A bicycle chain, like any other mechanism, is subject to wear and tear. It depends on the conditions in which it is operated. Particular attention should be paid to how to properly lubricate the chain.
First of all, you need to understand which lubricant to use. Here you need to choose a compromise between the liquid and the viscosity of the composition. The thinner the lubricant, the deeper it penetrates into the chain joints, but the more often the chain will need to be relubricated. Among the liquid formulations, silicone grease in tubes with a narrow neck is suitable, which will allow you to apply the grease point-wise to the joints of the chain links. A grease like graphite will last longer on the chain, but its penetration is much lower. A compromise option would be the use of special bicycle compounds that have adaptive properties - during the movement of the chain, it becomes liquid, and when it is parked, it thickens.
If your wallet allows, you can use machine oil for motorcycle chains and chainsaws. This oil has balanced physical and anti-static properties to keep the chain clean in any weather. With this lubricant, the chain will function normally with a range of 500 to 1500 km. For example, Motul C4 Chain Lube FL grease is very popular, the cost of which for 400 ml will not be less than 600 rubles. In no case should you use ordinary engine oil, which is poured into a car engine. It is not designed to work in the external environment, in the air. Dirt will accumulate extremely quickly on it.
Clean the chain before lubricating it. This should be done either with a soft dry cloth (if the chain is not very dirty) or soaked in kerosene (if the chain is heavily soiled and crunches during driving). For a more thorough cleaning, you can use a special machine. It consists of a plastic box and hard brushes that clean the chain efficiently. It is worth pouring into the box either kerosene or a special mixture for cleaning the chain, which is sold in specialized stores. At worst, a hard toothbrush soaked in kerosene is suitable for cleaning the chain.
Once the chain shines, you can start the lubrication process. If the bike user decides to use grease, then the best solution is to use a toothbrush. Under no circumstances should the entire chain be lubricated with a solid, otherwise dirt will stick to it, and the chain will break very quickly. It is necessary to apply grease only to the place of articulation of the links, removing excess grease with a dry soft cloth. The same applies to liquid formulations. The procedure should be repeated 2-3 times in order for the grease to penetrate into the chain.
Subsequent lubrication should be based on how easily the chain moves through the system and cassette, as well as the sound it makes. If the chain does not crack, does not creak and does not jam during movement, then lubrication of the chain is not required.
