Why is my cassette wobbling?

We all know a wobbling cassette can be really annoying. On one hand, we are unsure if it is safe to bike with the cassette wobbling and on the other hand we are unsure as to what is causing the cassette to wobble. This article will answer all your questions related to cassette wobbling. As regular bikers, we often come across issues related to cassettes and believe it or not, cassette wobbling is quite common. If you have recently come across this problem and looking for solutions, you have come to the right place. We will address the common causes of cassette wobbling and give practical solutions. So if you are wondering why is my cassette wobbling, wonder no more.

Why is my cassette wobbling?

Cassette can be wobbly due to a number of reasons. We will look at the most common causes and some rare ones. This will hopefully help you determine why your cassette is wobbling and you will be able to fix the issue.

Cassette is loose

This is a common reason as to why the cassette may be wobbling. During installation, you may have not tightened the cassette fully. Overtime, this causes the the cassette to unscrew and become loose. This leads to it being wobbly.

This is too basic to be true but believe it a lot of people face a wobbling cassette only to realize that the cassette was loose. You can simply tighten the cassette and that should do the trick. To tighten the cassette, simple remove the rear wheel. Slide the cassette tool in the space where the cassette cutout is. Using a wrench, rotate the cassette clockwise. This should tighten the loose cassette. Put the wheel back on the bike. You should see that the cassette is no longer wobbling.

No spacers present

Another common cause of a wobbling cassette is lack of spacers. This is a bit technical, so let me explain. A lockring is used to secure cassette to the hub. If the cassette is too narrow for the hub, it will not be possible for the lockring to secure the cassette. To stop this from happening, a spacer is needed.

Hub size may vary

Your cassette may be wobbling due to the variation in the hub size. Even a minor size variation of 1mm could cause the cassette to wobble. This variation in the hub size causes the cassette to move up and down while you are pedaling. If the hub and cassette are of exact size, then you won’t face this problem. This variation is usually down to manufacturing but if you purchase your bike from a well reputed brand, this should not be an issue.

Rear axle may be bent

The wheel axle is where the hub and the wheel rotate and make the bike go forward. In case the axle is bent, both the wheel and the hub will be wobbly as they would be rotating around a bent axle. Your axle may be bent due to the bike falling on a hard surface. Whatever the case may be, a bent rear axle will cause the cassette to wobble. Unfortunately, the only solution for a bent rear axle is to replace it.

Hub bearings may be too tight

Hub bearing play an important role in the rotation of the rear hub around the axle. If the hub bearings are too tight, it will it quite difficult for the hub to rotate freely. You need to find the right balance. If the bearings are too loose, the hub won’t be stable. Ultimately, hub bearings being too tight or loose will end up making the cassette wobble. So you can adjust the tightness of the hub bearing to solve the problem of cassette wobbling.

Lockring may be bent

Just like the rear axle being bent, a lockring being bent will also cause the cassette to wobble. The lockring is used to secure the cassette to the hub. If the lockring is bent, it will not be able to secure the hub and the cassette. The solution to a bent lockring is to buy a new one. Lockring is inexpensive so it should not take a lot of your pocket.

Final Thoughts

We hope this article answers your question “Why is my cassette wobbling?” Many cyclists are a bit wary of a wobbling cassette. The last thing you want is to meet up in an accident due to a wobbling cassette. However in most cases, wobbling cassettes should not be a cause of concern. You can easily fix the problem of wobbling cassette by going through the common causes mentioned above. Sometimes, a wobbling cassette may indicate a deeper problem. In that case, it is much wiser to take the bike to a mechanic rather than fixing it yourself.

Disc Brake Pulsing: Causes and Solutions

Disc brake pulsing is a common problem among cyclists. Pulsing disc brakes can be annoying while cycling. Many people have asked about disc brake pulsing and whether it is a cause of concern or not. It is recommended to fix pulsing disc brakes as it can do more damage to the bike in the long run.

