Whether you are servicing or adjusting your position, you should regularly check that your steering is working properly. We will discuss the signs that must alert you, the tips to correctly change your direction, and a method to set the height of your stem.

How to diagnose a management problem?

Steering problems can have several causes. Here are some signs that should alert you of a dysfunction of your direction.


When driving, do you feel that your management is behaving abnormally? Check that she has not taken a game. Get off your bike and place yourself on the side of your handlebars by holding the handle with one hand.

Operate your left brake to immobilize the front wheel of your bike. Push your two-wheeler back and forth by putting your other hand (not used to brake) at the place where the fork fits into the frame.

If the bike moves, your direction has played, and it should be adjusted.


Do you feel small notches when you turn the wheel? Is the movement not fluid? Is your management reacting with great difficulty?

This may be due to improper adjustment or maintenance. The balls in your headset may also be worn.

To solve this problem, it is necessary to disassemble the steering, clean and lubricate the device, and then reassemble the assembly. If the problem persists, it will be needed to replace your headset.

Adjusting your direction

– First stage

Maintaining a wrong setting can cause a mechanical problem or damage your frame, or even cause a fall.

In an Aheadset steering system, there are three screws. In a threaded system, you have a screw. The screw common to both devices is an adjustment screw: it is located on the top of the stem, about a vertical axis.

The screws secured laterally on an Aheadset direction are clamping screws. Use an Allen wrench and loosen these two clamping screws to release your steering column from any tension.

Attention: some braking devices have a stop for the front brake cable. It must also be loosened.

You can now tighten the set screw (common to both devices) to make up for the play.

Our advice: do not act with force on the adjustment screw. Otherwise you will irreparably damage your headset.

The correction made, check if the game is still present by executing again the diagnostic test explained above. Still moving? Tighten a little more until the match completely disappears.

Finally, check that the stem and the wheel are aligned correctly. Then, tighten the stem screws to maintain steering.

If you have loosened a stop piece for the front brake, then it is time to tighten it again.


Two tests are then performed to verify that you have fully corrected the problem.

The first test is the one that allowed you to identify that your direction was playing. To perform the second exercise, lift the front wheel and turn it from right to left and from left to right. The rotation must be carried out freely.

If one of these two tests is negative, it may be necessary to change the direction of play or to repeat all of these settings …

Add or remove spacers

Your position on the bike does not suit you? Want to change the height of your handlebars?

You will need to add or remove spacers under the stem to adjust the position of your handlebars.

To do this, loosen all screws on the front of the stem. Remove them and release your hanger that is held on the bicycle by cables and ducts.

Then completely unscrew the screws that hold your stem and then the one at the top of the steering. You can now remove the result from the fork shaft.

Remove or add the spacers to define your new position.

Our advice: do not change your position by more than one centimeter. The ideal is 0.5 cm. Make some outputs and adjust this post again, if necessary.

With the correct height set, replace the stem and the stem cap. Tighten the bolt of this cap without force, then the side screws of the stem.

Replace the hanger and lightly tighten the four fastening screws.

A certain logic must be adhered to clamp the latter completely. As the video below shows, start with the screw at the top, left and continued with the screw at the bottom, right. You can then retighten the screw located at the bottom, on the left before ending at the top, on the right.

Our advice: follow the manufacturer’s instructions regarding the clamping force so as not to damage your hanger or stem by tightening too much.

You now have all the elements to identify a steering problem and correct it. Moreover, you? What are your tricks to realize this adjustment of your bike?


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