Crash bar guards, often referred to as engine guards or highway bars, are essential accessories for many motorcycle owners. These sturdy metal frames are designed to protect the most vulnerable parts of a bike in the event of a tip-over or a low-speed slide. By providing a physical buffer between the ground and the motorcycle’s engine and bodywork, they can save riders thousands of dollars in repair costs.
Whether you are a new rider learning the ropes or an experienced traveler heading off-road, understanding how crash bar guards work is vital. This guide explains the different types of guards available, their primary benefits, and how to choose the right set for your specific motorcycle.
The Primary Purpose of Crash Bar Guards
The main function of a crash bar guard is to act as a sacrificial barrier. If a motorcycle falls over while parked or during a slow-speed maneuver, the metal bars hit the ground first. This prevents the engine casing, fuel tank, and expensive fairings from making direct contact with the pavement.
Beyond protecting the machine, these guards also provide a layer of safety for the rider. In some tip-over scenarios, the bars keep the heavy weight of the motorcycle from pinning the rider’s leg against the ground. This extra space can make the difference between a minor bruise and a serious injury.
Common Types of Crash Bar Guards
Not all crash bars are designed the same way. Depending on your motorcycle type and riding style, you may encounter several different designs. Choosing the right one depends on which parts of the bike you want to prioritize for protection.
- Engine Guards: These are the most common type and focus specifically on protecting the engine block and side cases. They are usually compact and wrap tightly around the lower half of the motorcycle frame.
- Full-Body Guards: Often seen on adventure (ADV) bikes, these bars extend higher up. They protect the fuel tank and the plastic fairings that surround the radiator and cockpit.
- Highway Bars: Typically found on cruisers, these are wider bars that offer a place for the rider to rest their feet during long trips. While they offer protection, their primary focus is often rider comfort.
- Rear Guards: These protect the back of the bike, specifically the exhaust pipes and panniers (saddlebags). They are most common on heavy touring motorcycles.
Materials and Construction
The durability of a crash bar guard depends heavily on the materials used during manufacturing. Most high-quality guards are made from heavy-duty steel tubing. The thickness of the tube walls, often measured in millimeters, determines how much impact the bar can withstand without bending or snapping.
Stainless steel is a popular choice because it is naturally resistant to rust and corrosion. If the bars get scratched, you can often buff the scratch out without worrying about the metal underneath deteriorating. Mild steel is also common but requires a protective coating, such as powder coating or chrome plating, to prevent rust.
The mounting points are just as important as the bars themselves. Reliable guards attach directly to the motorcycle’s frame rather than the engine block. This ensures that the force of an impact is distributed through the strongest part of the bike’s structure.
Key Benefits of Installing Crash Bars
Investing in crash bar guards offers several practical advantages for any motorcyclist. While the initial cost may seem high, the long-term savings and peace of mind are often worth the price.
1. Financial Protection: A simple tip-over in a driveway can crack an engine cover or dent a fuel tank. Replacing these parts can cost hundreds or even thousands of dollars. Crash bars usually cost significantly less than the parts they protect.
2. Easier Recovery: When a bike is equipped with crash bars, it often rests at a slight angle rather than lying completely flat on the ground. This makes it much easier for a rider to get a grip and lift the motorcycle back into an upright position.
3. Accessory Mounting: Many riders use their crash bars as mounting points for additional gear. You can easily attach auxiliary LED lights, highway pegs, or small waterproof bags to the bars to increase your bike’s utility.
How to Choose the Right Guards for Your Bike
When shopping for crash bar guards, compatibility is the most important factor. Most guards are bike-specific, meaning a set designed for a BMW adventure bike will not fit a Honda cruiser. Always check the manufacturer’s fitment chart to ensure the bars are compatible with your specific year and model.
Consider your riding environment as well. If you mostly ride on paved city streets, a lightweight set of engine guards may be sufficient. However, if you plan on riding off-road or on gravel trails, you should look for heavy-duty bars with multiple mounting points and thicker tubing to handle more aggressive impacts.
Aesthetics also play a role. Many manufacturers offer guards in different finishes, such as matte black or polished chrome. Choosing a finish that matches your bike’s frame or trim will ensure the guards look like an integrated part of the machine rather than an afterthought.
Basic Installation Steps
Most crash bar guards are designed for “bolt-on” installation, meaning you can install them at home with basic tools. While the specific steps vary by model, the general process remains similar across most motorcycles.
- Gather Your Tools: You will typically need a socket set, Allen keys (hex wrenches), and a torque wrench. It is also helpful to have a thread-locking compound to prevent bolts from vibrating loose.
- Identify Mounting Points: Consult the instruction manual to find the specific frame bolts that need to be removed. It is often best to work on one side of the bike at a time to maintain the alignment of the frame.
- Position the Guards: Hold the guard up to the frame and hand-tighten the bolts. This allows you to adjust the positioning before everything is locked down.
- Apply Torque: Once the guards are aligned, use a torque wrench to tighten the bolts to the manufacturer’s specifications. Over-tightening can strip threads, while under-tightening can lead to the bars rattling loose.
- Final Check: After a few miles of riding, check the bolts again to ensure they are still tight. The vibrations of the engine can sometimes cause new hardware to settle.
Maintenance and Care
To ensure your crash bar guards last the lifetime of your motorcycle, they require occasional maintenance. Regularly inspect the bars for signs of rust, especially if you live in a coastal area or ride on salted winter roads. If you notice any chips in the powder coating, touch them up with matching paint to prevent moisture from reaching the metal.
If you are involved in a crash or a tip-over, inspect the bars carefully afterward. If the bars are significantly bent or the mounting tabs are cracked, they should be replaced. A compromised guard may not provide the same level of protection in a second incident.
Conclusion
Crash bar guards are a smart investment for any rider looking to protect their motorcycle and increase their safety on the road. By choosing high-quality materials and ensuring a proper fit, you can safeguard your bike against the high costs of accidental damage. Whether you are navigating tight city traffic or exploring rugged trails, these guards provide the confidence that your machine is prepared for the unexpected.
For more tips on maintaining your vehicle and staying safe on the road, explore our other guides on motorcycle maintenance and essential riding gear.