Octalink BB: Dura-Ace 7700 or Ultegra 6500

[RS]

I acquired an octalink Ritchey Compact crank I'm going to install on an
older Cannondale. I have both a DA-7700 BB and an Ultegra-6500 BB.
DA s about 65 grams lighter but I just cruise. The DA-7700 isn't sealed
as nicely as the Ultegra. Has anyone found the DA-7700 needs more
maintenance and period cleaning and regreasing? Or any other thoughts
on this. Thanks Rick

 

[Ron Ruff]

No personal experience with DA, but others have noted that it needs a
*lot* of maintenance if you ride in wet conditions. Ultegra's last
~10-30K miles it seems... zero maintenance.

 

[Dave]

On Feb 3, 12:41 pm, RS <[email protected]> wrote:
> I acquired an octalink Ritchey Compact crank I'm going to install on an
> older Cannondale. I have both a DA-7700 BB and an Ultegra-6500 BB.
> DA s about 65 grams lighter but I just cruise. The DA-7700 isn't sealed
> as nicely as the Ultegra. Has anyone found the DA-7700 needs more
> maintenance and period cleaning and regreasing? Or any other thoughts
> on this. Thanks Rick

If weight's not a concern and you don't like tinkering or live in a
rainy area, use the Ultegra. The DA also requires a special tool.

Personally, I love my DA 7700 BBs, and on one bike I went two entire
seasons without an overhaul (maybe 10k miles). When I pulled it out
the bearing grease was clean. This is in So Cal with minimal wet
riding, so YMMV.

 

[Qui si parla Campagnolo]

On Feb 3, 1:41 pm, RS <[email protected]> wrote:
> I acquired an octalink Ritchey Compact crank I'm going to install on an
> older Cannondale. I have both a DA-7700 BB and an Ultegra-6500 BB.
> DA s about 65 grams lighter but I just cruise. The DA-7700 isn't sealed
> as nicely as the Ultegra. Has anyone found the DA-7700 needs more
> maintenance and period cleaning and regreasing? Or any other thoughts
> on this. Thanks Rick

W/o doubt, The DA BB was poorly sealed, draggy, very diffucult to
adjust. Upgrading to the 6500 is best.

 

[Derk]

Ron Ruff wrote:

> No personal experience with DA, but others have noted that it needs a
> *lot* of maintenance if you ride in wet conditions. Ultegra's last
> ~10-30K miles it seems... zero maintenance.
A friend of mine has an old 8 speed bike with a Shimano 600 group and never
changed the BB in 100.000 miles. He's a lightweight guy and makes more
rpm's than I do. I think that influences the longevity of a BB in a big
way.

Gr, Derk

 

[Neil Graham]

Fitted an Italian thread 7700 to my Colnago. Never did get the useless piece
of garbage to stay adjusted. Upgraded to 6500. No problems since......
Neil

"RS" <[email protected]> wrote in message
news:[email protected]...
>I acquired an octalink Ritchey Compact crank I'm going to install on an
> older Cannondale. I have both a DA-7700 BB and an Ultegra-6500 BB.
> DA s about 65 grams lighter but I just cruise. The DA-7700 isn't sealed
> as nicely as the Ultegra. Has anyone found the DA-7700 needs more
> maintenance and period cleaning and regreasing? Or any other thoughts
> on this. Thanks Rick
>