Ever wondered what causes disc brakes to pulse? This article will explain in detail the reasons behind disc brake pulsing and what are the solutions for it. We will first look at the causes of disc brake pulsing. We will then look at how to fix disc brake pulsing.

Causes of Disc Brake Pulsing

There could be a number of things causing disc brake pulsing. Let’s start from the most common ones first followed by some rare ones.

Brake pads have worn out

The most common cause of disc brake pulsing is that the brake pads have worn out. This can happen overtime and quite common among bikes that have covered a lot of miles. Overtime, miles accumulate and the frequent use of brakes wears down the brake pads. This could very well be the reason why disc brakes are pulsing.

Warped rotors

Rotors can become warped when you brake hard. Hard braking is used mostly to stop quickly or in emergency. Frequent hard braking causes heat to rise in rotors and brake pads. This overheats the rotors and as result, warps them. This overheating in brake pads is another cause of disc brake pulsing.

Brake pads misaligned

It is quite possible that the disc brakes are pulsing because the brake pads are not aligned properly. Misalignment of brake pads will cause the disc brake to pulse because when you press the brakes together, you will feel a spring like feeling resisting the brakes.

Rust deposit

Taking the bike out on trails can cause rust and dust to buildup in the brake pads. When you press the brakes, this rust can increase the friction and heat up the brakes. This can also cause disc brakes to pulse.

Solutions to Disc Brake Pulsing

Following are the solutions to disc brake pulsing.

Replace the brake pads

The first thing to do if you have pulsing disc brakes is to replace the worn out brake pads. With worn out brake pads, there is not much you can do in repairing them. The best option is to replace the worn out brake pads. Failing to replace the brake pads and using the same worn out brake pads will cause further damage to your bike. This will increase the repair cost as apart from the cost of fixing the brake pad, you may also have to replace the damaged parts caused by using worn out brake pads.

Avoid hard braking

One great way of avoiding disc brake pulsing is to brake gently. Try to avoid hard braking and sudden stops as much as you can. Hard braking wears out the brake pad and overheats the brakes, which causes disc brake pulsing. By coming to a stop gently, you will not overheat the brakes and as a result, avoid brake pulsing altogether.

Wheel adjustment

Another solution to disc brake pulsing is to align the bike wheels properly. Sometimes, the wheel is not aligned properly which causes the brakes to pulse. You should also check the bolts to see if they are tightly screwed and there is no loose end. This will help with the issue of disc brake pulsing.

Frequently Asked Questions (FAQs)

Why do my brakes pulsate when slowing down?

Disc brakes pulsate when you hard brake and stop suddenly. This is because when you press brakes hard, the brakes heat up and this overheating is what causes the brakes to pulsate. Another reason for brakes pulsating is that your brake pad may be worn out. You should replace the worn out brake pad. If your bike has been covering a lot of miles lately, it is natural for the brake pad to wear down. If this is the case, it is recommended to replace the brake pads.

How do I fix brake disc pulsing?

Brake pads have the tendency to wear out when used to slow down suddenly. The brake pulsing can be fixed by replacing the worn out brake pads. If you only feel brakes pulsating when you brake, you should try to avoid hard braking. Hard braking is when you stop suddenly. This act overheats the brakes and disc brake pulsing occurs. Therefore, it is important to stop gently to avoid disc brake pulsing.

Is it safe to ride with disc plates pulsing?

Yes it is safe to ride with disc plates pulsing. However, if the plates have been pulsing for a long time, it is better to get it fixed. By cycling on pulsating disc brakes, you will damage other components of the bike. Disc brakes pulsing can be easily sorted by replacing brake pads. However, by delaying the replacement of the brake pads, you may end up causing more damage to other bike parts. As a result, the cost to fix your bike will rise significantly. Therefore, it is recommended to solve the disc brake pulsing problem. Other than that, it is safe to ride with pulsing disc brakes.


