It's happened twice so far. First time I just thought it was a fluke, but it happened again. While in gear, I used the back brake and It seemed as if the brake lever wouldn't travel fully. As if it was locked and unresponsive until I pushed harder and then the bike jumped out of gear. Being that it happened twice I thought I better ask if anyone has any ideas as to why, or what to look at. What does the rear brake have to do with the bike jumping out of gear. I'm not for sure but I would guess that I was braking at about 25-30mph 2nd gear around 2500 RPM's or so. hmmmm? One more bit of info I forgot to mention. I do have ABS brakes. I always use front brake first and then rear brake with emphases on front brake. It happened both times on rear brake that it seemed to not respond until I stomp on it and then the bike jumped out of gear. It rides like normal after you put it back in gear.