Mileage will depend on maintenance, your weight and the type of riding you do. If you are riding relatively flat roads, you won't notice much difference. But if you are regularly attacking 10% plus grades those big Ti cogs will sacrifice themselves pretty quick. I'm not racing, and I have regular rides of 12%, so I stick with 6600 on everything except shifters.psi_co said:Yes, I mean the cassettes, I think one should know the components descriptions if one is riding and checking them for maintenace.
Sounds good for the Ultegra, but almost 60g is not a few, it´s pretty d *amn a lot!
I´m riding the 7800 and it´s now 14000Km on it still shifts perfectly.So until now it was worth it, but still too expensive -the Ultegra cassette is about half the price!
Obviously, YMMV.R.Rice said:I just had to throw away a 7800 cassette after 4k miles.
I agree that the rest of the 7800 drivetrain is better.I have Ultegra 10 on my Bianchi San Lorenzo and Dura Ace on My Bianchi Freccia Celeste.The 7800 definately shifts a lot smoother,looks better and the brake hoods are more comfy.BugMan said:Obviously, YMMV.
Although, really, I agree the cassette (and chain) are the 1st two things I'd "sacrafice" to Ultegra on an otherwise D/A system. Ultegra derailleurs might actually be lighter, but the D/A finish is much purtier. D/A shifters are a must, as well as the crankset - if not for its lighter weight than certainly for it's sheer beauty (plz - no slams by Campy intruders).