Thanks, that 54t chainring looks interesting. It pretty much pushes every existing gear one gear higher. I probably will still have to pull the chain tighter on the chainring to see if I can get a slack of 6 links. Although I rarely ride this bike now and the wife hasn't touched it since the gym re-opened, it might become a lower priority. I use the folder mostly to pick up takeout dinner since with my body position on the road bike, much of the food will leak out while in my backpack (it might be the case for the position I ride the folder too, but I can always raise the handlebar on the fly).