OCRider2000

In my book "too small" means a frame that requires tons of spacers and a super high riser stem in order to stay within your saddle to bar height differential and or super long stem due to too short of a top tube. Your stem doesn't look super long. So as long as you don't feel like you have excessive bar drop (to you) then you look fine frame size wise. You goal setup wise should be maximum efficiency while still be comfortable. In order to figure this out you need to do some longer rides after each change you make. I'm not big on KOPS either. You need to experiment with seat fore\aft to determine where you are most efficient. Take an alan wrench with you on your rides and play around with seat hight fore\aft on your rides. Of course you may end up trying different stem lengths too as a result.

BadBreaks

I did some measuring, the frame size doesn't seem to be on the frame so I hope I'm being accurate:

The frame is 50 CM/ 19 CM

I'm 5 7, 170 cm

My inseam is about 31/32. 80 cm

Thanks guys!

KidTruth

To quote botto:

incorrect.

There is a real reason for knee over pedal, particularly if your style of pedaling is that which focuses on the downstroke rather than making full circles (Mashers vs. Spinners)