Originally Posted by
Garage19
Me too.
I fell off a dirt bike on sat morn and hit my head. Only probably 20-30 mph impact but it was enough to give me concusion bad enough that it screwed up my weekend.
Big difference when you actually hit your head though, although you arent scrubbing off masses of momentum, the change in direction can involve ludicrous amounts of g too.
If you have a 5mph change, and it happens in half an inch, its huge numbers of g.