This article goes in detail about what causes disc brake pulsing and what can be done to fix it. Pulsating brakes are a common problem and many people write to us about this problem. Hopefully with this article, you will be able to solve the issue of brakes pulsing. Let us know in the comments if you have more solutions to pulsing disc brakes. We would love to hear from you.

Best Grease for Bottom Bracket Bike Bearing – A Complete Guide

Picking the best bike grease is as important as buying a good bike. This is because regular use of bike grease is an integral part of bike maintenance which will enhance the life of your bike.

Given the abundance of grease options for bottom bracket bike bearing, it can be a bit overwhelming which one to choose for your bike. This is why we have compiled the list of the best bike greases you can buy and enhance the longevity of your bike.

Most bikers are unaware of the bike grease for bottom bracket on their bike. This is not a surprise as there are just so many options to choose from.

Bottom Bracket Bike bearing needs to be lubed regularly to enhance the performance of the bike. Regular use of grease will make the bike run as efficiently as possible. If you are one of those people unsure about which bike grease is best for your bike, you have come to the right place.

This article is a complete guide to the best grease for bottom bracket bike bearing.

5 Best Greases for Bike Bearing

With so many options to choose from, it can be quite a challenge to pick the right bike bearing grease. As experienced biker with more than a decade of cycling experience, I have compiled a list of the 5 best bike greases. You can pick any one of the five according to your budget and availability.

Park Tool PolyLube 1000 Bicycle Grease

Park Tool PolyLube 1000 bicycle grease is one of my all time favorites. I use it regularly and am most impressed by it. A little goes a long way with this bike grease. I cycle in different types of terrains and weathers. Park Tool PolyLube has been my go to grease as it lasts a long time. This means that you can actually save money as you don’t have to apply again and again.

Park Tool PolyLube 1000 uses polyurea lubricant. This is very effective against corrosion and stains. I myself have noticed how effective the bike bearing is after application.

For those looking to bike in challenging conditions, this lubricant is a great choice. The grease repels moisture, which means you can take the bike, after applying it with Park Tool grease, in wet conditions with confidence.

Another thing I like about this grease is that it comes in different packaging. This is great news if you are trying to save as buying the bigger packaging may take a big chunk out of your pocket. The grease is expensive compared to other options in the market but I have noticed that a little goes a long way. Even a small tube will last you a long time as you don’t have to reapply a lot.

Reasons to BuyReasons to Not Buy
High sheer strength works great in extreme conditionsPricey
Repels moisture
Comes in different sizes
Polyurea lubricant is effective against corrosion

Finish Line Premium Grease with Teflon

Finish Line Premium Grease with Teflon is the second grease I recommend. It is infused with teflon which is great in extreme conditions. A lot of professional bikers use this grease because it just works so well, for them.

Finish Line grease is waterproof. A lot of the times, after applying grease, it can rain. Rain and water can wash away the effects of the grease. However, as this grease is waterproof, water won’t affect it. For those cyclists who cycle in different terrains, this is a go to product. Another great feature of this grease is that it can also be applied to other parts of the bike like hubs. This makes it a versatile product.

One thing to mention here is that the grease does not come with an applicator. This makes the process of applying it on the bearing a bit clumsy. You also need to apply pressure on the tube like a toothpaste. This may be make or break for some people, so I felt it important to mention it.

Reasons to BuyReasons to Not Buy
Fully waterproofApplication process a bit troublesome
Prevents rust and corrosion
Teflon works great in extreme conditions
Can be used on headsets and hubs as well

White Lightning Crystal Grease Biodegradable

White Lightling Crystal Grease is a unique grease than other options in the market. This is because it is clear and odorless. Clear grease means that it won’t stain the place where you apply it. A lot of people also don’t like the smell of the grease.

For them, White Lightning Grease is a great option as it is odorless. Another good thing is that it comes with an applicator, which makes applying the grease very easy.

