BB longevity

jim said:

Hello all,

I need to purchase a new splined BB(Octalink) for my road bike. Anyone
out there have experience as to whether the Ultegra or Dura-Ace BB's
last longer than the much less expensive 105-level BB's? I don't care
about the weight difference.

Ultegra is pretty damned bomb-proof, IME. (I used on one my mtb until my
XTR rings gave out.) Nothing wrong with 105 (or DA for that matter),
either. Get whatever's on special?

jim said:

Hello all,

I need to purchase a new splined BB(Octalink) for my road bike. Anyone
out there have experience as to whether the Ultegra or Dura-Ace BB's
last longer than the much less expensive 105-level BB's? I don't care
about the weight difference.

ultegra has the cassette shell - a lot less trouble. the d-a is
susceptible to bb misalignment much more than the ultegra. otoh, 105
bearings are as good as ultegra and don't last quite as long. on
balance, i think ultegra has it.

Bill Sornson said:

jim said:

Hello all,

I need to purchase a new splined BB(Octalink) for my road bike. Anyone
out there have experience as to whether the Ultegra or Dura-Ace BB's
last longer than the much less expensive 105-level BB's? I don't care
about the weight difference.

Ultegra is pretty damned bomb-proof, IME. (I used on one my mtb until my
XTR rings gave out.) Nothing wrong with 105 (or DA for that matter),
either. Get whatever's on special?

Many posters have noted the difficulties with the DA tubular spindle
BB. Apparently poorly sealed and difficult to adjust. More than one
wrench here has suggested the Ultegra BB is the best choice. Weight
aside, the plastic cup on the 105 BB can be damaged if not approached
with some caution.

If you are having a pro wrench care for your bike, the 105 is not an
issue (don't know your skills with a wrench).

D'ohBoy

jim beam said:

jim said:

Hello all,

I need to purchase a new splined BB(Octalink) for my road bike. Anyone
out there have experience as to whether the Ultegra or Dura-Ace BB's
last longer than the much less expensive 105-level BB's? I don't care
about the weight difference.

ultegra has the cassette shell - a lot less trouble. the d-a is
susceptible to bb misalignment much more than the ultegra. otoh, 105
bearings are

insert: "not"

Quoted message said:

as good as ultegra and don't last quite as long. on
balance, i think ultegra has it.

jim said:

I need to purchase a new splined BB(Octalink) for my road bike. Anyone
out there have experience as to whether the Ultegra or Dura-Ace BB's
last longer than the much less expensive 105-level BB's? I don't care
about the weight difference.

I only use the Ultegra BB, though I have D-A groups on my bikes. The D-A
isn't very waterproof. I know that some pro teams also use the Ultegra in
stead of the D-A.

It might be a good idea to stock a few BB's......

Derk

jim said:

Hello all,

I need to purchase a new splined BB(Octalink) for my road bike. Anyone
out there have experience as to whether the Ultegra or Dura-Ace BB's
last longer than the much less expensive 105-level BB's? I don't care
about the weight difference.

I have about 3 years and 10-15k miles on an Ultegra unit that's still
going strong, despite a lot of wet rides, if that's any help.

With cup and cone units I was servicing them every few months.

Matt O.

Derk said:

jim said:

I need to purchase a new splined BB(Octalink) for my road bike. Anyone
out there have experience as to whether the Ultegra or Dura-Ace BB's
last longer than the much less expensive 105-level BB's? I don't care
about the weight difference.

I only use the Ultegra BB, though I have D-A groups on my bikes. The D-A
isn't very waterproof. I know that some pro teams also use the Ultegra in
stead of the D-A.

It might be a good idea to stock a few BB's......

Derk

You can see the 'Dead End' sign at the end of the Octalink Hwy, too?

Hello jimski,

Quoted message said:

I need to purchase a new splined BB(Octalink) for my road bike.
Anyone out there have experience as to whether the Ultegra or
Dura-Ace BB's last longer than the much less expensive 105-level
BB's? I don't care about the weight difference.

What mode of failure have you experienced and wish to avoid with this
purchase? The do-race version is probably no different except in the
style and weight of the cranks.

