How to Replace the Headlight Trim Ring on a Low Rider ST FXLRS(T)​​

2026-01-03

Replacing the headlight trim ring on a Harley-Davidson Low Rider ST (model codes FXLRS and FXLST) is a straightforward, low-cost modification that can dramatically refresh the motorcycle's front-end appearance, protect the headlight lens, and is a perfect project for owners of all skill levels. This comprehensive guide will provide you with the exact steps, necessary tools, and professional tips to successfully complete this task, ensuring a perfect fit and a factory-quality finish.

The headlight trim ring, also called a headlight bezel or surround, is the circular metal component that frames the headlight bucket and lens on your Low Rider ST. While the stock black or brushed finish is stylish, many riders seek to customize this piece with a different color—such as gloss black, chrome, or color-matched to the tank—to add a personal touch. Beyond aesthetics, a new trim ring can also replace one that has become scratched, dented, or faded from road wear and UV exposure. ​The most critical aspect of this job is patience and the correct sequence of removal to avoid damaging the delicate mounting tabs on the ring or the headlight assembly itself.​​ You do not need to remove the entire headlight from the motorcycle, making this a relatively quick and satisfying project.

Before you begin, you must gather the correct tools and parts. Having everything on hand will make the process seamless. For this task, you will need a replacement headlight trim ring specifically designed for the ​Harley-Davidson Low Rider ST (FXLRS/FXLST) model years 2022 and onward. Do not assume trim rings from earlier Softail models will fit, as the headlight housing design is different. Always purchase from reputable vendors, whether it's a genuine Harley-Davidson part or a high-quality aftermarket equivalent. The essential tools are simple: a set of ​T-handle Torx drivers or a socket set with Torx bits (primarily T-27 and T-20 sizes)​, a clean microfiber cloth, and a soft workspace like a towel or mat to place parts on. Optional but helpful tools include a plastic pry tool or trim removal tool to gently assist in prying the old ring off.

Safety and preparation are paramount.​​ Park your motorcycle on a level surface, ensure it is stable on its kickstand, and turn the ignition off. It is highly recommended to disconnect the negative terminal of the battery as a precaution, as you will be working near the headlight wiring. Allow the headlight lens to cool completely if the bike has been ridden recently. Take a moment to clean the general area around the headlight with a damp cloth to prevent any dirt from falling into the headlight bucket during the procedure.

Now, follow these steps in order for a successful removal and installation.

Step 1: Accessing the Trim Ring Mounting Screws
The trim ring is held in place by several small screws around its circumference. On the Low Rider ST, some of these screws are easily visible, while others are concealed behind the front fairing's wind deflectors (the small, painted panels on either side of the headlight). Start by carefully removing the two outer fairing deflectors. Locate the single ​T-20 Torx screw​ at the bottom of each deflector. Loosen and remove this screw. Once the screw is out, gently pull the bottom of the deflector outward from the fairing, then slide it downward to disengage the top mounting tab. Place the deflector and its screw in a safe spot. With the deflectors removed, you will now have clear access to all the trim ring screws.

Step 2: Removing the Old Trim Ring
Examine the exposed trim ring. You will see multiple ​T-27 Torx screws​ spaced evenly around its perimeter. Using your T-27 driver, carefully loosen and remove all of these screws. ​It is crucial to keep track of these screws; placing them in a small container or magnet tray is advisable.​​ Once all screws are removed, the trim ring should be loose but may still be held snugly by its fit and any potential weather sealing. Do not force it. Starting at the bottom, gently work your fingertips behind the ring and ease it outward. If it is stubborn, you can carefully use a plastic pry tool at the bottom edge, but avoid using metal tools that can mar the paint on the headlight bucket or the ring itself. Pull the ring straight out and away from the headlight.

Step 3: Inspecting and Preparing for Installation
With the old trim ring removed, take this opportunity to inspect the headlight lens and the bucket's sealing surface. Wipe the lens thoroughly with a clean, dry microfiber cloth. Check the rubber gasket or sealing channel on the headlight bucket (where the trim ring mates) for any debris, tears, or deterioration. Clean this area as well. Now, unpack your new trim ring. Compare it directly with the old one to confirm the screw holes align perfectly and the shape is identical. If your new ring has a protective film, leave it on until the very end to prevent scratches during handling.

Step 4: Installing the New Headlight Trim Ring
Alignment is key here. Hold the new trim ring up to the headlight bucket, making sure it is oriented correctly (most are symmetrical, but it's good to check). Start by engaging the top part of the ring into the channel or behind the lip at the 12 o'clock position of the headlight bucket. Then, gently press the ring around its circumference until it is fully seated. You should hear and feel soft clicks as the mounting tabs or lip snaps into place. Do not apply excessive force. Once the ring is fully seated and looks even around the entire headlight, begin re-installing the ​T-27 Torx screws. ​Hand-tighten each screw in a criss-cross or star pattern, just like tightening lug nuts on a car wheel.​​ This ensures even pressure and prevents warping or misalignment. Tighten the screws until they are snug, but be extremely careful not to over-torque them, as you could strip the relatively soft threads in the headlight bucket plastic. A firm, gentle pressure is sufficient.

Step 5: Reassembling the Fairing Deflectors
The final step is to put the motorcycle back to its original state. Retrieve the two fairing deflectors. For each one, align the top mounting tab with its slot in the fairing and push it into place. Then, pivot the bottom of the deflector inward until its hole lines up with the mounting point. Reinsert the ​T-20 Torx screw​ at the bottom and tighten it snugly. Repeat for the other side. Give the entire assembly a visual once-over to ensure all screws are in, the trim ring is flush everywhere, and the deflectors are securely attached.

Common Issues and Professional Tips
Even on a simple job, small issues can arise. If your ​new trim ring does not sit flush, double-check that the old ring's gasket isn't still stuck in the channel, preventing full seating. Also, ensure no wiring harness is caught behind the ring. If a ​screw feels like it's spinning and not tightening, it may have been stripped. Do not force it. Back it out and, if necessary, you may need to use a slightly larger screw or a plastic anchor designed for automotive trim—though this is rare with proper technique. ​The most common mistake is cross-threading the screws during installation.​​ Always start each screw by turning it counter-clockwise until you feel a slight "click" as the threads engage, then proceed to tighten clockwise.

After installation, reconnect the battery (if you disconnected it). Turn on the ignition and test all lighting functions: low beam, high beam, and passing light. This verifies that no wires were pinched or disturbed during the process. The final step is to remove any protective film from your new trim ring and give it a final polish with a clean microfiber cloth.

Choosing the right replacement part is a key decision. ​Genuine Harley-Davidson Motor Parts (HD)​​ offer guaranteed fit and finish, often coming with the correct hardware and any necessary gaskets. Aftermarket options from established brands like Arlen Ness, Kuryakyn, or Custom Dynamics provide a vast array of styles, including intricate billet designs, colored anodized finishes, or even units with integrated LED accent lights. Whichever route you choose, verifying model-specific fitment is non-negotiable. A properly installed, high-quality headlight trim ring not only personalizes your Low Rider ST but also serves as a protective detail that completes the front-end's look. This project demonstrates how a minimal investment of time and money, coupled with careful attention to detail, can yield significant visual rewards on your motorcycle.