Ksyrium Front Hub Adjustment Issue--Peter This May Be For You

Ksyrium Front Hub Adjustment Issue--Peter This May Be For You

Post by goldmine84 » Wed, 10 Sep 2008 22:22:01


I recently replaced the bearings in my Ksyruim SL front hub. I greased
the bearings well and the axle too. The adjusment plate kept loosening
but some plumbers tape seems to have largely taken care of that issue,
although it did loosen up a bit recently. My problem is that I can't
seem to find the adjustment "sweet spot" where the play in the hub is
gone and the wheel turns smoothly. There is not a noticable roughness
when the wheel is turned but it really comes to an abrupt halt when
being spun. The adjustment plate is one the right side opposite the
quick release. I saw an older post from Peter (2004) suggesting that
the adjustment works better if the adjustment plate is on the left
side. Does anyone think this could make a difference? I can reverse
the axle but then the adjustment plate would be on the same side as
the quick release. Any other suggestions on proper adjustment? Is part
of the answer that I simply need to work-in the new bearings?
 
 
 

Ksyrium Front Hub Adjustment Issue--Peter This May Be For You

Post by jim bea » Wed, 10 Sep 2008 23:14:11

Quote:

> I recently replaced the bearings in my Ksyruim SL front hub. I greased
> the bearings well and the axle too. The adjusment plate kept loosening
> but some plumbers tape seems to have largely taken care of that issue,
> although it did loosen up a bit recently. My problem is that I can't
> seem to find the adjustment "sweet spot" where the play in the hub is
> gone and the wheel turns smoothly. There is not a noticable roughness
> when the wheel is turned but it really comes to an abrupt halt when
> being spun. The adjustment plate is one the right side opposite the
> quick release. I saw an older post from Peter (2004) suggesting that
> the adjustment works better if the adjustment plate is on the left
> side. Does anyone think this could make a difference? I can reverse
> the axle but then the adjustment plate would be on the same side as
> the quick release. Any other suggestions on proper adjustment? Is part
> of the answer that I simply need to work-in the new bearings?

if your wheel is like mine, these bearings are not "adjustable" - there
is no cone so there is no radial component to bearing play.  what you're
probably experiencing is looseness of the bearing inner on the soft
aluminum axle core.  the fix is plumber tape - like you've already done,
or some coke can shimming and loctite.  or get a new axle core.

 
 
 

Ksyrium Front Hub Adjustment Issue--Peter This May Be For You

Post by goldmine84 » Wed, 10 Sep 2008 23:25:48


Quote:

> > I recently replaced the bearings in my Ksyruim SL front hub. I greased
> > the bearings well and the axle too. The adjusment plate kept loosening
> > but some plumbers tape seems to have largely taken care of that issue,
> > although it did loosen up a bit recently. My problem is that I can't
> > seem to find the adjustment "sweet spot" where the play in the hub is
> > gone and the wheel turns smoothly. There is not a noticable roughness
> > when the wheel is turned but it really comes to an abrupt halt when
> > being spun. The adjustment plate is one the right side opposite the
> > quick release. I saw an older post from Peter (2004) suggesting that
> > the adjustment works better if the adjustment plate is on the left
> > side. Does anyone think this could make a difference? I can reverse
> > the axle but then the adjustment plate would be on the same side as
> > the quick release. Any other suggestions on proper adjustment? Is part
> > of the answer that I simply need to work-in the new bearings?

> if your wheel is like mine, these bearings are not "adjustable" - there
> is no cone so there is no radial component to bearing play. ?what you're
> probably experiencing is looseness of the bearing inner on the soft
> aluminum axle core. ?the fix is plumber tape - like you've already done,
> or some coke can shimming and loctite. ?or get a new axle core.

Just to be clear about what I have done: the plumbers tape was applied
to the threads on the axle to keep the adjustment plate from
loosening. The bearings are new so I am not sure why there would be
play between the bearing inner and the axle unless the axle has worn.

 
 
 

Ksyrium Front Hub Adjustment Issue--Peter This May Be For You

Post by jim bea » Thu, 11 Sep 2008 11:50:51

Quote:



>>> I recently replaced the bearings in my Ksyruim SL front hub. I greased
>>> the bearings well and the axle too. The adjusment plate kept loosening
>>> but some plumbers tape seems to have largely taken care of that issue,
>>> although it did loosen up a bit recently. My problem is that I can't
>>> seem to find the adjustment "sweet spot" where the play in the hub is
>>> gone and the wheel turns smoothly. There is not a noticable roughness
>>> when the wheel is turned but it really comes to an abrupt halt when
>>> being spun. The adjustment plate is one the right side opposite the
>>> quick release. I saw an older post from Peter (2004) suggesting that
>>> the adjustment works better if the adjustment plate is on the left
>>> side. Does anyone think this could make a difference? I can reverse
>>> the axle but then the adjustment plate would be on the same side as
>>> the quick release. Any other suggestions on proper adjustment? Is part
>>> of the answer that I simply need to work-in the new bearings?
>> if your wheel is like mine, these bearings are not "adjustable" - there
>> is no cone so there is no radial component to bearing play. what you're
>> probably experiencing is looseness of the bearing inner on the soft
>> aluminum axle core. the fix is plumber tape - like you've already done,
>> or some coke can shimming and loctite. or get a new axle core.

