Question on Nishiki road bike
 

I recently bought a road bike and I'm trying to figure out what year and model it is.

The serial number on the bottom of the frame is KS86090370

As much as I have been able to figure out it is pre-1975

If anyone can help me figure it out or point me in the right direction I would appreciate it!

Thanks!

Try the info in this thread. http://www.bikeforums.net/showthread.php?t=390318

Or, look at the back of the components like your derailleurs, locate the manufacturer's date code, and look here. http://www.vintage-trek.com/component_dates.htm

But, you could just post some decent pics and let us guess at it, too. We like pics. :)