At the track today on my '04 450F cruising merrily across a double jump when I heard a loud POP. Didn't notice anything immediately, but when I pulled into the pits I discovered the subframe bolt just above the shock reservoir had sheared off. The head is completely gone and i can only see a bit of the bolt itself. This happen to anyone else? What (besides taking it in to the dealer and having it drilled out) can I do?