Debutants
Georges Talbourdet is the youngest debutant in World Championships in 1974. There are 25 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | TALBOURDET Georges | France | 22y + 263d |
| 2 | CLARK Danny | Australia | 22y + 360d |
| 3 | MOSER Francesco | Italy | 23y + 67d |
| 4 | SCHIPPER Adri Jos | Netherlands | 23y + 76d |
| 5 | KNETEMANN Gerrie | Netherlands | 23y + 172d |
| 6 | SALM Roland | Switzerland | 23y + 185d |
| 7 | SCHUITEN Roy | Netherlands | 23y + 252d |
| 8 | DELCROIX Ludo | Belgium | 23y + 301d |
| 9 | PRIEM Cees | Netherlands | 23y + 302d |
| 10 | KNUDSEN Knut | Norway | 23y + 317d |
| 11 | RUCH Johann | Germany | 24y + 47d |
| 12 | NIÑO Rafael | Colombia | 24y + 257d |
| 13 | VAN KATWIJK Piet | Netherlands | 25y + 179d |
| 14 | MISAC Jean-Claude | France | 25y + 302d |
| 15 | HARITZ Günter | Germany | 25y + 313d |
| 16 | ESCLASSAN Jacques | France | 25y + 356d |
| 17 | MCVILLY Graham | Australia | 26y + 113d |
| 18 | DE WITTE Ronald | Belgium | 27y + 308d |
| 19 | SNEDDON Tom | United States | 28y + 82d |
| 20 | KUND William | United States | 28y + 148d |
| 21 | CAMPANER Francis | France | 28y + 205d |
| 22 | CONTI Tino | Italy | 28y + 333d |
| 23 | SERCU Patrick | Belgium | 30y + 59d |
| 24 | SATO Tadashi | Japan | |
| 25 | SATO Torao | Japan |