It seems the 2020 Radcity dropped to a 42 tooth chain ring where the 2019 has a 46 tooth.
electricbikereview.com
Increase top speed on RadCity via Chainring/Freewheel upgrade
I am planning to increase the top end range of gears on my RadCity. I am laying out my plan below to see if anyone has advice about doing this upgrade. I ride almost exclusively in the highest of the 7 gears (46T x 14T, 87 gear inches) except at stop lights, where I generally start in the 2nd...
