The 11 Tridents of production version, together with some 50 Tridents with Duple Metsec bodies, serve as "Airport Coaches" under the name of "Cityflyer". Unlike those Duple Metsec Tridents, these Alexander Tridents were not painted with the "Cityflyer" livery when new. However, 2101 and 2102 were re-painted with liveries of the "Cityflyer" version in 1999. However, these 2 buses, together with the others, were painted with all-over advertisement of a local airline subsequently.
In December 2003, Citybus acquired from New World First Bus (NWFB) 9 Dennis Tridents with modified Alexander ALX500 bodies and EURO III engines. There fleet numbers are 2302-2310 respectively. These 9 buses started their services in January 2004.
 First day service of 2200 (HN 1822). The bus is a prototype of Trident and also the first one with an Alexander ALX500 body in the fleet. (1997/12/18) |
 2200 approaching to the Cross Harbour Tunnel while serving Rt. 170. (2000/12/29) |
 2200 outside Victoria Park. (2003/07/06) |
 2200 participating in the Hong Kong Bus Rally 2002. (2002/12/08) |