1968 Red CT-90 K0
This is an excellent 1968 CT-90 K0. Notice that the seat and tank still have their older configuration with the logo plate on the side (a style dating back to the Trail 50s and earlier) and that the newer chrome rack is bolted on over the older-style painted rack. This bike now has the newer dual-range subtransmission and a cover over the front sprocket, and the rear dual sprocket is gone. The taillight is larger, the headlight isn't, and the side covers are indeed off-white. 1968 was the last complete year of this configuration. Note to restorers: the seat is correct with the white seaming. Later bikes had no seam at all.