Cannondale's First Issue Pat. Pending SR900 frame and fork in close to NOS Condition. This is Cannondale's very first and highest end model race frame, tight and really light geometry. Pat Pending on the frame design, Originally developed with Campagnolo Super/Nuovo Record group. Outstanding condition with really, very low miles and very few signs of wear. WHEEL SIZE: 700c little cage brakes, FRAME SIZE: 20.5 in Center os BB to top of leading tube, 53 CM stamped on fork - Aluminum TOP TUBE: @ 21.75 = @ 53CM SERIAL NUMBER: CC 02113 Cannondale Serial Numbers: AA-1983, BB-1984, CC-1985. $200 Jeff 757-513-413 three.