Had to walk the bike over icy slush to a bigger road but once on my way all was fairly snow and ice free. I was finding it very hard going. Was it the easterly wind, the effects of the weekend or the extra pair of longs to keep the cold out? No, it was the back brake against the wheel rim as I changed the chain at the weekend and hadn't set the wheel back in properly...doh. The Izumi track chain I had on the fixed ( Pearson Now You See Me) suddenly wore massively. It's been on for a fair while (12-18 months). It was fine for ages but then, over the space of a couple of weeks, got as baggy as hell. I'm trying a cheap as chips KMC to see what the difference in life time is.