Cracked Head Tube Bike (Things You Must Know)

Cracked Head Tube Bike

Bike frames are highly resilient, as they are made of metals to help them withstand stress, mass, and the type of terrain.

But no matter the metals used to make these frames, they can still crack. 

The head tube is the most critical part of the frames because they connect the crossbar, down tube, and fork (the region that experiences the highest force and stress). Cracks can reduce functionality, but there are precautions to stop them, as there are solutions too.

How to Fix a Cracked  Head Tube Bike

Cracked Head Tube Bike

Can a cracked head tube bike be fixed? Yes, it can. You can repair a cracked head tube in two ways.

First, it can be welded or done without welding. You can choose the one that best suits your personality.

#1. Non-welded 

The first thing to do in this method is to remove any tapes or accessories on the head tube.

Next, scrape off all the paint to see the length of the crack. Get a drill and drill a hole in the base of the crack to prevent the damage from going further.

Get a strong clamp or a steel ring. Measure the diameter of the head tube and the ring.

Make sure the ring is a few diameters longer than the head tube. Put the clamp or ring steel on the head tube and screw. Do not screw very tight.

Put a transparent tape on the hole you’ve drilled to aid you in inspecting it from time to time.

Note that this method cannot totally keep your bike in good shape, so try to inspect your bike before and after use.

#2. Welded

The first thing to do is to get rid of the tape or accessories you might have added to the bike.

A small round hole should be drilled at or slightly behold the visible crack tip.

Then weld round warning: do not use this method if you are not a professional.

Take your bike to a professional to help you weld) After both methods, you can spray the head tube with your desired color.

Reasons Why a Head Tube Bike Cracked

A problem well stated is half solved, according to Charles Kettering. They know why a head tube cracks and can prevent it from cracking.

Excessive stress on the head tube, the bike’s age, and the head tube’s diameter compared to the headset can cause cracks.

Using a bike for a long time for activities like stunts on rocky or hilly terrain will cause stress that can crack the head tube.

Unfortunately, the mountain bike is the highest sufferer of this kind of crack. Age is the most common factor that can cause a bike tube to crack.

The older the bike, the older the metal used in making the frame, and the weaker the metal becomes. Thus the more fragile it is to cracking.

The diameter of the head tube can either reduce or increase the stress or force the head tube will get.

If the tube walls are too thin, the headset fit will be too tight, leaving limited space for lubrication. Therefore cracks can occur.

Take your bike to a technician if you cannot assemble it yourself. Faulty installation of headsets from DIY attempts can cause crack issues.

Every bike has a maximum amount of weight it can carry. The user guide always tells you the maximum weight your bike can take. Try not to exceed this weight.

Is It Safe to Ride a Bike with a Cracked Head Tube?

The answer is NO. Do not for any reason ride a bike with a cracked head tube.

Of all the mechanical faults on a bicycle, nothing can be more dangerous than a broken or cracked head tube. It can cause catastrophic injuries that are head or spine-related.

Whether you ride a bike for recreation, transportation, or sports, the reality of using a bicycle is that you face many risks every time you ride.

These accidents can result from different factors that can be driver-related, mechanical faults, or by fellow road users, etc.

Therefore, the aim is to know these causes and minimize any accidents.

Various reasons cause bike accidents, but the most common are distracted driving, speeding, and running a traffic light or stop sign.

In addition, these mechanical failures can result from faulty bicycle parts, etc. Although you cannot avoid accidents from happening, some precautions can reduce the percentage of accidents. Check table 1 for some protection.

Driver-relatedObey traffic rules and regulations. Always wear a helmet. Always try to avoid distractions while riding
Mechanical failuresDouble-check before  hitting the roadInspect the bike for cracks or parts that can be wearing out and change themLubricate properly before use
Fellow road user’s faultsMake sure you check for oncoming cyclists before you open your vehicle door. Traffigate before a turn or band obey traffic rules and regulations

#1. Preventing Cycling Accidents

Knee, head, wrist, neck, and head injuries are the most common injuries incurred by bicycle accidents.

However, head injury is the most common cause of death, severe disabilities, and cognitive, physical, or behavioral impairments, causing up to 60% of all deaths recorded from bike accidents. 

And guess what? Mechanical faults, cracks, or worn-out parts (especially the ones at the front) are the leading causes of these accidents.

You can minimize these injuries by following the precautions in the table above and other safeguards that can come with the user manual. 

How Do I Know If My Bike Head Tube Is Cracked?

Inspecting a bike might be what seems like a daunting task, but yeah, a daunting task to save a life is something worthwhile. So how do I know if my bike head tube is no longer good?

Closely check the frame (head tube) for cracks; some cracks are hard to see while others are evident.

Check for imperfections on the painting finish using a flashlight, or I’ll advise you to do this in a well-lit area.

Check the bottom, top, and sides of the head tube carefully. You can do this manually or by the use of an ultrasonic sound.

The ultrasonic sound method is the most suitable method for testing.

This method can make cracks visible and is stress-free and non-destructive, even though it will cost you a few bucks.

However, an inspection and repair will cost you well over $100. If you are willing to pay for these services, you must book an appointment with your favorite bike repairer.

If you don’t have money to use an ultrasound scan, you can use a more manageable and pocket-friendly method called the quarter tap test.

First, remove any tape on the bike. Next, take a coin(it can be any coin) and tap around the head tube from top to bottom. Tap gently and listen attentively for a change in sound. 

Frames without cracks will produce a dull sound when tapped; any sound other than that needs a thorough inspection.

Check the Mountain bike frames thoroughly. Although, since they are in rugged terrains, you need to take your time to check, don’t rush because this can lead to possible injury. 


Bike frames are resilient. Nonetheless, they can crack. Try to inspect your bike before and after use, even with the solutions provided.

If a crack seems beyond repair, please visit the company if the warranty still counts, but if it doesn’t, change the head tube.

Josh Matthews

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