On my cycle to work this morning I noticed my back wheel was skidding out as I was going up a fairly steep hill. It did it enough that I thought I'd probably gotten a flat, however upon inspection it seemed fine.
I'm a bit of newbie (perhaps done 25 rides on my new-ish road bike) - am I right in thinking my back tire maybe just needs a bit more air in it? It seemed pretty pressurised although some of the bumps I went over today seemed a bit more more shocking than normal.
Are there some other things I should look for? I wasn't turning very hard at all when it lost traction.
Update - details here: http://www.sportstracklive.com/track/detail/johnhunt/Cycling/159913
Update2: Yes, I do wear cycling shoes that clip into the pedals, and it did happen at a particularly steep point on the hill. I guess I ought to try and stay seated a bit more - just after the previous two hills it's a lot easier to attack up the last one.