> Just to be clear about what I have done: the plumbers tape was applied
> to the threads on the axle to keep the adjustment plate from
> loosening. The bearings are new so I am not sure why there would be
> play between the bearing inner and the axle unless the axle has worn.

but the bearing doesn't sit directly on the axle - there's a sleeve on
the "adjustment plate" that sits between the axle and the bearing is
there not?  /that/ is what wears.  and because it's parallel sided,
there is no "adjustment" to be had.  thus it needs shimming or replacement.
 
 
 

Ksyrium Front Hub Adjustment Issue--Peter This May Be For You

Post by Qui si parla Campagnol » Thu, 11 Sep 2008 21:11:06


Quote:
> I recently replaced the bearings in my Ksyruim SL front hub. I greased
> the bearings well and the axle too. The adjusment plate kept loosening
> but some plumbers tape seems to have largely taken care of that issue,
> although it did loosen up a bit recently. My problem is that I can't
> seem to find the adjustment "sweet spot" where the play in the hub is
> gone and the wheel turns smoothly. There is not a noticable roughness
> when the wheel is turned but it really comes to an abrupt halt when
> being spun. The adjustment plate is one the right side opposite the
> quick release. I saw an older post from Peter (2004) suggesting that
> the adjustment works better if the adjustment plate is on the left
> side. Does anyone think this could make a difference? I can reverse
> the axle but then the adjustment plate would be on the same side as
> the quick release. Any other suggestions on proper adjustment? Is part
> of the answer that I simply need to work-in the new bearings?

Yes, these wheels seem to stay adjusted better if the plate is on the
left. I would ensure the bearings are also seated in the hub. They may
not be.
 
 
 

Ksyrium Front Hub Adjustment Issue--Peter This May Be For You

Post by goldmine84 » Thu, 11 Sep 2008 21:16:27



Quote:

> > I recently replaced the bearings in my Ksyruim SL front hub. I greased
> > the bearings well and the axle too. The adjusment plate kept loosening
> > but some plumbers tape seems to have largely taken care of that issue,
> > although it did loosen up a bit recently. My problem is that I can't
> > seem to find the adjustment "sweet spot" where the play in the hub is
> > gone and the wheel turns smoothly. There is not a noticable roughness
> > when the wheel is turned but it really comes to an abrupt halt when
> > being spun. The adjustment plate is one the right side opposite the
> > quick release. I saw an older post from Peter (2004) suggesting that
> > the adjustment works better if the adjustment plate is on the left
> > side. Does anyone think this could make a difference? I can reverse
> > the axle but then the adjustment plate would be on the same side as
> > the quick release. Any other suggestions on proper adjustment? Is part
> > of the answer that I simply need to work-in the new bearings?

> Yes, these wheels seem to stay adjusted better if the plate is on the
> left. I would ensure the bearings are also seated in the hub. They may
> not be.

Thanks for the advice. The bearings were nstalled by my LBS. Can I
simply eye-ball the to see that there are seated properly? If so, what
should I look for?
 
 
 

Ksyrium Front Hub Adjustment Issue--Peter This May Be For You

Post by Qui si parla Campagnol » Fri, 12 Sep 2008 04:36:21


Quote:



> > > I recently replaced the bearings in my Ksyruim SL front hub. I greased
> > > the bearings well and the axle too. The adjusment plate kept loosening
> > > but some plumbers tape seems to have largely taken care of that issue,
> > > although it did loosen up a bit recently. My problem is that I can't
> > > seem to find the adjustment "sweet spot" where the play in the hub is
> > > gone and the wheel turns smoothly. There is not a noticable roughness
> > > when the wheel is turned but it really comes to an abrupt halt when
> > > being spun. The adjustment plate is one the right side opposite the
> > > quick release. I saw an older post from Peter (2004) suggesting that
> > > the adjustment works better if the adjustment plate is on the left
> > > side. Does anyone think this could make a difference? I can reverse
> > > the axle but then the adjustment plate would be on the same side as
> > > the quick release. Any other suggestions on proper adjustment? Is part
> > > of the answer that I simply need to work-in the new bearings?

> > Yes, these wheels seem to stay adjusted better if the plate is on the
> > left. I would ensure the bearings are also seated in the hub. They may
> > not be.

> Thanks for the advice. The bearings were nstalled by my LBS. Can I
> simply eye-ball the to see that there are seated properly? If so, what
> should I look for?

They should be all the way in, no part of the bearing sticking above
the shelf where they live. Only correct way to get them in there is
with a bearing press. Most bike shops just wack on them to get them in
and kill them.