In general - dependent on the wind here - I ride the same loops - 21, 23 and 25 miles during the week. Average times solo tend to be mid-18's to mid-19's on the Gitane's, Spectrum and Trek 510. I hit a 20.1 avg for a 23 mile ride earlier this year but considered it an anomaly. I find the last couple of years the speed coming down as I fight a hot foot (guess it's also known as Morton's neuroma) issue so I can't hammer or I'm stopping mid-ride and massaging the foot to get rid of the pain/numbness. That has forced me to "smell the flowers" more.