My upper front four are mixed in with the rocks on a bridleway in Grizedale forest.Went for a wander over the bars due to going too slow because I had forgotten my helmet. Seem to remember some snapping noises and quite a bit of pain. I had hit a bedded in rock and stalled followed by the run down the top tube and out of the front door.Cant say I would want to do it again.It hurt a bit.
Peter
Peter