Hi I'm looking to get a bike for mainly family rides with our 2 year old who'll be in a seat on the back of the husbands bike. I've been looking at the Cannondale bikes, specially the Quick, Quick CX & Remixte but not sure which would be best. I want something that will be comfortable to ride due to back problems but that we can do a few miles in, possibly a little bit rougher toads, ie woods, nothing too hard. Any suggestions please on which is a good one to go for. Thanks