I put a Red Clover tripilizer on Fredo:
Stealth drivetrain mods
That's a 28T Sekai chainring on it. I had just enough clearance for it, so I did not have to move my Phil Wood bottom bracket off of center. My original Suntour Cyclone front derailleur works just fine, and the drop into the small ring is easy and reliable. To handle the larger range, I replaced my original Suntour Cyclone rear derailleur with a Suntour V-GT Luxe. The whole combo works well. I'm trying a 49T instead of the 46T at present. There is a 47" gear on each chainring, so it's really only a 19-speed. Otherwise they are nicely spread out:
Bicycle Gear Calculator
I read a rumor that Red Clover was considering closing down; glad they haven't,
afaik.