Originally Posted by
reqm
That sounds like a very slight difference in weight jmX.
A half pound isn't "slight" by most riders standards where a few grams difference between bottle cages or bars makes a difference in buying decisions. But his experience of a half pound between the Roubaix and Venge is pretty common among manufacturers. The difference between a Cervelo R5 and S3/S5 is about the same (200-300 grams depending on size).