Debutants
Arkaitz Durán is the youngest debutant in Japan Cup Cycle Road Race in 2005. There are 21 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | DURÁN Arkaitz | Saunier Duval - Prodir | 19y + 158d |
| 2 | WU Kin San | Purapharm | 20y + 172d |
| 3 | LAM Kai Tsun | Purapharm | 20y + 333d |
| 4 | KOWATARI Kengo | Kinan CCD | 20y + 361d |
| 5 | KIMURA Yoshihisa | Sumita Ravanello Pearl Izumi | 21y + 41d |
| 6 | POSSONI Morris | Lampre-Caffita | 21y + 114d |
| 7 | SANTAROMITA Ivan | Quickstep - Innergetic | 21y + 176d |
| 8 | DOI Yukihiro | Shimano - Memory Corp | 22y + 35d |
| 9 | SHIMIZU Miyataka | Team Bridgestone - Anchor | 23y + 334d |
| 10 | CHAN Chun Hing | Purapharm | 24y + 182d |
| 11 | MORI Manuele | Saunier Duval - Prodir | 25y + 75d |
| 12 | GARCÍA Julio | Madeinox - A.R. Canelas | 27y + 20d |
| 13 | LOBATO Rubén | Saunier Duval - Prodir | 27y + 52d |
| 14 | WONG Ngai Ching | Purapharm | 27y + 113d |
| 15 | MANCEBO Francisco | Illes Balears - Caisse d'Epargne | 29y + 228d |
| 16 | LASTRAS Pablo | Illes Balears - Caisse d'Epargne | 29y + 276d |
| 17 | PRADERA Mikel | Illes Balears - Caisse d'Epargne | 30y + 231d |
| 18 | HORRACH Joan Sebastian | Illes Balears - Caisse d'Epargne | 31y + 210d |
| 19 | NISHIMURA Takuya | Miyata - Subaru | 32y + 4d |
| 20 | WONG Kam-Po | Purapharm | 32y + 224d |
| 21 | MORENI Cristian | Quickstep - Innergetic | 32y + 336d |