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Delivering premium lighting designed for maximum performance, simple installation, and years of dependable riding.
Seat Bolt Mounted Auxiliary Taillight for M8 Softail
CD-SBTL-18ST-R
Regular price
$99.95
Each
Sale price
$99.95
Each
Regular price
Unit price
per
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Add a bold, race-inspired edge to your 2018-2026 Harley-Davidson® Softail with the new Seat Bolt Mounted LED Running & Brake Light. Designed with an aggressively styled gloss black housing, this compact yet powerful light delivers standout performance and visibility thanks to six high-intensity dual-mode red LEDs. Functioning as both an auxiliary running light and brake light, it enhances your presence on the road for added safety in all riding conditions. Its innovative seat bolt mounting position keeps the light visible even during hard acceleration—making it truly wheelie-proof—while maintaining a clean, integrated look. Installation is quick and hassle-free with the included plug-and-play harness, allowing for easy seat removal without rewiring. Finished off with a durable, corrosion-resistant 12-point gloss black bolt, this upgrade combines form, function, and reliability in one sleek package.
Warning: Cancer & Reproductive Harm — www.p65warnings.ca.gov
Fitment
Fitment
Specifications
Specifications
Instructions
Instructions
J
Fits perfect. Nice and bright. Very easy to install. There should be some sort of written instructions or diagram for those who don’t know how to plug it in.
C
Instructions were a little confusing but a phone call to CD straightened it out. Great result.
T
I have been waiting for this part for months. The closest description for my bike was "M8 Softail". I have a 2026 Super Glide with a 2 up seat. The seat covers the wire well. If I had a 2026 Street Bob with a single seat, I guess the wire will show. The install was easy. Remove seat, look for similar plug, and place the supplied harness into the plug closest to the brake pedal side. The light works great, but it is very, very small. It makes a minor improvement to rear visibility, but it could be slightly taller and 3 times it's width, and it would be much more effective for rear visibility. It's like a toy light compared to the size of the bike and the nearby side markers. I will eventually construct a much more visible tail light and replace this, but for now, it works, and I am tired from waiting, only to be underwhelmed by this itty bitty light.
B
Easy to install and vary noticeable! Great addition to my 26 Fatboy..
J
Love the small size but super bright of this taillight fits in the palm of your hand, and you cant beat Custom Dynamics customer support, it is top notch.