Your website makes quite a claim about the quality of your Dura-Ace products:
"Top of the line performance for serious cyclists... "
Based upon my experience, "top of the line performance" does not include 14T track cogs lasting over 4,500 miles. Maybe I'm not serious enough. Yeah, that's got to be it. Because had I paid full retail for your cog, I would be Seriously heated right now for blowing my investment.
Let's hope this 15T cog from the same line lasts at least 10k miles, considering I'm giving up about 6 gear inches.
"Three key words have emerged as the theme for the latest DURA-ACE system: Speed, Smooth and Strength. '100% Power Transmission' is the goal pursued by the fusion of these three concepts. Lance Armstrong used Dura-Ace to win the Tour de France seven consecutive times."
I'm pretty sure he wasn't riding that same DA groupo all 7 years.
I hope you all choke on your smug sense of self-satisfaction, you jerks.
- R. Kurtz -Bicycle Commuter