Mavic Cosmic Carbone Slr wheel group has its own adjustment mechanism, the official word is QRM. Wheel adjustment tool accessories in there, but why you want to adjust, how to adjust, including me, and many with SLR wheels of the car
Mavic SLR wheel group has its own adjustment mechanism, the official word is QRM. Wheel adjustment tool accessories in there, but why you want to adjust, how to adjust, including me, and many of the riders with the SLR wheels may not be very clear, now combined with TW friends network text talk here, or else, etc. Wheels rot may have to adjust when it is unclear how this happened.

Take a look at the original explanation

1.1 free play adjustment

Hub play must always be gauged with the wheel fitted and tightened in the frame or fork. Tightening the quick release skewer significantly increases the lateral pressure

exerted on the bearings. Therefore:

? If there is play in a wheel not fitted into the frame or fork, it may disappear once the wheel has been fitted;

? If there is no play in a wheel not fitted into the frame or fork, it is possible that tightening the quick release skewer will over-stress the bearings, thus damaging them.

Adjust the adjustment nut by fully tightening it and then untightening it by a 1/4 turn, so as to close the quick release lever (CLOSE position) with a suitably large force.

However, a too large tightening force may damage the bearings.

This tightening force is a subjective parameter that is directly dependent on the end user, and as such it is difficult to accurately determine the optimum bearing adjustment

at the factory.

In order to avoid any problems for your customers, we factory set bearing play by simulating an extreme quick release tightening force.

There is therefore likely to be some play in the hub of a new wheel fitted to a bike with a lower quick release tightening force than that used in the factory.

Apply the following procedures to set the amount of play.

WARNING: Adjusting the play is a delicate operation which consists of identifying the balance point between play and no play.

Having no play does not necessarily mean that the hub is correctly adjusted as the bearings may be over-stressed.

1.1.1. QRM + HUB

QRM + designates Mavic hubs that can be adjusted using the hub wrench M40123. For the 2005 range, this concept is used on the following Mavic Cosmic Carbone Slr Wts wheels:

? IO

? Comete road and track

? Cosmic Carbone SL

? Ksyrium SL

? Ksyrium Elite

? Crossmax SL and SL Disc

? Crossmax XL and XL Disc

? Deemax UST

This hub has an adjustment nut on the left hand side of the wheel compatible with the hub wrench M40123.

This very simple system allows very accurate and quick adjustment of bearing play.


Tools needed

? 1 hub wrench M40123

1. Fit the wheel in the frame or fork and tighten the quick release skewer using a reasonable force;

2. Delicately move the top of the wheel to the right and then the left of the bike to feel the play;

? If there is some play, lightly tighten the adjustment nut using the hub wrench M40123 and check for play: repeat the operation as many times as required until there

is no play;

? If there is no play, to be sure the bearings are not over-stressed, untighten the adjustment nut until some play can be felt and then carry out the above operation.

The 4 lugs of the hub wrench M40123 must be fully inserted into the holes of the adjustment nut, making sure to correctly position the wrench against the nut

(On Crossmax XL Disc and Deemax UST front wheels, only the 2 lugs at the extremities of the wrench are used).

To avoid damaging the bearings due to over tightening of the adjustment nut, the wrench M40123 is made from resin: a sort of safety valve; the lugs will break before the

bearings are damaged.

On the wheel hubs for Cosmic Carbone Slr wheels and the frame (fork) between a sliding parts, and wheels and the frame (fork), when the link between, which is by quick release. As long as the power of the quick release lock fit after the wheels and the frame can be (fork) through the quick release locking, we can happily cycling.

But in wheel hubs and the frame (fork) in order to work through the quick release locking, hub size this time frame (fork) size is bound to have a certain tolerance exists. If the quick release locking later, causing the hub bearings are subjected to excessive pressure, this way it will turn the wheel ring true. Given the quick release tighten the future, because the distance between the hub and the frame does not fit properly, it will cause a wheel set will result from side to side, causing traffic hazard, although this may be small shake.
Simply put:

Quick release tighten -> hubs and the frame (fork) spacing is too small -> hubs in excessive pressure on the bearing wheels turning ring true =

Quick release tighten -> hubs and the frame (fork) spacing is too large -> hub bearing pressure on the wheel will be too small = sloshing around

Therefore, in some Mavic wheels can fine-tune the hubs to solve the above problems. Of course, this feature is provided SLR is adjusted, the adjustment mechanism is called QRM.

In fact, when the wheel set in the factory default values ​​are basic, basically will not buy the wheel after, no adjustment will cause danger or bearing damage.

Time will buy wheels with a special adjustment tool. Such tools are too tight to prevent the bearing is bad tune mechanism.

MAVIC QRM adjustment tool

Hands-on adjustment

Adjustment, first of all to wheel assembly to the frame (fork) above, then the quick release lock suitable strength, not too tight or too loose.

You can see there are a few holes in the right side of the hub.

Then the tool to adjust the projection point to.

With the front wheel with the fork. Adjusted to fit too tightness.

And the frame with the rear wheel is the rear wheel hub comparing photos can see the pits.

How do I know if the lock to the appropriate power?

If that's too tight, it is obvious that the wheels turn more and more difficult. Increasingly ring true.

If that's too loose, turn up the wheel becomes very smooth, but also side to side.

So adjusted, the so-called proper tightness, a hand to shake wheels when the wheel is not going to the left and shake it.

Pushing to hand to see whether the wheel shaking from side to side, if you will that is too loose. Given the tight tone, then turning will be very astringent, too tight will increase bearing wear, thereby reducing the bearing life. Mavic Cosmic Carbone Slr Wts news from http://maviccosmiccarboneslrwts.webs.com/


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andycoventry [110 posts] 4 years ago

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