Cracked Head Tube Bike? (Things You Must Know)

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Most bikes have high-quality frames, while others have frames of medium or inferior quality. Whichever quality of bike you decide to use affects the other components of your bike.

For example, using carbon and titanium road or mountain bike frames will mean that your bike frame would last longer than other frame types. 

However, this does not mean your bike is not liable to cracks. But generally, the head tube is usually a common crack location on bikes. A head tube crack can result from different causes. 

A crack in your head tube can result from hitting your bike against a hard surface, rain, or other harsh weather elements, pressure, age, or improper care of your bike. Depending on the amount of damage, you may be able to fix the crack. However, it is advisable to replace the road bike frame once you notice any fissure.

Why Is There a Crack in Your Bike Head Tube?

If your bicycle is of high quality and material, the probable cause of a crack in your head tube usually depends on the age of your bike.

Other causes include sudden hits from a hard surface, especially on mountain terrains, and exposing your bike to rain, as it could cause corrosion.

In addition, different bike materials have varying stress levels. 

An aluminum road bike frame has lower resistance to stress than other materials.

Because of this weakness, the frame is likely to crack from consistent usage, unlike steel or titanium frame materials.

In addition, alloy bike frames often come with a shorter guarantee, ranging from a three to five-year warranty.

Ensure to check your bike paperwork if it is new, in case you can get a replacement for your bicycle from the guarantee clause.

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Always check your warranty and see if you can get the bike manufacturer to replace your bike or parts if able!

If your road or mountain bike frame cracks earlier than it should, the bike frame is defective. This results from high tensile strain from the headset fitting and additional strains from riding your bike.

It can also result from the width of your bike frame tube walls or a tight-fit headset.

However, once you notice a crack on your bicycle frame, do not ride it until you have repaired or replaced the frame.

The cycle frame holds the other parts of your bicycle and still carries your weight. Therefore, a cracked bike frame is dangerous to use, as it can be a health risk to your well-being.

In addition, a crack in your bike frame may be defective or increasingly develop as you ride the bike, and it absorbs shocks during its usage. 

Frame cracks weaken the bike’s functionality. So, if you keep riding a cracked bike frame, it may fall apart, especially during cornering or when you are going at an intense speed.

This can cause a nasty accident for you and anyone around you. 

After four years, depending on the trail you ride and your frame, replace your aluminum frame. If it is a steel frame, change it after six years, titanium frames after 14 years, and carbon after nine years. These are just rules of thumb. Many bikes can last much longer than this! So just keep an eye on your bike frame as it gets older and regularly check it for any cracks or dents.

Can You Repair a Crack in Your Bike Head Tube?

Repair a Crack in Your Bike Head Tube

Depending on the capacity of the crack, you might repair your bike head tube crack. You can solder your cracked bike frame, though it might be a long and complicated process.

This can take a lot of your time, and you may have to spend a lot on the repairs. After welding the crack, your frame will become heavier, and you will have to be careful while riding.

If the crack in the frame is substantial, you can replace the frame or purchase a new bike. 

However, remember you will need the services of an experienced expert, as the process is quite dangerous. If you weld your bike head tube crack, you will also void your bike warranty.

Also, remember that you are riding a cracked bike frame at your own risk. Below are some tips to take into consideration before welding:

  • Check the crack location. If you have welded the crack location before, it is not advisable to weld on it. The old weld already affected the surrounding area. Adding another is risky for your bike.
  • If the area that has a crack is near the pedal cranks, then it is unsuitable to weld as it is a joint where the manufacturer welded five tubes together.
  • If the crack area is close to the wheel drop-out, do not weld it because the width of the tube at that point is too thin.
  • If the frame crack is on the head tube, welding it will be difficult. The heat from the welding can affect the bearing sets holding the forks. If you weld it wrongly, you might not move your bike’s front wheel.
  • If your welding expert tells you the repair is impossible, heed their advice and get a frame replacement.

It is not so cost-effective to repair your head tube crack as it is likely to damage again after short use.

You can only prevent it from collapsing, though this is not as effective as buying a new road or mountain bike frame.

You can also use a steel ring and place it tightly at the bottom of the head tube. This will help prevent further cracking, though you will have to monitor it closely.

Is It Difficult To Replace Your Bike Frame?

It is not difficult to replace your bike frame, though you might need to follow precise guidelines to replace your frame without encountering problems.

You might also need a solid technical knowledge of your bike specs and compatibility. So the first step to understanding the parts of your bike and their functions is to swap your cracked bike frame.

Another thing to consider is the parts with varying dimensions and standards for different frames. You should also consider the tire size, wheel, and seat post tube diameter.

The wheel dimensions will determine the fork and frame type fit for your bike. The headset bearing measurement is also essential for your replacement to fit.

Measure the outer width and diameter of your old head tube ends and compare them to your replacement.

You should also consider your locking system and the bottom bracket type. The bottom bracket is of two varying types, the Threaded BB and the Press-fit BB.

You can consult your manufacturer to determine which bottom bracket type your bike supports. The new and old frames must have the same bottom bracket type.

Using the wrong bottom bracket type can change your bike drivetrain system.

Although it is better than welding your head tube crack, replacing your old frame with a new one can be expensive. Some factors determine the cost of your replacement.

These factors are the frame material, frame brand, or purchase location. The price can range from $200 to more than $2000.

If you replace your bracket with an old frame, it will be more cost-effective. Some tools you might need for your bike frame replacement include:

Is It Safe To Ride a Cracked Frame?

It is not safe to continue riding your bike if you crack your bike frame. A damaged frame will eventually fall apart if you cycle with it. This is a risk to your health and your life in general.

If you notice any crack on your bike frame, do not ride the bike until you have replaced it or fixed it.


A head tube crack in your road bike frame is often a result of wear, suddenly hitting the bike against a hard surface, and corrosion.

You might have to repair or replace your bike frame to prevent further damage to you and the bicycle. Consult an expert if you plan to weld your bike.