Titanium cogs longer lasting or not?

Quoted message said:

Thanks to the democratic nature of the internet, I have read that the
three big cogs on, say for example a Dura Ace cassette, are LONGER
lasting, and that they wear out faster. So which is it, truly?
Just the facts, please.

Generally? For mountain bike cassettes, XTR is lighter than XT, but
definitely wears out sooner (all things being equal). I would think the
same is true for, say, DuraAce versus Ultegra.

I'd like to hear the case for Ti cogs being LONGER lasting; I'd have trouble
believing it. (On a road bike they might last /almost/ as long as steel,
especially with good chain maintenance; but LONGER? Nah.)

Bill "my mtb cassettes last forever...because I'm such a roadie weenie
nowadays" S.

Big cogs last longer than smaller cogs BUT big ti cogs do not last
longer than big steel cogs.

I believe that is what the various sources actually told you (or meant
to). I could be wrong (about what the sources meant to tell you).

D'ohBoy

Bill Sornson said:

Quoted message said:

Thanks to the democratic nature of the internet, I have read that the
three big cogs on, say for example a Dura Ace cassette, are LONGER
lasting, and that they wear out faster. So which is it, truly?
Just the facts, please.

Generally? For mountain bike cassettes, XTR is lighter than XT, but
definitely wears out sooner (all things being equal). I would think the
same is true for, say, DuraAce versus Ultegra.

I'd like to hear the case for Ti cogs being LONGER lasting; I'd have trouble
believing it. (On a road bike they might last /almost/ as long as steel,
especially with good chain maintenance; but LONGER? Nah.)

Bill "my mtb cassettes last forever...because I'm such a roadie weenie
nowadays" S.

I don't see how Ti cogs could last longer either -- Ti is softer and
weaker than steel (per volume).

However Ti cogs do seem to last pretty well. I ran SRP Ti cogs on my MTB
for awhile, and they seemed to last nearly as well as the steel ones.

Using Ti for the larger cogs makes some sense, since the wear is being
spread over more teeth, and most riders spend more time in the middle
(14-15-16) cogs anyway. (At least on the road. YMMV.)

All that aside, XTR and DA cassettes are silly-expensive for a consumable
part.

Matt O.

Quoted message said:

Thanks to the democratic nature of the internet, I have read that the
three big cogs on, say for example a Dura Ace cassette, are LONGER
lasting, and that they wear out faster. So which is it, truly?
Just the facts, please.
Thanks,
Brian Plaugher

You are paying for the lighter weight and the zoot factor with the Dura
Ace cassette. There is no question that titanium cogs will wear out
faster than steel cogs, all else being equal.

On 11/2/05 5:23 PM, in article
[email hidden], "Mike Krueger"

Quoted message said:

Quoted message said:

Thanks to the democratic nature of the internet, I have read that the
three big cogs on, say for example a Dura Ace cassette, are LONGER
lasting, and that they wear out faster. So which is it, truly?
Just the facts, please.
Thanks,
Brian Plaugher

You are paying for the lighter weight and the zoot factor with the Dura
Ace cassette. There is no question that titanium cogs will wear out
faster than steel cogs, all else being equal.

Indeed, the Ti cogs are lighter, primarily for those who race, but they do
not last as long. Of course a high category racer probably does not spend a
lot of time on the big cogs so they don't have to care that much!
Chuck

Quoted message said:

Thanks to the democratic nature of the internet, I have read that the
three big cogs on, say for example a Dura Ace cassette, are LONGER
lasting, and that they wear out faster. So which is it, truly?
Just the facts, please.
Thanks,
Brian Plaugher

The facts are titanium wears out faster. Bigger cogs wear slower than
smaller, since less teeth are engaged but titanium is a poor choice for
cogs.