I have a Revive 2008? DX and have been riding it as a secondary bicycle for about 4 years. It has never given me anything but joy when riding it. I agree with some here who state that it's pace /comfort zone is in the 12-15 mph area. I find that it is a great guest bike due to it's ability to re-size to any rider's needs. The steering is quick especially from a stop so new riders are cautioned to ease into it. My first choice for a leisurely ride with leisurely riders.