8-inch rotor theory

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

Quoted message said:

I thought they were unnecessary, but since my FR bike
weighs in the neighborhood of 40 lbs, I have been
wondering if 8 really is needed

compared

Quoted message said:

to 6.

I find that with the extra weight of the bike, 8 is needed
to stop the gigantic monsterous behemoth in its tracks.
Otherwise, it will

continue...

Quoted message said:

into a rock garden or wall or a dropoff nobody wants to
drop off.

The bike I got came with 6s, but it required so much lever
pull with the Hayes hydros. With 8, I can stop with the
kind of power that my V-brakes

do

Quoted message said:

on my XC bike.

So does size really matter? Who here would rather have 8
inches than 6 inches?

There's no 'rather' about it when one is already so blessed.

Shaun aRe feeling sorry for lesser men.

I put an 8 on the front of my FR bike when i got my jnr T's.
it felt like id been riding without breaks with the 6.

I'd say go for them every time. Althought the rotors do
weigh quite a bit more, i had hopes, so not for you xc
weight watchers 😉

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

Quoted message said:

I thought they were unnecessary, but since my FR bike
weighs in the neighborhood of 40 lbs, I have been
wondering if 8 really is needed

compared

Quoted message said:

to 6.

I find that with the extra weight of the bike, 8 is needed
to stop the gigantic monsterous behemoth in its tracks.
Otherwise, it will

continue...

Quoted message said:

into a rock garden or wall or a dropoff nobody wants to
drop off.

The bike I got came with 6s, but it required so much lever
pull with the Hayes hydros. With 8, I can stop with the
kind of power that my V-brakes

do

Quoted message said:

on my XC bike.

So does size really matter? Who here would rather have 8
inches than 6 inches?

--
Phil, Squid-in-Training

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

Quoted message said:

I thought they were unnecessary, but since my FR bike
weighs in the neighborhood of 40 lbs, I have been
wondering if 8 really is needed

compared

Quoted message said:

to 6.

I find that with the extra weight of the bike, 8 is needed
to stop the gigantic monsterous behemoth in its tracks.
Otherwise, it will

continue...

Quoted message said:

into a rock garden or wall or a dropoff nobody wants to
drop off.

The bike I got came with 6s, but it required so much lever
pull with the Hayes hydros. With 8, I can stop with the
kind of power that my V-brakes

do

Quoted message said:

on my XC bike.

So does size really matter? Who here would rather have 8
inches than 6 inches?

--
Phil, Squid-in-Training

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

Quoted message said:

I thought they were unnecessary, but since my FR bike
weighs in the neighborhood of 40 lbs, I have been
wondering if 8 really is needed

compared

Quoted message said:

to 6.

I find that with the extra weight of the bike, 8 is needed
to stop the gigantic monsterous behemoth in its tracks.
Otherwise, it will

continue...

Quoted message said:

into a rock garden or wall or a dropoff nobody wants to
drop off.

The bike I got came with 6s, but it required so much lever
pull with the Hayes hydros. With 8, I can stop with the
kind of power that my V-brakes

do

Quoted message said:

on my XC bike.

So does size really matter? Who here would rather have 8
inches than 6 inches?

I use 8 in the front and 6 in the rear for my DH bike. It
does make a difference in the stopping power and the
modulation.

- CA-G

Can-Am Girls Kick Ass!

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

Quoted message said:

I thought they were unnecessary, but since my FR bike
weighs in the neighborhood of 40 lbs, I have been
wondering if 8 really is needed

compared

Quoted message said:

to 6.

I find that with the extra weight of the bike, 8 is needed
to stop the gigantic monsterous behemoth in its tracks.
Otherwise, it will

continue...

Quoted message said:

into a rock garden or wall or a dropoff nobody wants to
drop off.

The bike I got came with 6s, but it required so much lever
pull with the Hayes hydros. With 8, I can stop with the
kind of power that my V-brakes

do

Quoted message said:

on my XC bike.

So does size really matter? Who here would rather have 8
inches than 6 inches?

--
Phil, Squid-in-Training

You should know this one Phil. If you want single digit
break control. Go with the 8" If you want a softer feel. Go
with the 6" The power difference much different.

TJ

"Carla A-G" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

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

Quoted message said:

I thought they were unnecessary, but since my FR bike
weighs in the

Quoted message said:

I use 8 in the front and 6 in the rear

only in the world of mountain biking can this and other
phrases such as "I forgot my butt butter" be used in regular
conversation! ;-)

Michael

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

Quoted message said:

I thought they were unnecessary, but since my FR bike
weighs in the neighborhood of 40 lbs, I have been
wondering if 8 really is needed

compared

Quoted message said:

to 6.

So with 6" and a 35 lb bike I only need my pinkie finger to
stop, then with 8" they'll stop by telekinesis?

Greg

Carla A-G said:

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

Quoted message said:

I thought they were unnecessary, but since my FR bike
weighs in the neighborhood of 40 lbs, I have been
wondering if 8 really is needed

compared

Quoted message said:

to 6.

I find that with the extra weight of the bike, 8 is needed
to stop the gigantic monsterous behemoth in its tracks.
Otherwise, it will

continue...

