How to Fix Cracked Dirt Bike Plastics

If you’ve ever been riding your dirt bike and hit a big bump, only to have your plastic fork or fender break off, you know the importance of having a good repair kit on hand.

In this article, we’ll show you how to fix cracked dirt bike plastics using a few simple tools and some elbow grease. So if you’re heading out for a weekend ride and don’t want to worry about your bike breaking down, read on!

How to Fix Cracked Dirt Bike Plastics

Summary: If you have a cracked dirt bike plastic, there are a few things you can do to fix it. First, use a pry bar to lift the plastic off of the frame. Next, use a sandpaper disk to lightly sand the plastic until it is smooth. Finally, use a clear coat of paint to seal the plastic.

What Is Dirt Bike Plastics?

For those unfamiliar with dirt bike plastics, they are the protective body panels made of plastic that cover the frame and engine of a dirt bike. They come in various colors and designs, and play an important role in keeping the bike safe from damage.

The bike’s aesthetics are also enhanced by the use of plastics, with many riders taking pride in customizing their bikes with colorful and stylish plastics. While some plastics are made from recycled materials, most dirt bike plastics are made from new polymers.

These polymers are designed to be both strong and lightweight, making them ideal for use on a dirt bike. In addition to being durable, polymers are also resistant to chemicals and UV light, meaning that they won’t fade or become brittle over time. The main advantage of using polymers in dirt bike fenders is that they are significantly cheaper than their metal counterparts. In addition, they are also much lighter, which can help to improve the performance of your dirt bike.

Dirt bike plastics are an essential part of any dirt bike, and they play a vital role in both the function and the appearance of the bike.

Why It’s Important to Fix Cracked Dirt Bike Plastics?

Dirt bike plastics are important because they help protect the rider from things like debris and bad weather. They also help keep the engine and other parts of the bike clean. But over time, the plastics can get cracked and damaged.

If you have a crack in your plastic, it could cause water and dirt to get into your engine and make it corrode or wear out faster. Also, the crack could create a weak spot that could break easily if you drop it.

Cracks Can Create Weak Spots

As a result, it is important to fix cracked dirt bike plastics as soon as possible. By doing so, you can help extend the life of your bike and keep it running smoothly for years to come.

How to Fix Cracked Dirt Bike Plastics Step by Step Guide

Step 1: Gather the Supplies

Gather the supplies you need to fix your cracked dirt bike plastics. This includes a tube of epoxy, a putty knife, a sheet of sandpaper, and a clean rag.

Step 2: Use a Sandpaper

If the crack is small, you can use sandpaper to make it less visible. First, clean the area around the crack with a damp cloth. Then, using fine-grit sandpaper, gently sand around the crack. Finally, wipe away any dust with a clean cloth.

Step 3: Use a Heat Gun

If the crack is deeper, you may need a heat gun. Applying heat will allow you to better control the repair by shrinking the plastic and making the area less brittle. Use low heat and move the gun back and forth over the crack until it becomes pliable.

Step 4: Use Epoxy or Super Glue

Once the plastic is warm, you can apply epoxy or super glue to the crack. Be sure to use a generous amount, and spread it evenly over the crack. Then, hold the two pieces of plastic together until the glue dries. This usually takes about 24 hours.

Hold the Two Pieces of Plastic Together

If you’re using super glue, you may need a clamp to hold the plastic together while the glue dries.

Step 5: Apply Heat Again

After the glue has dried, use the heat gun again to melt the plastic around the repair. This will help blend the repair area with the rest of the plastic. Be careful not to overheat the plastic, as this can cause it to warp.

Step 6: Polish the Area

Once the area is cool, you can polish it with a compound to make the repair less visible. First, apply a small amount of compound to the area and rub it in with a clean cloth. Then, use a buffing pad to polish the area until it shines.

Step 7: Apply Clear Coat

Once you are happy with the repair, you can apply a clear coat to help protect it from the elements. You can find clear coats specifically for plastics at your local hardware store. Apply the clear coat according to the manufacturer’s instructions, and allow it to dry completely.

Step 8: Take It to A Professional(Optional)

If the crack is large or not confident in your repair skills, it is best to take the dirt bike to a professional. They will have the tools and experience necessary to fix the damage properly.

And there you have it! A step-by-step guide on how to fix cracked dirt bike plastics. Remember, be careful when using a heat gun, and always let the repair area cool completely before riding your bike.

Always Let the Repair Area Cool

How to Identify a Crack in Your Dirt Bike Plastics

Most dirt bike plastics are made from high-impact polypropylene or ABS. These materials are tough and can take a lot of abuse, but they’re not indestructible. Over time, they can become cracked or broken.

Fortunately, it’s usually pretty easy to tell if your plastics have suffered damage. Here are a few things to look for:

  • Cracks in the plastic bodywork or frame.
  • Broken mounts or brackets.
  • Missing bolts or fasteners.
  • Exposed wires or cables.
  • loose components that rattle around when you ride.

If you notice any of these signs, it’s important to take action. Damaged plastics can impact the performance of your bike and put you at risk of injury in the event of a crash.

So, if you suspect that your plastics are damaged, be sure to inspect them carefully and replace any parts that show signs of wear or damage.

Frequently Asked Question

Can Super Glue Fix Broken Plastic?

Super glue is a great option for fixing broken plastic. It dries quickly and forms a strong bond. However, it is important to make sure that the surfaces are clean and dry before you start gluing. If the surfaces are not properly prepared, the glue will not adhere correctly, and the fix will not be permanent.

Does Jb Weld Work on Plastic?

Yes, JB Weld will work on plastic. It is a two-part epoxy that can be used to fix various things, including metal, plastic, and glass. It dries clear and is often used for home repairs.


All in all, repairing your dirt bike plastics can be a relatively easy process as long as you have the right tools and materials. By following these simple steps, you can get your bike looking and running like new again in no time! Thanks for reading our post about how to fix cracked dirt bike plastics.

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