Originally Posted by
The Golden Boy
It totally makes sense.
It's the catalog number.
Dura Ace AX is Dura Ace 7300. It's different than Dura Ace 7200 and 7400.
When you say DA AX you know what that means.
Dura Ace AX brakes are BR7300.
BR for brakes, 7300 for that particular Dura Ace group.
I feel a little bit better now. But still what is 7300 etc, they can't refer to the year.