Quoted message said:

into a rock garden or wall or a dropoff nobody wants to
drop off.

The bike I got came with 6s, but it required so much lever
pull with the Hayes hydros. With 8, I can stop with the
kind of power that my V-brakes

do

Quoted message said:

on my XC bike.

So does size really matter? Who here would rather have 8
inches than 6 inches?

I use 8 in the front and 6 in the rear

snip It does make a

Quoted message said:

difference in the

snip power and the modulation.

Quoted message said:

- CA-G

Can-Am Girls Kick Ass!

Gee with that kind of editing, I could work for Rush
Limbaugh :-)

(Sorry Carla)

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

Quoted message said:

I thought they were unnecessary, but since my FR bike
weighs in the neighborhood of 40 lbs, I have been
wondering if 8 really is needed compared to 6.

I find that with the extra weight of the bike, 8 is needed
to stop the gigantic monsterous behemoth in its tracks.
Otherwise, it will continue... into a rock garden or wall
or a dropoff nobody wants to drop off.

The bike I got came with 6s, but it required so much lever
pull with the Hayes hydros. With 8, I can stop with the
kind of power that my V-brakes do on my XC bike.

So does size really matter? Who here would rather have 8
inches than 6 inches?

You're a flyweight, Phil. The 6" rotor is plenty for you.
BTW, you never mentioned (in this thread) what fork is on
it. Don't use an 8" rotor with a single crown fork. It'll
literally rip it apart.

JD

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

Quoted message said:

"ZeeExSixAre" <[email hidden]> wrote in message

news:<[email hidden]>...

Quoted message said:

Quoted message said:

I thought they were unnecessary, but since my FR bike
weighs in the neighborhood of 40 lbs, I have been
wondering if 8 really is needed

compared

Quoted message said:

Quoted message said:

to 6.

I find that with the extra weight of the bike, 8 is
needed to stop the gigantic monsterous behemoth in its
tracks. Otherwise, it will

continue...

Quoted message said:

Quoted message said:

into a rock garden or wall or a dropoff nobody wants to
drop off.

The bike I got came with 6s, but it required so much
lever pull with the Hayes hydros. With 8, I can stop
with the kind of power that my

V-brakes do

Quoted message said:

Quoted message said:

on my XC bike.

So does size really matter? Who here would rather have 8
inches than 6 inches?

You're a flyweight, Phil. The 6" rotor is plenty for you.
BTW, you never mentioned (in this thread) what fork is on
it. Don't use an 8" rotor with a single crown fork. It'll
literally rip it apart.

JD

So, the Marzocchi Shiver SC on my AC1 will fail because of
the 8" rotors. I doubt very much that will happen on my
bike. I'm not an extreme rider. But, I'm sure it has
happened to many a FR / DH rider.

G.T. said:

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

Quoted message said:

I thought they were unnecessary, but since my FR bike
weighs in the neighborhood of 40 lbs, I have been
wondering if 8 really is needed

compared

Quoted message said:

to 6.

So with 6" and a 35 lb bike I only need my pinkie finger
to stop, then with 8" they'll stop by telekinesis?

Greg

lol I was still using double digits and three little piggies
at the bar last Sat. And that was w/8's F & R.

--
Slacker

Quoted message said:

Quoted message said:

You're a flyweight, Phil. The 6" rotor is plenty for
you. BTW, you never mentioned (in this thread) what fork
is on it. Don't use an 8" rotor with a single crown
fork. It'll literally rip it apart.

JD

So, the Marzocchi Shiver SC on my AC1 will fail because of
the 8" rotors.

I

Quoted message said:

doubt very much that will happen on my bike. I'm not an
extreme rider.

But,

Quoted message said:

I'm sure it has happened to many a FR / DH rider.

It's a single-crown Dirt Jumper II with QR20's... I don't
worry about it at all. What I do worry about is my Manitou
Skareb with V-brakes... sometimes it just feels so flimsy
it's going to snap.

The bike actually came with a Junior T that was too much
travel for me... the previous owner had used 6" discs, but
the bike was so heavy that braking effectively was a bit of
a challenge. I didn't think 8" rotors were that necessary,
but with these heavy bikes, it really helps a whole lot. If
the bike were 30 lbs, then 6" might work fine, but in this
case, I'm glad I have the 8. At least I can go single digit
most of the time.

--
Phil, Squid-in-Training

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

Quoted message said:

Quoted message said:

Quoted message said:

You're a flyweight, Phil. The 6" rotor is plenty for
you. BTW, you never mentioned (in this thread) what
fork is on it. Don't use an 8" rotor with a single
crown fork. It'll literally rip it apart.

JD

So, the Marzocchi Shiver SC on my AC1 will fail because
of the 8" rotors.

I

Quoted message said:

doubt very much that will happen on my bike. I'm not an
extreme rider.

But,

Quoted message said:

I'm sure it has happened to many a FR / DH rider.

There are several factors involved, but the bottom line
is that an 8" rotor on a single crown fork is asking
for trouble.

Quoted message said:

It's a single-crown Dirt Jumper II with QR20's... I don't
worry about it at all.

