Disaster! Started my race well, but at the bottom of a steep and furiously fast descent I was maxing out in 53/12 at well over 60 kms/hr... at the front of the bunch, as I was expecting to drift back on the climb which followed after a shapr lefthand turn... I slam the chain onto the 39 in prepartion and the bloody thing comes off!!! I then can't get it back in the big ring trying to chase the bunch, whihc was by then too far away to ever catch them again at that pace, on my own into a headwind GRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRR!

I could blame the bike, but it is me that f*cked up the gearing... and the maintenance from the looks of it!

GRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR feel such an incompetent stupid numpty...