you feel inconvenient for frequent using it or packing up this lock? If we make D-Lock. Are you willing to try it?