I’m going to show you how to install a BMX bottom bracket. This is something that I had to learn how to do when I started racing. It’s not hard, but there are a few tricks that will make it go a lot smoother. So, whether you’re a new racer or just installing a bottom bracket for the first time, read on.
There are a few different types of bottom brackets, but the one we’re going to focus on here is the cartridge-type bottom bracket. This is the most common type of bottom bracket, and it’s what I have on my bike. It’s also the type that’s easiest to install.
How to Install BMX Bottom Bracket 2023 - Guide
You’ll need a few tools for this job: an adjustable wrench, a socket wrench set, and a bottom bracket tool. The bottom bracket tool is specific to the type of bottom bracket you have.
Mine is an FSA BB-7000, so yours might be different. You can usually find the model number on the back of the bottom bracket shell.
The first thing you’ll need to do is remove the old bottom bracket. If you’re not sure how to do this, there are plenty of tutorials online. Once the old bottom bracket is out, you can start installing the new one.
Grease the threads on the inside of the bottom bracket shell. This will help keep the bottom bracket from seizing up over time. Then, thread the bottom bracket into the shell. Be sure to go slowly and not cross-thread it.
Tighten the bottom bracket with the socket wrench until it’s snug. Then, use the bottom bracket tool to tighten it a bit more. You don’t want to overtighten it, or you could damage the bottom bracket.
Check out: Easyway to do Manual BMX
Second method
The BB Shell
The first thing you’ll need to do is remove the old bottom bracket. If you’re not sure how to do this, there are plenty of tutorials online. Once the old bottom bracket is out, you can start installing the new one.
Grease the threads on the inside of the bottom bracket shell. This will help keep the bottom bracket from seizing up over time. Then, thread the bottom bracket into the shell. Be sure to go slowly and not cross-thread it.
It is important to tighten the bottom bracket with the socket wrench until it is snug. Then, use the bottom bracket tool to tighten it a bit more. You don’t want to overtighten it, or you could damage the bottom bracket.
Related Article: How to Remove BMX Grips
Installing the Bottom Bracket
Once the bottom bracket is installed in the BB shell, you’ll need to install the cranks. Again, there are plenty of tutorials online if you’re not sure how to do this. Just be careful not to overtighten the crank bolts.
Once the cranks are installed, you can install the chain. If you’re not sure how to do this, there are plenty of tutorials online. Again, just be careful not to overtighten the bolts.
And that’s it. You’ve now successfully installed a bottom bracket. Just be sure to check all the bolts.
Related Article: How to Bunny Hop BMX
Tips for installing BMX bottom bracket
- Be sure to grease the threads on the inside of the bottom bracket shell before installation. This will help keep the bottom bracket from seizing up over time.
- When installing the bottom bracket, be sure to go slowly and not cross-thread it.
- Tighten the bottom bracket with the socket wrench until it’s snug. Then, use the bottom bracket tool to tighten it a bit more. You don’t want to overtighten it, or you could damage the bottom bracket.
- Once the bottom bracket is installed, be sure to install the cranks carefully. Just be careful not to overtighten the crank bolts.
Warning
- When installing the cranks, be careful not to overtighten the crank bolts.
- When installing the chain, be careful not to overtighten the bolts.
How do you find out what type of bb do you have?
To determine the type of BB you have, examine its packaging or label for information such as caliber (e.g., 4.5mm, 6mm), material (steel, plastic), and weight. If the information is not available, compare the BB’s size and weight with known types or consult the manufacturer’s website or customer support for assistance.
Conclusion
Installing a bottom bracket is not hard, but there are a few things you need to know. Hopefully, this article has helped you out. If you have any questions, feel free to leave a comment below.
Check out: How to Choose a Bottom Bracket Bearing BMX
Frequently Asked Questions
How much does it cost to replace a bottom bracket?
It depends on the type of bottom bracket you need and where you get it from, but generally speaking, you can expect to pay anywhere from $30 to $100 for a new bottom bracket.
How do I know if my bottom bracket is damaged?
If you’re not sure whether or not your bottom bracket is damaged, you can take it to a bike shop and they can inspect it for you.
How often should I replace my bottom bracket?
It depends on how often you ride and how well you maintain your bike, but generally speaking, you should replace your bottom bracket every 2 to 3 years.
What are the symptoms of a bad bottom bracket?
There are a few symptoms that can indicate a bad bottom bracket, such as creaking noises, premature wear of the crankset or chainrings, and play in the crank arms.
