My Bolt came off the Front Caliper. The Bolt is the top bolt. I got on line and found out that it is a 10mm x 40mm but what is the length of the bolt? Came home from work last night and heard and felt a noise by the front tire. Then when I got home found out that the bolt was gone. WOW Just need to know so I can pick one up and put it back in before I ride it again.