I rolled my 400ex while racing last week, and now I have no front brakes. I finished the race with a little bit of braking power, just had to squeeze the lever in clear to the bars. Then today I bled them to see if that helped, and I lost all braking. There is no resistance when pulling the lever, no braking at all, plenty of brake fluid, and doesn't seem to be any leaks in the lines. If anyone has any idea what is wrong, please let me know. Thanks.