I grew up in Missouri but left the area long before the Katy Trail was conceived. My parents currently live in St. Charles, though, and about 4 years ago I managed to do a couple of day trips on the trial near St. Charles. Had to rent a bike. All the rentals at the local shops were heavy bikes with fat tires and without toe clips. But it turned out you needed fat tires for the crushed limestone surface. A skinny-tired road bike would not have been good there. I was on the trail in the summer when it was bloomin' hot and most of the stuff along the trail that would have catered to cyclists was closed.
Oil is good, grease is better.
2007 Peter Mooney w/S&S couplers/Terry Butterfly
1993 Bridgestone MB-3/Avocet O2 Air 40W
1980 Columbus Frame with 1970 Campy parts
1954 Raleigh 3-speed/Brooks B72