WizardOfBoz

I was able to break a recent Dura Ace cassette. They'd used one too few rivets in the design. They sent back the updated (more durable, but a few grams more) under warranty. But I'd bought an Ultegra in the mean-time. I actually am more comfortable with my Ultegra - I suspect that it will take more of a beating. If I were racing (and fifty pounds lighter) I might go for the extra bucks and get dura ace. But for my riding Ultegra shifts just as well, seems more durable, and is cheaper. That said, the rest of the bike (Trek Domane 6.1) is Dura Ace. Great stuff. But for the freewheel...

I will also say that a brand new Ultegra R8000 groupset on my Lemond Zurich is a pretty slick setup. Would I have plunked down the extra for Dura Ace if I'd found a Maillot Jaune? Probably not, but again, the Ultegra is great.