A fantastic, lightweight ride for the summer. Believe it is a 979, an early aluminum racing frame. Shifters are Shimano 600s. I added Specialized Armadillo all condition tires for durability and versatility (and have not had any flats since doing so). It also has a top bracket above the rear brake in case you want to add a rear rack. Bike is in good condition and has been kept inside. Selling because I needed something more practical for pulling children. Frame looks like it is a 56cm but is not marked.