Omar Khalid
The plastic air dam on a Harley-Davidson motorcycle is a small, black plastic component that is mounted under the lower triple tree, designed to deflect air away from the rider's legs in cold weather. It can be removed in warmer weather to allow air to reach the front cylinder and clear out hot air trapped under the tank, improving rider comfort. The air dam is also available as a customisable accessory for Harley Sportster models, with options for different colours and materials such as high-density polyethylene plastic.
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What You'll Learn
- The plastic air dam can be removed for a more comfortable ride in warmer weather
- The plastic air dam can be removed for better airflow in warmer weather
- The plastic air dam can be removed for improved engine cooling
- The plastic air dam can be removed for better aesthetics
- The plastic air dam can be replaced with cheaper alternative materials
The plastic air dam can be removed for a more comfortable ride in warmer weather
The plastic air dam on a Harley-Davidson motorcycle is a small, black, plastic air deflector mounted under the lower triple tree. It is designed to deflect air away from the rider's legs in cold weather. However, removing the air dam in warmer weather can improve riding comfort.
The air dam can be removed to allow air coming over the front fender to clear out hot air trapped under the tank. This can make the ride more enjoyable in hot weather. Harley-Davidson's 2009 service manual suggests removing the air dam in warmer weather for a more comfortable ride.
Removing the air dam can also improve aerodynamics and fuel efficiency. Some riders have reported losing around 1 mpg after removing the air dam, while others have noticed improved airflow and reduced heat around the engine.
The plastic air dam is typically mounted on the outside of the tubes or frame of the motorcycle. It is designed to reduce the amount of wind and debris that hits the rider's legs and upper body, providing a more comfortable riding experience in cold weather.
Removing the air dam in warmer weather can be a straightforward process. Riders can refer to the service manual or seek advice from Harley-Davidson forums and communities for guidance on safely removing and reinstalling the air dam as needed.
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The plastic air dam can be removed for better airflow in warmer weather
The plastic air dam on a Harley-Davidson motorcycle is designed to deflect air away from the rider's legs in cold weather. It is mounted on the triple tree, under the fork, and is barely visible. While it is helpful in winter, it can be removed in warmer weather to improve airflow and make the ride more comfortable.
The air dam is designed to redirect airflow, which can help with aerodynamics and fuel efficiency. However, in warmer weather, removing it can improve airflow to the engine and front cylinder, clearing out any hot air trapped under the tank. This can make the ride more enjoyable for the rider, especially in high temperatures.
Some Harley-Davidson models, such as the Sportster and Dyna, have a front chin spoiler or mudguard air dam as part of their design. These air dams are typically made of plastic and are available as new, unused items in the original packaging. They can be purchased online through retailers like eBay and DK Custom Products.
Removing the air dam can also be a matter of personal preference for the appearance of the motorcycle. Some riders prefer the look of their Harley without the air dam, even if it means a slight decrease in fuel efficiency. Ultimately, the decision to remove the plastic air dam in warmer weather comes down to a combination of improved airflow, rider comfort, and aesthetic considerations.
It is important to note that removing the air dam may have a minor impact on fuel efficiency, as some riders have reported a slight decrease in miles per gallon after removal. Additionally, while it may improve airflow to the engine, it is not expected to cause any significant change in engine performance or temperature, as other factors also influence airflow and cooling.
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The plastic air dam can be removed for improved engine cooling
The plastic air dam on a Harley-Davidson motorcycle is a small, black plastic air deflector mounted under the lower triple tree. It is designed to deflect air away from the rider's legs in cold weather. However, removing the air dam in warmer weather is recommended to improve engine cooling and provide a more comfortable ride.
The air dam blocks the airflow through the holes in the bumper, forcing air up and around the radiator. Removing it allows more air to reach the radiator, which can help with engine cooling, especially in hot weather. This is supported by a service manual from 2009, which suggests removing the air dam in warmer weather.
Some riders have reported that removing the air dam helps clear out hot air trapped under the tank, improving the riding experience. However, others have noted that it may not significantly impact engine cooling. One rider's experience suggests that even without the air dam, there was still a strong blast of air coming through the forks directly onto the engine.
While removing the air dam can have benefits, it is important to consider that it is a part of the cooling system. Without it, some air may be lost, and handling at high speeds could be negatively affected. Therefore, if you plan to remove the plastic air dam on your Harley-Davidson motorcycle, it is essential to carefully consider the potential benefits and drawbacks.
In conclusion, the plastic air dam on a Harley-Davidson motorcycle can be removed to improve engine cooling, especially in warm weather. However, riders should also be aware of the potential impact on handling and airflow management.
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The plastic air dam can be removed for better aesthetics
The plastic air dam on a Harley-Davidson motorcycle is a small, black plastic air deflector mounted under the lower triple tree. It is designed to deflect air away from the rider's legs in cold weather. However, some Harley owners have expressed a preference for removing the air dam for aesthetic reasons, stating that it looks better without it.
Removing the air dam can also improve the riding experience in warm weather. The service manual suggests that removing the air dam in warmer weather can "provide a more comfortable ride for the rider" by allowing the air coming over the front fender to clear out any hot air trapped under the tank. This can be particularly beneficial in regions with high temperatures, such as central Texas, where one rider reported riding with temperatures in the high 90s and low 100s Fahrenheit.
While the air dam can be removed to enhance aesthetics and improve rider comfort in warm weather, it is important to consider the potential impact on aerodynamics and fuel efficiency. Some Harley owners have reported a decrease in miles per gallon (MPG) after removing the air dam, with one owner stating a reduction from 21 MPG to 19 MPG. This decrease in fuel efficiency is attributed to increased drag without the air dam directing air underneath the vehicle.
For those who prefer the look and feel of their Harley without the plastic air dam, there are aftermarket options available, such as the DK Custom Front Chin Spoiler Air Dam Fairing for Harley Sportster. Additionally, some creative Harley enthusiasts have shared their DIY solutions for crafting custom air dams using materials like plastic, steel, and lawn edging. These modifications allow owners to personalize their motorcycles while also addressing any potential aerodynamic concerns.
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The plastic air dam can be replaced with cheaper alternative materials
The plastic air dam on a Harley-Davidson motorcycle is designed to deflect air away from the rider's legs in cold weather. It is mounted on the triple tree, and can be removed in warmer weather to allow air to get to the front cylinder and cool the engine.
While plastic is a common material for air dams, it is certainly not the only option. Air dams can be made from a variety of materials, and plastic air dams can be replaced with cheaper alternatives. Here are some alternative materials that can be used:
- Lawn edging: This is a cheap option, with a 20-foot roll available for around $5. It can be cable-tied to the front bumper. However, it may not be as durable as other materials and may not stand up to off-track excursions.
- Conveyor belt material: This is another inexpensive option that can give a vehicle a "hot look". It can also be used as side skirts.
- Brick/paver edging: This works well for mounting to horizontal surfaces.
- High-density polyethylene plastic: This material comes in a variety of colors and can be pop-riveted to match the plastic.
When replacing an air dam, it is important to consider the functionality of the part. The material chosen should be able to withstand the elements and the rigours of riding a motorcycle. It should also be able to deflect air effectively, providing a comfortable ride for the rider.
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Frequently asked questions
A plastic air dam, also known as a wind deflector, is designed to deflect air away from the rider's legs in winter and can be removed in warmer weather to allow air to cool down the engine.
An air dam directs air underneath a vehicle, reducing drag and improving aerodynamics.
Air dams can be made of plastic, metal, or high-density polyethylene.
You can find plastic air dams for Harley motorcycles on websites like eBay and DK Custom.
