Campy Ultra-Torque BBs: high drag?

[Gene Tolli]

I installed a Campy Chorus roughly a month ago, an have put ~200 miles
on it. I like the design and love the look, but I'm concerned by the
amount of drag it has.

When I remove the chain and spin crank a hard spin, it rotates about
3/4-1 revolution before stopping. The drag must be quite high, since it
really does just stop.

My previous crank (Record crank/square taper BB) didn't have this
problem. I've read that external BB cranks generally have higher drag,
but I didn't expect it to this degree.

Is this unusual? Are there steps I can take to remedy (or at least
minimize) the high drag?

TIA, and Happy Holidays.

 

[Jef Vanspringel]

http://www.campagnolo.com/pdf/7225306_ULTRA_TORQUE_Crankset_UK.pdf


"Gene Tolli" <[email protected]> schreef in bericht
news:[email protected]...
>I installed a Campy Chorus roughly a month ago, an have put ~200 miles on
>it. I like the design and love the look, but I'm concerned by the amount of
>drag it has.
>
> When I remove the chain and spin crank a hard spin, it rotates about 3/4-1
> revolution before stopping. The drag must be quite high, since it really
> does just stop.
>
> My previous crank (Record crank/square taper BB) didn't have this problem.
> I've read that external BB cranks generally have higher drag, but I didn't
> expect it to this degree.
>
> Is this unusual? Are there steps I can take to remedy (or at least
> minimize) the high drag?
>
> TIA, and Happy Holidays.

 

[Artoi]

In article <[email protected]>,
Gene Tolli <[email protected]> wrote:

> I installed a Campy Chorus roughly a month ago, an have put ~200 miles
> on it. I like the design and love the look, but I'm concerned by the
> amount of drag it has.
>
> When I remove the chain and spin crank a hard spin, it rotates about
> 3/4-1 revolution before stopping. The drag must be quite high, since it
> really does just stop.
>
> My previous crank (Record crank/square taper BB) didn't have this
> problem. I've read that external BB cranks generally have higher drag,
> but I didn't expect it to this degree.
>
> Is this unusual? Are there steps I can take to remedy (or at least
> minimize) the high drag?

Doesn't sound right. Sure that all the installation specs are met?
--

 

[Tim McTeague]

"Gene Tolli" <[email protected]> wrote in message
> When I remove the chain and spin crank a hard spin, it rotates about 3/4-1
> revolution before stopping. The drag must be quite high, since it really
> does just stop.

Something is wrong. My Chorus UT crank spins nearly as smoothly as the old
types and much better than the FSA w/ISIS BB that it replaced.

Tim McTeague

 

[Qui si parla Campagnolo]

Gene Tolli wrote:
> I installed a Campy Chorus roughly a month ago, an have put ~200 miles
> on it. I like the design and love the look, but I'm concerned by the
> amount of drag it has.
>
> When I remove the chain and spin crank a hard spin, it rotates about
> 3/4-1 revolution before stopping. The drag must be quite high, since it
> really does just stop.
>
> My previous crank (Record crank/square taper BB) didn't have this
> problem. I've read that external BB cranks generally have higher drag,
> but I didn't expect it to this degree.
>
> Is this unusual? Are there steps I can take to remedy (or at least
> minimize) the high drag?
>
> TIA, and Happy Holidays.

I have installed about a half dozen and one thing these don't have is
the draggy-ness of shimano/FSA/Truvativ..something is amiss in this
admittedly simple design. I would carefully check the BB shell width,
ensure it is spot on 68 or 70mm..The washer in the left cup works well
to solve problems of too small shells but not to large ones.