I've broken something but have no idea what. I was riding home the other day and being a little too agressive down shifting for a corner when i had a sudden loss of drive. The engine still runs fine and i can hear the click from each of the gears but have no drive to the wheel. I have removed the clutch cover and checked the gears that connect the engine to the clutch and gearbox, everything is fine there. So as a guess and fear is that it might be a broken shaft some where.