What's the difference between K, F, and C models?

[centerall49]

Can someone briefly explain the differences in CB750 model codes?

[genesound]

The K is kind of like the original 750. Mostly a UJM.

The F is a sportier version, more aggressive seating position.

The C is a more laid back riding position, more of a cruiser.

Most of the frame and body parts are different. The motors are pretty much the same.