Colnago是一家意大利自行车厂商的商标名，是以创办人的名字Ernesto Colnago当作他所生产的自行车的商标；Oval CX是自行车之中非常罕见的特殊车款，1980年代，空气动力学成为影响比赛成绩的一项研究题目，那一个年份许多自行车的产品致力研究如何减少或是降低空气阻力；Aero Dynamic 成为当时经常出现在这一个行业的字眼.

Colnago oval cx就是Eenesto Colnago在1983年所发表为减少空气阻力的全新设计的车款，他的特征是使用的钢管是椭圆剖面的特殊管材（意大利专门生产自行车车架钢管的厂商Columbus特别生产这一款钢管，也以CX命名），煞车线以及变速线隐藏在车身的钢管之中，座管是至目前为止直径最细的20mm（当时钢管车架多为27.2mm）；变速把手从下管的两侧改到左右并在一起位于下管中间的上方；全车车架电镀并上薄漆只有Saronni 红，灰以及蓝等三色；这一个车款全球只有生产250台.

Colnago Ernesto & C. S.r.l. or Colnago is a manufacturer of high-end road-racing bicycles founded by Ernesto Colnago near Milano in Cambiago, Italy. Instead of following his family's farming business, Ernesto Colnago chose to work in the cycle trade, apprenticing first with Gloria Bicycles at 13, subsequently taking up road racing. After a bad crash ended his racing career, he began subcontracting for Gloria, opened his own shop in 1952, building his first frames the same year. While building frames, he remained much in demand as a racing mechanic. He was second mechanic on the Nivea team Giro d'Italia under Faliero Masi in 1955, eventually being employed as head mechanic for the Molteni team of Belgian cycling legend Eddy Merckx in 1963.