About 30 minutes ago, I felt on tarmac. Least expected due to derailed chain (I was on my single speed Shogun) under hard crank (left side) up a bridge. I remember vividly, felt on my left and banged my head pretty hard on tarmac. Lucky enough I was on emergency lane and the traffic is slow.
Upon close scrutiny on the helmet, the inner part which made of styrofoam splitted into two. There goes my RM280 helmet. Well, better a cracked on helmet than a cracked on my skull!