Isis splined BB

mlee-<< Does anyone know a good
brand ISIS BB that weighs in around 200-250 gram range? >><BR><BR>

FSA but realize that the big spindle means little bearings..

Peter Chisholm
Vecchio's Bicicletteria
1833 Pearl St.
Boulder, CO, 80302
(303)440-3535
http://www.vecchios.com
"Ruote convenzionali costruite eccezionalmente bene"

Quoted message said:

From: [email hidden]

Quoted message said:

FSA but realize that the big spindle means little bearings..

--------------
Smaller bearings = faster wearing?

Pete, did race face redesign their signature xs to deal with their bearing
problems I read about on the net?

Mike

On 10 Oct 2004 12:38:25 GMT, [email hidden] (Qui si parla

Campagnolo ) said:

mlee-<< Does anyone know a good
brand ISIS BB that weighs in around 200-250 gram range? >><BR><BR>

FSA but realize that the big spindle means little bearings..

Spindle dimensions aren't a reliable indicator of bearing ball size.
For instance, Campagnolo Chorus spindles have traditional diameters,
but the balls in right-side Chorus and Record bottom brackets are no
bigger than 3/16". By comparison, the balls in a splined Ultegra
bottom bracket are, at 7/32", more than twice as big.

-------------------------------
John Dacey
Business Cycles, Miami, Florida
http://www.businesscycles.com
Since 1983
Our catalog of track equipment: online since 1996
-------------------------------

John Dacey said:

On 10 Oct 2004 12:38:25 GMT, [email hidden] (Qui si parla

Campagnolo ) said:

mlee-<< Does anyone know a good
brand ISIS BB that weighs in around 200-250 gram range? >><BR><BR>

FSA but realize that the big spindle means little bearings..

Spindle dimensions aren't a reliable indicator of bearing ball size.
For instance, Campagnolo Chorus spindles have traditional diameters,
but the balls in right-side Chorus and Record bottom brackets are no
bigger than 3/16". By comparison, the balls in a splined Ultegra
bottom bracket are, at 7/32", more than twice as big.

-------------------------------
John Dacey
Business Cycles, Miami, Florida
http://www.businesscycles.com
Since 1983
Our catalog of track equipment: online since 1996
-------------------------------

Dear John,

A typo, I expect?

I assume that the small balls are 3/16" or 6/32", while the
large balls are 7/32", only a little bit bigger.

Unless, God forbid, the Ultegra conceals 7/16" bearings?

Carl Fogel

Quoted message said:

John Dacey said:

On 10 Oct 2004 12:38:25 GMT, [email hidden] (Qui si parla

Campagnolo ) said:

mlee-<< Does anyone know a good
brand ISIS BB that weighs in around 200-250 gram range? >><BR><BR>

FSA but realize that the big spindle means little bearings..

Spindle dimensions aren't a reliable indicator of bearing ball size.
For instance, Campagnolo Chorus spindles have traditional diameters,
but the balls in right-side Chorus and Record bottom brackets are no
bigger than 3/16". By comparison, the balls in a splined Ultegra
bottom bracket are, at 7/32", more than twice as big.
-------------------------------

Dear John,

A typo, I expect?

I assume that the small balls are 3/16" or 6/32", while the
large balls are 7/32", only a little bit bigger.

Oops. A few days in Vegas at Interbike have apparently compromised my
sense of space and time. In an attempt to save face, I'll just pretend
that I _meant_ to say that 7/32" balls in the Ultegra bottom brackets
are half again as big (by volume) as 3/16" balls.

-------------------------------
John Dacey
Business Cycles, Miami, Florida
Since 1983
Comprehensive catalogue of track equipment: online since 1996.
http://www.businesscycles.com

John Dacey said:

Quoted message said:

John Dacey said:

On 10 Oct 2004 12:38:25 GMT, [email hidden] (Qui si parla
Campagnolo ) wrote:

>mlee-<< Does anyone know a good
>brand ISIS BB that weighs in around 200-250 gram range? >><BR><BR>
>
>FSA but realize that the big spindle means little bearings..

Spindle dimensions aren't a reliable indicator of bearing ball size.
For instance, Campagnolo Chorus spindles have traditional diameters,
but the balls in right-side Chorus and Record bottom brackets are no
bigger than 3/16". By comparison, the balls in a splined Ultegra
bottom bracket are, at 7/32", more than twice as big.
-------------------------------

Dear John,

A typo, I expect?

I assume that the small balls are 3/16" or 6/32", while the
large balls are 7/32", only a little bit bigger.

Oops. A few days in Vegas at Interbike have apparently compromised my
sense of space and time. In an attempt to save face, I'll just pretend
that I _meant_ to say that 7/32" balls in the Ultegra bottom brackets
are half again as big (by volume) as 3/16" balls.

-------------------------------
John Dacey
Business Cycles, Miami, Florida
Since 1983
Comprehensive catalogue of track equipment: online since 1996.
http://www.businesscycles.com

Dear John,

An excellent save! The pot is yours!

Now place your winnings on the color of your choice as I
roll this white ball bearing around a wheel that neither
stands on nor hangs from its spokes . . .

Carl Fogel

JDacey wrote-<< Spindle dimensions aren't a reliable indicator of bearing ball
size. >><BR><BR>

But in the case of FSA and other ISIS, it is.

Peter Chisholm
Vecchio's Bicicletteria
1833 Pearl St.
Boulder, CO, 80302
(303)440-3535
http://www.vecchios.com
"Ruote convenzionali costruite eccezionalmente bene"

Quoted message said:

indicator of bearing ball size.
For instance, Campagnolo Chorus spindles have traditional diameters,
but the balls in right-side Chorus and Record bottom brackets are no
bigger than 3/16". By comparison, the balls in a splined Ultegra
bottom bracket are, at 7/32", more than twice as big.

Sorry, incorrect math. 3/16=6/32. They're only a 1/32nd bigger.
Phil Brown

Phil Brown said:

Quoted message said:

indicator of bearing ball size.
For instance, Campagnolo Chorus spindles have traditional diameters,
but the balls in right-side Chorus and Record bottom brackets are no
bigger than 3/16". By comparison, the balls in a splined Ultegra
bottom bracket are, at 7/32", more than twice as big.

Sorry, incorrect math. 3/16=6/32. They're only a 1/32nd bigger.
Phil Brown

come on do the math: they are a whopping 59% bigger!
--
---
Marten

m-gineering said:

Phil Brown said:

Quoted message said:

indicator of bearing ball size.
For instance, Campagnolo Chorus spindles have traditional diameters,
but the balls in right-side Chorus and Record bottom brackets are no
bigger than 3/16". By comparison, the balls in a splined Ultegra
bottom bracket are, at 7/32", more than twice as big.

Sorry, incorrect math. 3/16=6/32. They're only a 1/32nd bigger.
Phil Brown

come on do the math: they are a whopping 59% bigger!

Dear John, Phil, and Marten,

Oh, dear, we're quibbling and it's all my fault!

a) The 7/32nds balls are 1/6th taller than the 3/16ths.
b) They present 13/36ths more surface area.
c) They contain 151/192nds more volume.

Damn! If only I had a superscript ball for this typewriter!

Lt. Col. J.B. Killian