What Are BMX Frames Made Out of? (4 Options Explained!)
One thing to consider when purchasing an entirely new BMX bike or any other bicycle will be the frame. However, do you frequently think, “what is the material that BMX frames made of?
The most popular BMX frame because it’s affordable. However, due to its weight, many frame makers choose Aluminum for entry-level BMX bikes and carbon fiber for top-of-the-line BMX bikes. However, a handful of top-of-the-line BMX bikes are made of titanium.
What material to choose? We’ll look at the four most popular BMX frame materials and discuss their advantages and disadvantages to assist you in making a better choice.
Are you considering making your own “custom’ BMX frame? In addition, I’ll provide some tips about the steps you need to take to achieve this. In addition, I’ll be able to answer concerns regarding BMX frames and materials.
Let’s get started!
What are BMX Frames made From?
As previously mentioned, BMX bike frames are constructed from these frame materials kinds:
Let’s talk about the various types of BMX frames:
a) Steel BMX Frames
For more than 100 years, steel was the primary material used for bicycle frames. In the late 1990s, the introduction of chrome and aluminum alloys became popular.
Steel is renowned for its durability and strength despite its weight. It’s also easy to fix. Like AluminumAluminum, steel can withstand the force of a landing following a spectacular leap. In addition, it doesn’t get damaged as quickly.
Steel is still a popular choice in BMX with all these outstanding properties. Unfortunately, the frames are susceptible to rust and require painting or coating, except for stainless steel.
Generally speaking, steel is available in three distinct types, which comprise:
- Carbon steel (high-tensile steel)
- Chromoly steel
- 1020 steel
Let’s talk about them in the following paragraphs:
b) Carbon Steel
Commonly referred to as high-tensile or high-tensile, carbon steel is commonly found in children and entry-level BMX bikes. Professional BMX riders don’t like the carbon steel frame because it’s heavy and, therefore, not ideal for stunts or midair jumps.
But BMX bikes with these frames are stronger, more durable, and more durable. You can count on the fact that they’ll last for an extended period.
c) Chromoly Steel
Often referred to as the 4230 steel, Chromoly steel is lighter than carbon steel and has an excellent strength-to-weight ratio.
While Chromoly steel frames are heavier but more responsive, and even after years of use, they will remain indestructible.
d) 1020 steel
1020 steel is a different affordable steel commonly used in BMX bikes. These frames are very popular with novice riders of BMX bikes and are considered low-cost.
Other BMX frames are made up of Chromoly steel and 1020 steel. Bikes made of the two alloys are lighter and more durable.
The advantages of Steel Frames for BMX
- Durable and sturdy
- Most affordable
- Available for immediate use
- Repairable if damaged
- The most comfortable
Advantages of Steel BMX Frame
- More powerful than the rest
- This makes the bike go slower.
Aluminum BMX Frames
There are likely to be bikes with aluminum frames in the mid-range or budget price ranges. They are not only cheap, but they’re incredibly lightweight and strong.
The way AluminumAluminum is used that is used in this cycle has called alloy form. This means that it is mixed in with specific elements to modify its physical properties because raw AluminumAluminum itself is too soft to mold into a frame for a bicycle.
There will be two main aluminum frames that have codes 7005 and 6061. These alloys result from silicon and magnesium added to the aluminum frame, making it more durable.
While aluminum frames aren’t heavy, they are less light than carbon fiber. But don’t give the impression that being light is a disadvantage. They possess the highest strength-to-weight ratio. They are more durable, despite being light.
But, even though aluminum frames are strong, they are still likely to be a victim of road noise and are not the best choice when looking for a BMX race bike.
Aluminum frames are difficult to fix and typically wear out fast.
Since AluminumAluminum is readily available and much more affordable and affordable, it’s a favorite among those on a tight budget.
Advantages of Aluminum Frames for BMX
- They are also affordable
- They are easily accessible
- Have a high strength-to-weight ratio.
- They are light
- They are resistant to corrosion
The cons of aluminum BMX frames
- Their stiffness could lead to an unsatisfactory ride
- Easy to fatigue
- It is difficult to fix after an accident.
Carbon Bike Frames for BMX
Carbon fiber is commonly used as a frame material in top-end BMX bikes. Carbon fiber frames are constructed through the embedding of carbon sheets with resin.
While bikes that have these materials for frames are costly, they offer aerodynamic performance and are more rigid, comfortable, and lighter than AluminumAluminum. That is why professional BMX athletes choose carbon-fiber BMX bikes.
Yet, out of all BMX frames available, carbon is on top of the list because of its highest strength-to-weight ratio.