Jobst Brandt

Quoted message said:

Hello jimski,

Quoted message said:

I need to purchase a new splined BB(Octalink) for my road bike.
Anyone out there have experience as to whether the Ultegra or
Dura-Ace BB's last longer than the much less expensive 105-level
BB's? I don't care about the weight difference.

What mode of failure have you experienced and wish to avoid with this
purchase? The do-race version is probably no different except in the
style and weight of the cranks.

jeepers, do you wish to look ignorant in /every/ field - can't you just
keep it to materials? the breakdown is like this:

*105*
- lower end steel spindle
- steel cartridge housing
- lower end bearings

*ultegra*
- high end pipe spindle
- steel cartridge housing
- high end bearings

*dura-ace*
- high end spindle that in addition to being hollow, is further
internally machined for additional weight reduction.
- separate bearing cups with roller and ball bearings in plastic
retainers. cups are sealed with plastic tube, but rely on the bb for
alignment as opposed to the others which remain aligned relative to the
cartridge.

of course, your ignorance on this matter begs another question - wtf
qualifies you to criticize the octalink system when you've evidently
never even handled it??? that's got to be up there with your
statements about elasto-hydrodynamic separation!

jim beam said:

jeepers, do you wish to look ignorant in /every/ field - can't you just
keep it to materials? the breakdown is like this:

Jeepers, do you intend to look like a jackass in /every/ post?

Hank Wirtz said:

jim beam said:

jeepers, do you wish to look ignorant in /every/ field - can't you just
keep it to materials? the breakdown is like this:

Jeepers, do you intend to look like a jackass in /every/ post?

so what are the facts? does jobst not criticize octalink, yet evidence
never having examined this system? if you want to bleat about
jackassery, you have it right there.

"Hank Wirtz" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

jim beam said:

jeepers, do you wish to look ignorant in /every/ field - can't you just
keep it to materials? the breakdown is like this:

Jeepers, do you intend to look like a jackass in /every/ post?

If Jim Beam feels that Jobst is so wrong, why doesn't he write to Mike
Iglesias, the keeper of Rec.Bicycles FAQ, and correct the Rec.Bicycles FAQ?
I don't know who decides what is the truth, but since Mike is the keeper,
maybe he can.

jim beam said:

Hank Wirtz said:

jim beam said:

jeepers, do you wish to look ignorant in /every/ field - can't you just
keep it to materials? the breakdown is like this:

Jeepers, do you intend to look like a jackass in /every/ post?

so what are the facts? does jobst not criticize octalink, yet evidence
never having examined this system? if you want to bleat about
jackassery, you have it right there.

I have no idea whether your description of the different models is
correct or not, nor do I particularly care. I'm not talking about your
technical acumen, I'm talking about your personality.

You're a jerk and a bully. If anyone says anything you disagree with,
you throw as many ten-dollar words as you can think of at them to try
to make yourself look as smart as you obviously think you are. But next
to nothing you have to say is ever particularly helpful.

I think the feature breakdown you just did in this thread is about the
most useful information I've ever seen from you, and for that, thank
you. But to preface it with an insult just taints what you have to say.

It's great that you want to teach everyone about materials science in
terms that are way above my head. But for God's sake, just quit being
such a jerk about it.

Hank Wirtz said:

jim beam said:

Hank Wirtz said:

jim beam wrote:

> jeepers, do you wish to look ignorant in /every/ field - can't you just
> keep it to materials? the breakdown is like this:
Jeepers, do you intend to look like a jackass in /every/ post?

so what are the facts? does jobst not criticize octalink, yet evidence
never having examined this system? if you want to bleat about
jackassery, you have it right there.

I have no idea whether your description of the different models is
correct or not, nor do I particularly care. I'm not talking about your
technical acumen, I'm talking about your personality.

You're a jerk and a bully.

oh the irony. jobst can fabricate against, twist, mock, deride, ad
hominem, in the most personal and vicious terms, anyone/thing that dare
expose the drivel he spouts, yet the peanut gallery either never says a
damned thing or they sycophantically applaud. otoh, /i/ have the
temerity to stand up against the bully and keep the facts straight, yet
i'm the one with the problem? what's wrong with this picture?

