When I started back road riding a few years ago, 15-17 mph was about the speed and that was for about 30-40 miles. My first 62 mile ride back was 16.8mph average. It was my first year back even though I still rode MTB.

Few years later, low 20s.

I'd focus on form first and speed second. Get a good spin going. Find your cadence that is good for you. SLOWLY work you way up to a faster speed.

My Winter riding is always slower and the distance gets cut down. When it warms up, I'm always guilty of trying to go too fast too far too quick. This year, I forced myself to gradually work the speed back up while focusing on what my target cadence needs to be.

I don't get Pcad or UMD mileage but my non-bike friends still think I'm nuts.