As great as it sounds, however, some concerns are associated with carbon frames made of fiber. One of them is that you’ll have to dig deep into your pockets to purchase carbon bikes.
Contrary to steel alternatives, These frames can break easily and are very difficult to fix.
Benefits of Carbon Fiber Frames
- High strength-to-weight ratio
- More aerodynamic
- They’re lighter than AluminumAluminum.
- More expensive
Carbon Fiber Frames are not without disadvantages.
- They are more expensive
- They are easy to crash and difficult to fix.
Titanium Frames for BMX
If you’ve been looking for a BMX that will last all your life, choose Titanium frame materials. They can withstand the rigors of BMXing and are more durable and long-lasting.
Titanium has similar characteristics to steel and shares similar properties. The only difference is that titanium’s lighter (weighs the same as frames made of steel) and has a more excellent strength-to-weight ratio than steel, so it isn’t prone to fatigue.
There is an excellent chance to find titanium on custom-made BMX bikes. Because of its unique features, titanium frames are sold with a lifetime warranty that covers the manufacturer’s faults.
However, titanium frames are difficult to come across. This is the reason bikes that have titanium frames are the most expensive.
Similar to AluminumAluminum as well, titanium alloy is a metal made up of various grades. The two most popular types are grade five (6AL4V) alloy, known for its strength and stiffness, and grade nine (3AL 2.5V), which is stronger.
Benefits from Titanium Frame Materials
- It gives you excellent ride quality
- Strong and durable
- Resistant to fatigue
- Resistance to corrosion
- Steel is lighter in comparison
The disadvantages of Titanium Frame Materials
- It isn’t readily accessible
How do you make a Frame for BMX?
We have now looked at the four frame materials used on BMX bicycles. The next question is, what is the best way to make the frame?
Here are the instructions to be followed:
- The first step is to Buy A Sized Tube
The first step is to purchase a properly appropriate size tube that is the right size. When buying it, one important thing to consider is the height of your body.
If you’re not taller than 5’3”, you must purchase a frame tube between 18 and 19 inches. However, if you’re taller than 5’6″, a frame tube of 20-21 inches is the best option.
- Step 2. – Purchase the stem’s front bars and a comfortable headset on the head tube.
- Step 3. 3 – Increase the thickness of the tension points of your tube to alter the frame’s strength-to-weight ratio.
- 4. Step 4: You must weld the tube in an outline shape. This can be done using an industrial welding machine or by hand. This process is among the most challenging and should be done by professionals.
- 5. Finally, you’re ready to paint your bike’s frame. Paint the frame will make it last longer, and it is important not to skip the last step.
People Also Ask
1. Do Raw BMX Frames Rust?
Raw frames don’t have painting or any other coating and therefore are more likely to be rusty. But some alloys won’t rapidly corrode, like titanium, and may serve as raw materials. However, the risk of rust is higher when you own a BMX frame made of steel.
2. What is the best material that can be used for BMX Frames?
BMX bikes are great for midair jumps, stunts, and off-road riding. For a successful experience BMXing, you require frames made of sturdy and durable materials. It is also efficient. This is the case with aluminum and steel frames that are easily accessible and cost-effective.
3. How do I know if My bike is made of steel or AluminumAluminum?
The AluminumAluminum and steel may appear similar, particularly when they are painted. It might not be easy to distinguish them from their appearances. But all you need is an object to differentiate them.
Attach a magnet to your bicycle’s frame. If it is pulled and sticks to the interest, then your bicycle frame is made of steel. If it does not repel, it’s most likely AluminumAluminum.
What is the best steel to make Bike Frames?
The alloy of steel used in most bicycle frames is Chromoly steel, usually the 4130. It is lighter than other steel alloys and won’t wear out as quickly. Carbon steel (high 10 steel) and 1020 steel are also steel alloys to consider.
What’s the reason why Bike Frames are made of AluminumAluminum?
Most BMX bikes are made from made of AluminumAluminum, which is due to the reason. Aluminum is affordable and readily accessible. Additionally, it is stronger, lighter, and more durable, resulting in bikes that last longer.
Are Aluminum Bike Frames Strong?
The fact that aluminum frames are lightweight doesn’t mean that the frames aren’t rigid and fragile. Although steel frames are more durable and strong and last longer than aluminum frames, aluminum frames are comparatively long-lasting. They have a higher strength-to-weight ratio. This makes them more durable.
In conclusion – What are BMX Frames Made Of?
As you can see, BMX frames are made from various materials. While aluminum and steel frames are the most common and easily accessible, carbon and titanium are more expensive and common in high-end BMX bikes.