I'm looking for some tips on what caused today's crash. I was coming off one of the hairpins on the Pitfichie descent. This is a pretty sharp (bermed) left turn, which then drops fairly sharply and tunrs a bit further left at the bottom. I lost it on that second turn-in at the bottom and went down pretty hard on my left hip. Ended up with a nice deep gash (must have landed on a sharp rock), plus the usual trail rash etc. After a bit of debate at A&E they eventually decided to push the bit of fat that was hanging out back in and see if a few strips and a gel dressing would hold it together. So, no big deal really, but I'm still confused about what caused the crash.
The trails are very dry and the bit where I crashed is loose rock and sand. So, originally, I just assumed that the front wheel had washed out and was ready to just blame the dusty trails and lightweight Racing Ralph tyres. However, when I picked the bike up I noticed that rather than just laying on its side on the edge of the trail the bars had turned right round, as if the wheel had turned too far, which would fit with me being thrown forwards rather than just landing beside it.
So, what would cause the front wheel to turn too far on a dusty corner and is there anything I should do (either bike setup or technique) to try and avoid this? The bike is a Kinesis FF29; a 29er hardtail with a fairly steep head angle (70-71 degrees) and it has a 75mm stem with 700mm bars set about level with the saddle.