On the rare occasions I’ve fallen it’s either to the left beceause I didn’t unclip on that side and got off balance, in which case it’s much better odds to fall to the left, OR, the fall is due to a lot of other reasons. The last fall on a road bike was 4 years ago when I caught a buddies rear wheel at low speed, In these circumstances it’s a total crap shoot as to which way your going.

I fall more frequently on my mt. bike.