FRAME NUMBERS HONDA CT90 | ||||
| MODEL | FRAME NUMBER | DIGITS | YEAR | NOTES |
| CT90K0 | 100001 - 200000 | 6 | ||
| CT90K1 | 200001 - 300000 | 6 | ||
| CT90K2 | 300001 - 400000 | 6 | ||
| CT90K3 | 400001 - 499999 | 6 | ||
| CT90K4 | 1400001 - 1500002 | 7 | ||
| CT90K5 | 1500003 - 1600002 | 7 | ||
| CT90K6 | 1600003 - 1700003 | 7 | ||
| CT90 | 1700004 - 1800007 | 7 | 1976 | |
| CT90 | 1800008 - 1900009 | 7 | 1977 | |
| CT90 | 1900010 - 5000010 | 7 | 1978 | |
| CT90 | 5000011 - 6000000 | 7 | 1979 | |
