Threadlocker or grease?

Applying Lubricant or Using a Threadlocker?

This is a question that cyclists often face when they either can’t loosen the axle or when it keeps coming loose on its own. So, what should you do? Use a threadlocker and apply lubricant.

Most of the time, it becomes difficult to loosen the axle when metals start to interact or when dirt and corrosion appear, etc. To address this, you should apply lubricant (thick grease) to the axle. Especially if the hub axle is made of metal and the axle fastening is made of aluminum. You can find a suitable lubricant like Anti-Seize Compound.

Also, this helps reduce friction in the areas where the axle/frame/hub axle interact. A clean axle should generally be easy to unscrew.

The threadlocker on the thread has a different function – it prevents the axle from loosening on its own. It, on the contrary, tightens the thread and increases friction. You can consider using a product like Loctite Threadlocker Blue 242 as a threadlocker.

Can you apply lubricant over the threadlocker?

Anaerobic threadlocker works well as a prevention against spontaneous unscrewing after polymerization (drying). Even if you apply lubricant on top of it. Perhaps not as effectively, but it still serves its purpose. In this case, it works as a sealant. Most likely, it will squeeze out the lubricant in places where there is enough thread locker, and where it’s not, there will be a protective film against corrosion. It should be noted that the Locktite itself also reduces the risk of corrosion.

You should apply the threadlocker to a clean and degreased surface and then ensure the absence of oxygen, which is why it is called “anaerobic.” For example, after tightening the axle for a day.