One thing I noticed about this grease, unlike the other two mentioned above, is that it does not not last long. You have to reapply it regularly as it just doesn’t have the staying power. That is not to say that it is not good. It’s just that compared to the other two options I mentioned above, this one is a bit low on lasting power.

Reasons to BuyReasons to Not Buy
Biodegradable and waterproofDoesn’t last long
Non toxic
Crystal clear grease doesn’t stain

Park Tool HPG-1 High Performance Bicycle Grease

Park Tool HPG-1 High Performance Bicycle Grease is the second Park Tool grease in this list of the best bike greases. This is how highly I rate the brand. This particular product is made for high performance bikes.

This comes at a price though as the grease is more expensive than other options in the market. However, if you are a professional and want the very best, then you can’t go wrong with Park Tool HPG-1 High Performance bicycle grease.

It is water resistant. This means that it will withstand water to some extent. However, it is not waterproof. The grease is made for extreme temperature range from -20°F to 540°F. This makes the grease a great option for places with snow or extreme heat.

Reasons to BuyReasons to Not Buy
Made for high performance bikes and componentsPricey
Extreme temperature range: -20°F to 540°FNot waterproof
Water resistant
Effective application process

SHIMANO Dura-Ace Grease

SHIMANO is a well renowned brand which is popular among bikers. They are manufacturers of bike components such as gears and hubs.

The Dura Ace grease is top of the line grease product from the brand. The grease does not degrade easily and can withstand exposure to water and dirt for a long time. It is easy to apply and lasts a long time.

However, it comes in 50g jar and for the price, the quantity is quite less. You don’t need to reapply often though as the grease does last a long time.

Reasons to BuyReasons to Not Buy
Renowned brandQuantity is less for the price
Doesn’t degrade easily Only comes in 50g
Easy to apply
Withstands exposure to water and dirt

Factors to Consider When Buying Bike Grease

Now that you know the 5 best bike greases for bottom bracket bike bearing, let us discuss the factors you must consider before buying bike grease. Knowing this will allow you to make a calculated decision on which bike grease to go with.

Know the type of Grease

There are a number of greases in the markets for bottom bracket bike bearing. It is extremely important to know the type of greases.

The most common type of grease is the lithium grease. It is available all over the market and is versatile. Lithium grease can withstand exposure to heat, water and dirt, making it very reliable. You also get the polyurea grease. The Park Tool PolyLube 1000 is an example of the polyurea grease. Polyurea grease is reliable against corrosion which is a desirable trait to have in a grease.

Resistance against elements

A lot of greases offer features such as water resistance and the ability to withstand extreme temperatures. Water resistance is a useful feature to have in a grease as this will help the grease last longer. Water won’t break down the grease.

Waterproof is better than water resistant. Water resistant greases for bottom bracket can withstand water to a certain time. Ultimately, water will break through the resistance. Waterproof, however, will withstand water for a very long time. So you can see if the grease you are buying has this feature or not.

Bottom bracket greases can break down in extreme weather fluctuations. Extreme cold and heat can break down the grease, meaning you will have to reapply it on the bearing. Therefore, opt for greases which offer protection against the varying temperatures.

Frequently Asked Questions (FAQs)

How often must I apply grease to my bike?

The answer depends on the type of grease you have. For example, if you pick a grease from the list above, you won’t have to apply the grease too often. This is because these greases can withstand temperature fluctuation, are water resistant and can last a long time.

I normally like to maintain my bike regularly. I usually apply grease to my bike bottom bracket every couple of months. However, you can even go longer periods depending on how often you bike and what sort of terrain you bike on.

Can the grease stain my bike?

This is a concern many people have that the bike will get stained after applying the grease. This can be avoided if you opt for a good quality grease which do not stain the bike bearing.

Greases are important for bike maintenance and increasing the longevity of the bike. Therefore, you must not forget to grease regularly thinking that greasing will stain the bottom bracket bike bearing or any other part of the bike.