Incoming
| Rider | Team 1989 |
|---|---|
 |
Outgoing
| Rider | Team 1990 |
|---|---|
| Ertjies Bezuidenhout | Retired |
 Graham Cockerton | Retired |
| Tony Impey | Retired |
| Theunis Mulder | Retired |
| Anton Oberholzer | Retired |
| Rider | Team 1989 |
|---|---|
|
| Rider | Team 1990 |
|---|---|
| Ertjies Bezuidenhout | Retired |
| Graham Cockerton | Retired |
| Tony Impey | Retired |
| Theunis Mulder | Retired |
| Anton Oberholzer | Retired |