"Hank Wirtz" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

jim beam said:

Hank Wirtz said:

jim beam wrote:

> jeepers, do you wish to look ignorant in /every/ field - can't you
> just
> keep it to materials? the breakdown is like this:

Jeepers, do you intend to look like a jackass in /every/ post?

so what are the facts? does jobst not criticize octalink, yet evidence
never having examined this system? if you want to bleat about
jackassery, you have it right there.

I have no idea whether your description of the different models is
correct or not, nor do I particularly care. I'm not talking about your
technical acumen, I'm talking about your personality.

You're a jerk and a bully. If anyone says anything you disagree with,
you throw as many ten-dollar words as you can think of at them to try
to make yourself look as smart as you obviously think you are. But next
to nothing you have to say is ever particularly helpful.

I think the feature breakdown you just did in this thread is about the
most useful information I've ever seen from you, and for that, thank
you. But to preface it with an insult just taints what you have to say.

It's great that you want to teach everyone about materials science in
terms that are way above my head. But for God's sake, just quit being
such a jerk about it.

Nahh...leave 'em alone. They're entertaining.

Cal

jim beam said:

Quoted message said:

Hello jimski,

Quoted message said:

I need to purchase a new splined BB(Octalink) for my road bike.
Anyone out there have experience as to whether the Ultegra or
Dura-Ace BB's last longer than the much less expensive 105-level
BB's? I don't care about the weight difference.

What mode of failure have you experienced and wish to avoid with this
purchase? The do-race version is probably no different except in the
style and weight of the cranks.

jeepers, do you wish to look ignorant in /every/ field - can't you just
keep it to materials? the breakdown is like this:

*105*
- lower end steel spindle
- steel cartridge housing
- lower end bearings

*ultegra*
- high end pipe spindle
- steel cartridge housing
- high end bearings

*dura-ace*
- high end spindle that in addition to being hollow, is further
internally machined for additional weight reduction.
- separate bearing cups with roller and ball bearings in plastic
retainers. cups are sealed with plastic tube, but rely on the bb for
alignment as opposed to the others which remain aligned relative to the
cartridge.

of course, your ignorance on this matter begs another question - wtf
qualifies you to criticize the octalink system when you've evidently
never even handled it??? that's got to be up there with your
statements about elasto-hydrodynamic separation!

I have a 105 octalink bottom bracket. But until reading your post, I
had no knowledge about its guts or how it might differ from the ultegra
and dura ace bottom brackets.

Are you saying that because I've only handled the 105 bottom bracket,
I can't draw any conclusions about the octalink interface? Does the
interface differ from one model to the other?

This is unusually stupid even for you.

bfd said:

"Hank Wirtz" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

jim beam said:

jeepers, do you wish to look ignorant in /every/ field - can't you just
keep it to materials? the breakdown is like this:

Jeepers, do you intend to look like a jackass in /every/ post?

If Jim Beam feels that Jobst is so wrong, why doesn't he write to Mike
Iglesias, the keeper of Rec.Bicycles FAQ, and correct the Rec.Bicycles FAQ?
I don't know who decides what is the truth, but since Mike is the keeper,
maybe he can.

We (the peanut gallery) decide what is the truth.

Ozark Bicycle said:

You can see the 'Dead End' sign at the end of the Octalink Hwy, too?

Well, I know how it went with the pre-OCtalink standard: first you couldn't
get D-A BB any more, then Ultegra etc. I don't want to be forced by Shimano
to change to 10S, since it brings me nothing I need. I'm happy with 9S.
I bought a lot of cones for my 9S D-A wheels, I bought a few bodies for the
9s D-A hubs and I stock 15 Octalink BB: 10 Ital and 5 BSA.....

Gr, Derk

Derk said:

Ozark Bicycle said:

You can see the 'Dead End' sign at the end of the Octalink Hwy, too?

Well, I know how it went with the pre-OCtalink standard: first you couldn't
get D-A BB any more, then Ultegra etc.

Other than the DA BB, which was particularly narrow, I think you can
still get perfectly fine BBs for other square taper Shimano cranks.
Maybe not labeled "Ultegra" but ones that will work fine.
--
JT
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