In the past few weeks and most of the year from 2018 to 2019, I've been riding 36 km on my 1979 10-speed racer. Aluminum frame, so it's a heavier bike than modern carbon-fiber bikes. Not only that, I'm carrying gear and locks. I've been passed many times by other cyclists but I still manage to do an average of 15 km/hr over a 2.5 hr ride.
Last edited by Daniel4; 08-19-21 at 06:04 PM.