| Year | Engine size | ||||
|---|---|---|---|---|---|
| <125cc | 125-349cc | 350-449cc | 450-749cc | 750cc + | |
| 1998 | 359,600 | 512,200 | 249,200 | 1,061,000 | 3,192,000 |
| 2003 | 290,000 | 376,000 | 99,400 | 1,237,600 | 4,916,000 |
| Percent change | -19.4 | -26.6 | -60.1 | 16.6 | 54.0 |
SOURCE: Motorcycle Industry Council. Data received by personal communications from J. Goodwin, Sept. 30, 2008. Irvine, CA.