Keep an eye on it because it's not good.

JD

[email hidden] (JD) wrote in message news:<[email hidden]>...

Quoted message said:

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

Quoted message said:

Quoted message said:

> You're a flyweight, Phil. The 6" rotor is plenty for
> you. BTW, you never mentioned (in this thread) what
> fork is on it. Don't use an 8" rotor with a single
> crown fork. It'll literally rip it apart.
>
> JD
So, the Marzocchi Shiver SC on my AC1 will fail
because of the 8" rotors.

I

Quoted message said:

Quoted message said:

doubt very much that will happen on my bike. I'm not
an extreme rider.

But,

Quoted message said:

Quoted message said:

I'm sure it has happened to many a FR / DH rider.

There are several factors involved, but the bottom line is
that an 8" rotor on a single crown fork is asking for
trouble.

Just reading along, and BAM!

The larger forces at the crown have little to do with the
diameter of the disk rotor. The biggest force component is
at the disk mounting tabs, since the lever arm is longer.
Much of the force component on that longer lever arm are in
a plane parallel to the fork leg.

This is not to say that there aren't reasons for concern.
Some fork manufacturers will void the warranty of a fork run
with 8" disks. When there is a twist, the arch is going to
take the brunt of it. There can only be as much force as it
takes to prevent the wheel from skidding in any case.

If you can hit rocks off-center with a single-crown, then
you can certainly use 8" rotors.
--
Jonesy ($0.02, here's your change.)

ZeeExSixAre said:

I thought they were unnecessary, but since my FR bike
weighs in the neighborhood of 40 lbs, I have been wondering
if 8 really is needed compared to 6.

40 lbs...unreal

Quoted message said:

I find that with the extra weight of the bike, 8 is needed
to stop the gigantic monsterous behemoth in its tracks.
Otherwise, it will continue... into a rock garden or wall
or a dropoff nobody wants to drop off.

The bike I got came with 6s, but it required so much lever
pull with the Hayes hydros.

high lever pull with dics?!......unreal

Quoted message said:

With 8, I can stop with the kind of power that my V-brakes
do on my XC bike.

So does size really matter?

Uh, Slacker you know the answer to this one?

Quoted message said:

Who here would rather have 8 inches than 6 inches?

Uh, Slacker you know the answer to this one?

Peace, Bill The mind serves properly as a window glass
rather than as a reflector, that is, the mind should give an
immediate view instead of an interpretation of the world.
:-]

Bill Wheeler said:

ZeeExSixAre said:

I thought they were unnecessary, but since my FR bike
weighs in the neighborhood of 40 lbs, I have been
wondering if 8 really is needed compared to 6.

40 lbs...unreal

Lightweight! 48 lbs here.

Quoted message said:

Quoted message said:

I find that with the extra weight of the bike, 8 is needed
to stop the gigantic monsterous behemoth in its tracks.
Otherwise, it will continue... into a rock garden or wall
or a dropoff nobody wants to drop off.

The bike I got came with 6s, but it required so much lever
pull with the Hayes hydros.

high lever pull with dics?!......unreal

Quoted message said:

With 8, I can stop with the kind of power that my V-brakes
do on my XC bike.

So does size really matter?

Uh, Slacker you know the answer to this one?

Quoted message said:

Who here would rather have 8 inches than 6 inches?

Uh, Slacker you know the answer to this one?

Hell yes, go big or go home! It's all about size baby!
--
Slacker

On Sat, 20 Mar 2004 14:46:54 -0800, Slacker <[email hidden]>

Quoted message said:

Quoted message said:

40 lbs...unreal

Lightweight! 48 lbs here.

How do you ride that thing up hills!

Quoted message said:

Quoted message said:

Quoted message said:

Who here would rather have 8 inches than 6 inches?

Uh, Slacker you know the answer to this one?

Hell yes, go big or go home! It's all about size baby!

D'oh!

Peace, Bill

The mind serves properly as a window glass rather than as a
reflector, that is, the mind should give an immediate view
instead of an interpretation of the world.
:-]

Quoted message said:

Maybe you try 3 or 4 pistons instead of 8
inches.

I MTB 2004

Come-on now... we're looking for size not qty.
--
Slacker

"Shaun Rimmer" <[email hidden]> wrote in message news:<[email hidden]>...

Quoted message said:

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

Quoted message said:

I thought they were unnecessary, but since my FR bike
weighs in the neighborhood of 40 lbs, I have been
wondering if 8 really is needed

compared

Quoted message said:

to 6.

I find that with the extra weight of the bike, 8 is
needed to stop the gigantic monsterous behemoth in its
tracks. Otherwise, it will

continue...

Quoted message said:

into a rock garden or wall or a dropoff nobody wants to
drop off.

The bike I got came with 6s, but it required so much
lever pull with the Hayes hydros. With 8, I can stop
with the kind of power that my V-brakes

do

Quoted message said:

on my XC bike.

So does size really matter? Who here would rather have 8
inches than 6 inches?

There's no 'rather' about it when one is already so
blessed.

Shaun aRe feeling sorry for lesser men.

Jeez. I have hydro v-brakes. Does that make me a lesbian?

/s