Cannondale R900 Road Frame 56 cm  Never Built Up, Looks like 1994, 56 cm Top Tube (c-c), Extremely Light 2 lb 12 ounces, Has some shop wear- small scratches and two minor dings(last 2 photos) 1. Left Rear Stay 2. Top Tube- Left/Upper Side Both will have no effect on performance and are hard to find.

126 mm rear spacing