There is a question about how to service a mountain bike bottom

I take the cranks out and do the full service every three months or so. It usually takes around three months for dirt to get into the small gaps and contact points around the crankset and bottom brackets. The full one piece sealed cartridge style bottom brackets are simply replaced. When the bearings are rough and loose, they need to be replaced. Grease won't cure worn out bearings. To answer the original question, you don't need to lubricate the bottom brackets. How do I know if my bearings are in good shape? The bottom brackets make a grinding noise. It is a better bet if you ride your bike in a lot of rain or off-road. If it's a cheap bb and you don't care about failure, then let it eat so long as it's adjusted and running smooth. Water proof is a plus. I think the campy one is lithium. The grinding sound can be caused by the cup being too tight in an open/loose unit. A clicking sound can be made between the seatpost and frame. If you keep the seatpost in the frame too long, it will become stuck. Remove the seat binder bolt and grease the seat rails. It is time for a new mountain bike wheel bearing if there is a side-to-side wobble. There will be no noticeable play in hub bearings that are properly adjusted. The symptoms you describe seem to indicate a problem with the pedal bearings. I have seen bearings go in 6 months and others last 3 years. If your wheels feel rough when you spin them, it's time to service the hubs on your bike. The problem will usually be caused by wear in your bearings. For re-greasing the bearings you will need some cleaning solvent and waterproof grease, a rag, a toothbrush and a small container. If your cranks are wobbly, or there is a noise coming from between your cranks when you pedal, then you may need to replace your bottom brackets. There are three main formats of cranks, single, double, and triple. Great for protecting and lubricating bearings and other moving parts. It is not a lubricant. The automotive industry uses it to help prevent seizing at high temperatures.

How do you maintain a mountain bike?

I usually take the cranks out and do the full service every three months or so. It usually takes around three months for dirt to get into the small gaps and contact points around the crankset and bottom brackets. The full one piece sealed cartridge style bottom brackets are simply replaced. When the bearings are rough and loose, they need to be replaced. Grease won't cure worn out bearings. To answer the original question, you don't need to lubricate the bottom brackets. How do I know if my bearings are in good shape? The bottom brackets make a grinding noise. It is a better bet if you ride your bike in a lot of rain or off-road. If it's a cheap bb and you don't care about failure, then let it eat so long as it's adjusted and running smooth. Water proof is a plus. I think the campy one is lithium. The grinding sound can be caused by the cup being too tight in an open/loose unit. A clicking sound can be made between the seatpost and frame. If you keep the seatpost in the frame too long, it will become stuck. Remove the seat binder bolt and grease the seat rails. It is time for a new mountain bike wheel bearing if there is a side-to-side wobble. There will be no noticeable play in hub bearings that are properly adjusted. The symptoms you describe seem to indicate a problem with the pedal bearings. I have seen bearings go in 6 months and others last 3 years. If your wheels feel rough when you spin them, it's time to service the hubs on your bike. The problem will usually be caused by wear in your bearings. For re-greasing the bearings you will need some cleaning solvent and waterproof grease, a rag, a toothbrush and a small container. If your cranks are wobbly, or there is a noise coming from between your cranks when you pedal, then you may need to replace your bottom brackets. There are three main formats of cranks, single, double, and triple. Great for protecting and lubricating bearings and other moving parts. It is not a lubricant. The automotive industry uses it to help prevent seizing at high temperatures.

How often should the bottom brackets be serviced?

I take the cranks out every three months and if it is a threaded bb, I remove it and do the full service. The three month mark is usually enough time for dirt to get into the small gaps and contact points around the crankset and bottom brackets.

Can the bottom brackets be fixed?

If the design has the bearing seals exposed, it may be possible to service them. The full one piece sealed cartridge style bottom brackets are simply replaced. You would need a tool to remove and replace the sealed cartridge.

I don't know if I need to grease the bottom brackets

The bearings need to be replaced when they are rough and loose. Grease won't cure worn out bearings. To answer the original question, you don't need to lubricate the bottom brackets.

How long should the bottom brackets last?

Simple rule is "if it ain\'t broke don\'t fix it" It's a good idea to do normal maintenance and keep things clean.

How do I know if my bearings are good?

The unit should be replaced if you feel a rumbling or grinding sensation. The bottom brackets will make a noise.

How often should I wash my bearings?

Depending on use and grease quality, the best practice is 1-2 years. It is a better bet if you ride your bike in a lot of rain or off-road. If it's cheap and you don't care about failure, then let it eat as long as it's running smoothly.

Can I use white grease on my brackets?

You can't tell about the drag when you are riding. Water proof is a plus. I think the campy one is also dangerous.

Why is the bottom part grinding?

The lack of grease in the unit is one of the factors that can lead to grinding. The grinding sound can be caused by the cup being too tight in an open/loose unit.

Why is the bottom part clicking?

Remove and grease the seatpost. A clicking sound can be made between the seatpost and frame. If you keep the seatpost in the frame too long, it will become stuck. Grease the seat rails and tighten the seat binder bolt.

Is it a good idea to replace my bike bottom brackets?

Drop the chain off of the smallest chainring and spin the cranks to check for a replacement. It is time for a new one if there is a side-to-side wobble.

Do you know how to check a mountain bike wheel bearing?

If you want to check for bearing play, hold the top of the wheel in the bicycle and gently push and pull sideways to feel for movement of the wheel. There will be no noticeable play in most hub bearings.

What happens when the bottom brackets fail?

If you are lucky, your chain will come off, your crankset will become wobbly, and your bearings will lose their ability to hold the shell.

Why is my crank clicking?

There are more than one component that can contribute to a clicking or grinding sound in your drive train. The symptoms you describe seem to indicate a problem with the pedal bearings.

How long do MTB bearings last?

Usually every year for the casual once a week rider. I have seen bearings go in 6 months and others last 3 years. Don't let that shock out, keep an eye out for yourself.

Should a bike hub be serviced?

It's time to service the hubs on your bike if your wheels feel rough when you spin them. Wear in your bearings is usually the cause of the problem.

Can you make Grease bottom brackets?

To change the bottom brackets, you need a wrench, a pin, and a lock ring. You will need a toothbrush, a rag, and a small container to clean the bearing cages.

What about the bottom brackets?

The bottom brackets allow your cranks to turn. If your cranks are wobbly, or there is a noise coming from between your cranks when you pedal, then you may need to replace your bottom brackets.

Does the crankset come with bottom brackets?

The crankset, also called the chainset, consists of crank arms, bottom brackets, and chainrings. There are three main formats, single, double, and triple.

What is the bottom part of a bike?

The base of the stem that goes from the center of the pedal to the top of the bicycle is where the bottom brackets are located.

What is the grade of grease?

WD-40 Specialist® Marine-Grade Grease provides superior lubrication and protection in wet and moist environments. It's great for protecting and lubricating bearings and other moving parts.

What is copper grease?

There is an anti seize compound called copper grease. It is not a lubricant. It is often used to help prevent seizing in the automotive industry.