Hippy is right Conti tyres suck arse!

I've been using a Schwalbe Marathon Plus on the rear of the Condor (28) and the Kinesis (25).
They are heavy and I don't really like the handling but they are bloody tough. MA3K suggested these for skidders ages ago. I've got a new one under my desk at the moment. I've not used them for a front tyre, I think they might be too squirmy (technical term).

They must handle better than the plasticky Armadillos though don't they? (I think I know what you're going to say - 'try them out yourself')...