Can anyone advise on the limits of a cyclocross bike for off road use? Would it be feasible to ride Llandegla Forest (Black) or the Marin Trail, for example, if you missed out the jumps and took things easy? I know they're not ideal for this but it would only be a couple of times a year at most. Can you ride them down steps without damaging them? Most of my off-roading is on tracks and paths nowadays and I'm thinking of changing my mtb for something which will double as a winter road-bike.