Shimano free hub axle identification needed

Michael Press said:

How can I tell if a Shimano free hub will take an eight
speed cassette? I did not pay attention when I bought
it. It has no obvious identification marks. I run a
seven speed cassette. The view of the hub shell out
board of the NDS flange transverse to the axle has a
straight line silhouette.

Measure the freehub body from the flange that the
cassette stops against to the end. A 7 speed freehub
will be about 31mm and an 8/9 speed hub about 35mm.
A 7 speed cassette is about (6*5+2) = 32mm wide
and an 8 speed cassette about (7*4.8+2) = 35.6mm wide.

Ben

Quoted message said:

Michael Press said:

How can I tell if a Shimano free hub will take an eight
speed cassette? I did not pay attention when I bought
it. It has no obvious identification marks. I run a
seven speed cassette. The view of the hub shell out
board of the NDS flange transverse to the axle has a
straight line silhouette.

Measure the freehub body from the flange that the
cassette stops against to the end. A 7 speed freehub
will be about 31mm and an 8/9 speed hub about 35mm.
A 7 speed cassette is about (6*5+2) = 32mm wide
and an 8 speed cassette about (7*4.8+2) = 35.6mm wide.

Ben

better yet, the 7-speed hub has external threads...

"jim beam" <[email hidden]> a écrit:

Quoted message said:

better yet, the 7-speed hub has external threads...

Not all do - Alivio and STX are two examples without.

And some 8-speed bodies have external threads - Ultegra 6402 is an example.

James Thomson

"James Thomson" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

"jim beam" <[email hidden]> a écrit:

Quoted message said:

better yet, the 7-speed hub has external threads...

Not all do - Alivio and STX are two examples without.

And some 8-speed bodies have external threads - Ultegra 6402 is an
example.

James Thomson

beamboy caught in another [censored]...

In article
<[email hidden]>,
"[email hidden]" <[email hidden]>

Quoted message said:

Michael Press said:

How can I tell if a Shimano free hub will take an eight
speed cassette? I did not pay attention when I bought
it. It has no obvious identification marks. I run a
seven speed cassette. The view of the hub shell out
board of the NDS flange transverse to the axle has a
straight line silhouette.

Measure the freehub body from the flange that the
cassette stops against to the end. A 7 speed freehub
will be about 31mm and an 8/9 speed hub about 35mm.
A 7 speed cassette is about (6*5+2) = 32mm wide
and an 8 speed cassette about (7*4.8+2) = 35.6mm wide.

OK. 31 mm. Thanks.

--
Michael Press

Quoted message said:

Quoted message said:

Michael Press said:

How can I tell if a Shimano free hub will take an eight
speed cassette? I did not pay attention when I bought
it. It has no obvious identification marks. I run a
seven speed cassette. The view of the hub shell out
board of the NDS flange transverse to the axle has a
straight line silhouette.

Quoted message said:

Quoted message said:

Measure the freehub body from the flange that the
cassette stops against to the end. A 7 speed freehub
will be about 31mm and an 8/9 speed hub about 35mm.
A 7 speed cassette is about (6*5+2) = 32mm wide
and an 8 speed cassette about (7*4.8+2) = 35.6mm wide.

jim beam said:

better yet, the 7-speed hub has external threads...

Maybe, maybe not. That isn't definitive.
Older external (UG) bodies can be 5, 6, 7, or first-year DA8. Current
seven HG bodies have no outside threads.
--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971

A Muzi said:

Quoted message said:

Quoted message said:

Measure the freehub body from the flange that the
cassette stops against to the end. A 7 speed freehub
will be about 31mm and an 8/9 speed hub about 35mm.
A 7 speed cassette is about (6*5+2) = 32mm wide
and an 8 speed cassette about (7*4.8+2) = 35.6mm wide.

jim beam said:

better yet, the 7-speed hub has external threads...

Maybe, maybe not. That isn't definitive.
Older external (UG) bodies can be 5, 6, 7, or first-year DA8. Current
seven HG bodies have no outside threads.

Yes, but also, there are some bodies that accept
both Hyperglide and Uniglide cassettes, and some
of these are also 8-speed. Or at least, the 600
series FH-6402 mentioned by another poster is
(I have one right here).

The threads went away around the time they started
stepping down the splines to accomodate 11 tooth
cogs.

Ben

On Fri, 19 Oct 2007 22:56:47 GMT, Michael Press <[email hidden]>

Quoted message said:

In article
<[email hidden]>,
"[email hidden]" <[email hidden]>

Quoted message said:

Michael Press said:

How can I tell if a Shimano free hub will take an eight
speed cassette? I did not pay attention when I bought
it. It has no obvious identification marks. I run a
seven speed cassette. The view of the hub shell out
board of the NDS flange transverse to the axle has a
straight line silhouette.

Measure the freehub body from the flange that the
cassette stops against to the end. A 7 speed freehub
will be about 31mm and an 8/9 speed hub about 35mm.
A 7 speed cassette is about (6*5+2) = 32mm wide
and an 8 speed cassette about (7*4.8+2) = 35.6mm wide.

OK. 31 mm. Thanks.

....or for more than you ever wanted to know about freehubs and
cassettes see:

http://sheldonbrown.com/k7.html

--
jeverett3<AT>sbcglobal<DOT>net (John V. Everett)