Trusted by Riders for Nearly 25 Years.
Delivering premium lighting designed for maximum performance, simple installation, and years of dependable riding.
Trusted by Riders for Nearly 25 Years.
Delivering premium lighting designed for maximum performance, simple installation, and years of dependable riding.
Select your ride! Suggested fitment for U.S. models only.
CD-STS-RSGST
Fitment for U.S. models only, unless otherwise noted.
We're happy to help.
For the first time, US model rear 1157 turn signals can be upgraded to increase visibility with eye-catching Dual Color LEDs on 2018-2024 Harley-Davidson® Softail models. Using a patent pending technology, these plug and play LED clusters offer 48 LEDs which illuminate Red as a running and brake light, then switch to blink Amber as a full-contrast turn signal. Units are DOT/SAE compliant and include smoked turn signal lenses with watertight gaskets.
Required SMART Turn Signal module is included with plug and play installation under the seat and applies choice of 10 optional brake flash/strobe patterns to the LED turn signals.
Custom Dynamics® smoked (included) or clear deuce-style motorcycle turn signal lenses required for proper installation and DOT/SAE compliance; OEM lenses and ProBEAM Bullet Bezels are not compatible.
Warning: Cancer & Reproductive Harm — www.p65warnings.ca.gov
2018-2024 Harley-Davidson® Softail Street Bob (FXBB/FXBBS), Fat Boy (FLFB/FLFBS), Softail Standard (FXST), Breakout (FXBR/FXSB/FXSR), 2018-2023 Fat Bob (FXFB/FXFBS) and Slim (FLSL). Does not fit International or Canadian models.
Custom Dynamics® smoked (included) or clear deuce-style motorcycle turn signal lenses required for proper installation and DOT/SAE compliance; OEM lenses and ProBEAM Bullet Bezels are not compatible.

| Type | Year | Make | Model |
|---|
I wish the instructions were bike specific but I understand why that would be a lot. It wasn't hard to figure out and I accidentally got the left and right signals correct on the first try. I had to calibrate the system (as per the instructions) to get the warning lights to work. The whole thing took 10 minutes and I was taking my time. Super bright and I love the strobe. No more cars riding my fender.
Installed on New Harley Fat Boy. These lights will get their attention behind you the way they flash when you break.
Hands down Custom Dynamics SMART Turn Signals are the brightest 2 inch bullet turn signal cluster I have ever used. I have tried different company's and by far Custom Dynamics are the brightest fast shipping and easy to install if I was you I would not hesitate to purchase.
Are you sure?
You have not selected any vehicles.
Use the selector to add vehicles to your garage.