Numbers Builder Built Model Air Cond. Lift Notes 1600-1624 Flyer 1983 D901A no no 1614 undelivered 4000-4361 M.A.N. 1985 SL-40102N no no "Americana" 4400-4875 TMC 1991 T8O-208 yes yes RTS-08 4900-4914 TMC 1991 T8O-608 no no RTS-08 narrow 4915-4927 Orion 1990 I yes yes narrow/Pace 5300-5744 Flxible 1991 40102-6T yes yes "Metro" 5745-5764 Flxible 1991 40102-6C yes yes "Metro" 5765-5769 Flxible 1991 40102-6T yes yes "Metro" 5800-5864 N-Flyer 1995 D40LF yes yes low floor 5900-5902 N-Flyer 1997 D40LF yes yes exp. fuel cell 6000-6304 Flxible 1995 40102-6T yes yes "Metro" 6305-6329 Flxible 1995 40102-6C yes yes "Metro" 7000-7019 M.A.N. 1979 SG220-16.5-2A yes no articulated 7100-7224 M.A.N. 1983 SG310-16.5-2A yes no articulated 7300-7413 M.A.N. 1982 SG310-18-2 no yes articulated/Seattle 9800-9974 Flyer 1983 D901A no noAll buses were 40 feet long, except for articulated buses 7100-7224 which were 55 feet long, and articulated buses 7300-7413 at 60 feet long. All buses were 102 inches wide except for those in the 4900's, at 96 inches wide. Narrower buses were needed on the Lake Street bus route due to the elevated structure. The Lake Street bus route was discontinued in 1997, and from 2000 to 2005 buses 4900-4914 were used on CTA's University of Chicago routes. They were replaced in 2005 by buses 4915-4927, acquired second hand from Pace.
Buses 5900-5902 were tested between 1997 and 2000, using fuel cell technology developed by Ballard Power Systems. Buses were retired in 2000.
Buses 7300-7413 were acquired second hand from Seattle Metro in 2000 and 2001.
The TMC 4400 and 4900 series buses were not originally equipped with air conditioning. In 2001, the 4400's received air conditioners. Originally, these were among the few RTS buses equipped with rear windows. But as air conditioners were installed, the rear of the bus took on a more usual appearance for RTS model buses. In 2001 and 2002, the TMC 4400 series buses also underwent a mid life overhaul.