Do your brake discs move when you ride your motorcycle? Do not worry, most of the time it is a problem of wear of one of the components of your braking system ... And it is indeed a perfectly solvable problem but it is also possible that the problem comes from Besides ! We explain all the possible causes of this phenomenon in this article…!
Admittedly, having brake rotors that wobble is one of the most worrying issues you can encounter with your motorcycle. Because abnormal movement of the brake discs when you ride or when braking can obviously indicate a problem with the discs of your motorcycle.
However, having brake discs that move along the radial axis is a common problem that can have several causes. Like having faulty brake discs or a badly placed fixing screw after a repair… Or a wear of one of the components of your braking system, and many others…! In this article, we are going to find out all the possible causes and solutions for this problem:
Motorcycle brake discs that move because they are worn
Abusive use of the brake discs can cause the metal of the disc to deform, and therefore lead to a deterioration in the braking quality of your motorcycle. And this can also cause unwanted movements of your brake discs. To avoid this type of problem, it is important to monitor the state of wear of your brake discs ... and to carry out regular checks on your brake system.
If the brake disc is worn or deformed, it must be replaced. Without forgetting to also change your brake pads! Because in addition, it is mandatory to also change the brake pads when changing the discs of the motorcycle.
Motorcycle brake discs that move, because of a seized eyelet
Unusual vibration of the brake discs can also be caused by a seized or insecure eyelet. The eyelet washers are small connecting elements between the friction part and the disc support web. They are used to maintain and fix the brake discs.
If these eyelets are seized, then you should untie them immediately! Using copper grease specially designed for motorcycle brakes. Once that is done, don't forget to degrease / clean your brake discs with acetone and also to secure the eyelets on the discs.
Brake discs that move because of a missing fixing screw
The fixing screws are parts which can be easily damaged when changing the brake discs. And which wear out more and more quickly due to the weight of the motorcycle. Having damaged sights or a lack of a fixing screw that is used to clamp the brake disc could well cause abnormal movements of these discs.
To solve this problem, nothing could be simpler! First, try to check if all the screws holding the brake discs are not damaged. Make sure they are secure, if not then try having a professional help you fix your drives in with other new screws.
Motorcycle brake discs moving due to a seized brake caliper
A seized or defective caliper can also reduce the performance of your brake system. It can also cause unusual vibrations and movements of your brake discs! These vibrations usually appear when you are riding or when braking your motorcycle.
This is a situation that happens infrequently, but in the event of a stuck caliper, you have two solutions! Either you change and you replace the brake caliper with another ... Or you try to release the brake caliper using a special lubricant for motorbikes.
The different types of motorcycle brake discs and unpleasant vibrations when braking
In addition to the reasons given above, these vibrations could be caused by the model of the brake disc. Nowadays, some motorcycles (ex.new generation motorcycles, sports motorcycles, etc.) are equipped with so-called discs floating or semi-floating, it is moving disks. Unlike other fixed discs, these have a floating structure! And this is what allows them to expand radially when braking without deforming and having greater friction capacity.
As the disc can move quite freely, riders who are not familiar with this type of disc and this kind of floating structure, tend to panic and assume that something is wrong with their motorcycle! While in real life, there is nothing to worry about and this is a completely normal phenomenon.
