Sideways movement at the rim.

[gaz]

My Mavic Ksyrium SLS wheels have some sideways movement at the rim, enough to be able to move it by hand and to hit the brake pads. I noticed this the other day when track standing and the rim was rubbing on the brake that I have never felt before.

The strange thing is, it is all around the wheel and on both front and rear. The tension in the spokes feel fine.

Is this just a case of 1/4 turn on each spoke or is there something else wrong, never come across such a problem before

 

[mcshroom]

How tight are your hub nuts? Could be the hub rocking a bit which would be more obvious at the rim

 

[Kookas]

That would be loose ball bearings I think; the cones have either worn out or have just come loose from use and abuse. My rear wheel was similar, and I just had to tighten it up a bit using a couple of spanners.

 

[gaz]

I hope the bearings haven't worn away, only done 500 miles :O

I can wiggle the axle when inside the hub, I take it that is a sign of loose cones. I'll have a gander at those.

 

[jack smith]

Definatley sounds like you just need to tighten the nuts, make sure you do it with proper come spammers to adjust the bearings so they run smooth with no play first then tighten the locking nuts while keeping pressure on the cone spanner to stop the cone nut moving

 

[gaz]

Oh fiddle sticks. Gotta work out how to do it on these mavic hubs. Can't easily get the covers off to see the nuts

 

[gaz]

Ok seems like mavic has their own way of doing this. They have this special tool that you use to tighten the hub. Done that, still doesn't work :/
http://www.tech-mavic.com/tech-mavi...mic_Carbone_SL/Bearing_Adjustment_QRMPlus.pdf

 

[Hacienda71]

Aren't Ksyriums sealed unit bearings? You might need to change them.
You will get some lateral flex in a wheel but not hitting the blocks when track standing.

 

[gaz]

Aren't Ksyriums sealed unit bearings? You might need to change them.
You will get some lateral flex in a wheel but not hitting the blocks when track standing.

I think they are sealed units, I can't see how you even taken the unit out. Strange that they are doing this after 500miles from new :/

 

[Hacienda71]

I can't see the bearings on both wheels wearing out that quickly. Are you feeling any play or grittiness when spinning the wheel holding the axle?

 

[02GF74]

depending on how hard you pull/push, any spoked wheel could be made to flex enough - doing a track stand would put quite a lot of force.

try to find out where the movement is coming from - could be loose spokes, looseness in the bearings, frame flexing, skewer not done up tightly - most likely too be one of the first 2 in the list.

you mention mavic wheels - if they are like crossmax (mtb) then the bearings are sealed unit with an adjuster whcih has round indents requiring a special spanner to do up - it probably could be done with one or 2 screwsrivers as it does not need to be done up tight - too tight and you'll put too much preload on the bearings thus knackering them.

 

[gaz]

I can't see the bearings on both wheels wearing out that quickly. Are you feeling any play or grittiness when spinning the wheel holding the axle?

Feels fine.

depending on how hard you pull/push, any spoked wheel could be made to flex enough - doing a track stand would put quite a lot of force.

try to find out where the movement is coming from - could be loose spokes, looseness in the bearings, frame flexing, skewer not done up tightly - most likely too be one of the first 2 in the list.

you mention mavic wheels - if they are like crossmax (mtb) then the bearings are sealed unit with an adjuster whcih has round indents requiring a special spanner to do up - it probably could be done with one or 2 screwsrivers as it does not need to be done up tight - too tight and you'll put too much preload on the bearings thus knackering them.

I got the special tool to tighten the hubs.

 

[Globalti]

Just read the pdf on the Mavic site about adjusting your bearings. They could easily have settled since new.

 

[Cyclist33]

Definatley sounds like you just need to tighten the nuts, make sure you do it with proper come spammers to adjust the bearings so they run smooth with no play first then tighten the locking nuts while keeping pressure on the cone spanner to stop the cone nut moving

What's a come spammer?!