| Rank | Board name and description | Posts | Members |
| 1 | Motor Forum Dutch motors discussion forums | 6160039 | 50545 |
| 2 | 502 Streetscene Automotive Discussion Forum | 3293629 | 11415 |
| 3 | Ten Tenths Motorsports message board | 2988273 | 35477 |
| 4 | Speed TV Motorsports message boards | 2527547 | 109643 |
| 5 | XL Forum Sportster and Buell motorcycle forum | 2032872 | 41286 |
| 6 | Sport 365 Romanian sports forum | 1602907 | 13177 |
| 7 | Autoracing.com.br Brazilian motorsports forum (in portuguese) | 1553457 | 7486 |
| 8 | Sportbikes.ws Sportbikes discussion board | 1513464 | 37636 |
| 9 | Pit Board F1 and other motorsports discussion board | 1458812 | 162 |
| 10 | eSportbike Sportbikes message board | 1081560 | 54964 |
| 11 | The Chequered Blag Formula 1 message boards | 302564 | 19 |