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Custom Dynamics Magic Strobe Brake Light Modulator For Harley
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Custom Dynamics Magic Strobe Brake Light Modulator For Harley

One of the most vulnerable times for a motorcyclist is coming to a screeching halt - is the distracted cell phone user behind you going to see you in time? Increase your odds with Custom Dynamic's brake light modulating device.


  • 10 user-selectable flash/strobe patterns
  • Over-current/thermal/short circuit/reverse wiring protection
  • 84W
  • Works with LED or incandescent bulbs
  • Measures 2 1/4" L x 1 1/4" W x 1/2" H

This Product Fits:
Harley Davidson
Bad Boy FXSTSB 1996, 1997
Cross Bones FLSTSB 2008, 2009, 2010
Dyna Low Rider FXDL/I 19992009
Dyna Super Glide FXD/I 19972010
Dyna Super Glide Sport FXDX 19992005
Dyna Super Glide Sport Touring FXDXT 2001, 2002, 2003
Dyna Wide Glide FXDWG/I 19972011
Electra Glide Classic FLHTC/I 19972013
Electra Glide Standard FLHT/I 19972009
Electra Glide Ultra Classic FLHTCU/I 19972013
Electra Glide Ultra Limited FLHTK 2010, 2011, 2012, 2013
Fat Bob FXDF 2008, 2009, 2010, 2011
Fat Boy FLSTF/I 19962010
Fat Boy Lo FLSTFB 2009, 2010
FXDWG2 2001
FXDWG3 2002
Heritage Softail Classic FLSTC/I 19962010
Heritage Softail FLST/I 2006
Heritage Springer FLSTS/I 19972003
Night Train FXSTB/I 19992009
Road Glide Custom FLTRX 2010, 2011, 2012, 2013
Road Glide FLTR/I 19982009
Road Glide Ultra FLTRU 2011, 2012, 2013
Road King Classic FLHRC/I 19972013
Road King Custom FLHRS/I 19972012
Road King FLHR/I 19972013
Softail Custom FXSTC/I 19961999, 20072010
Softail Custom/Nostalgia/Special/Deluxe FLSTN/I 1996, 20052010
Softail Deuce FXSTD/I 19992007
Softail Springer Classic FLSTSC/I 2005, 2006, 2007
Softail Standard FXST/I 19962010
Sportster 1200 Custom XL1200C 1999, 2000, 2001, 2002, 2003
Sportster 1200 Low XL1200L 1999, 2000, 2001, 2002, 2003
Sportster 883 Custom XL883C 1999, 2000, 2001, 2002, 2003
Sportster 883 Hugger XLH883HUG 1999, 2000, 2001, 2002, 2003
Sportster 883 Roadster XL883R 2002, 2003
Sportster Sport XL1200S 1999
Springer Softail FXSTS/I 19962006
Street Bob FXDB/I 20062011
Street Glide FLHX/I 20062013
Super Glide Custom FXDC/I 20052011
Tri Glide Ultra Classic FLHTCUTG 2009, 2010, 2011, 2012, 2013
XLH1200 1999, 2000, 2001, 2002, 2003
XLH883 1999, 2000, 2001, 2002, 2003
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Custom Dynamics Magic Strobe Brake Light Modulator For Harley 5 5 5 5
This is Great This was so easy to order, receive, and install, even I could do it. When you order from Revzilla they give you the option to check if this item will fit your bike. It did so I ordered. Received it in two days. Great shipping. Came with directions and was very easy to install. Just unplug and plug back inline. Set up how many flashes you want and your good to go. I'm hoping when I apply my brake and my lights flash 7 times the driver behind me will get off their cell phone and take note. September 15, 2014
Strobe Brake lighting is GREAT. The device was exactly as described and was completely plug and play. Hardest part was taking the seat off. As for results the Modulator has several settings. Many fellow riders and car people have commented on how effective the lights are at getting their attention , quickly. They work great with standard lighting and will perform better with LED lighting. August 18, 2014
Better Than Advertised The part was very easy to install.I like the different settings that can be used.Slightly disappointed that only two of them will work with the factory tail light.I guess I will have to upgrade to an LED style to get the full affect. August 4, 2014
This product works as advertised. I received the brake strobe modulator before I expect it to arrive. It took me about 10 minutes to install and it works great. The only reason it took me so long is I had to find a screwdriver to remove the screw that holds the seat on. If there is any cons to the strobe it would be that there are too many choices of strobe patterns that it is hard to decide which one to use, ha ha. It works great and have had several bikers asked me where I got it. Thanks for the great price for the strobe light modulator. May 8, 2014
Easy Install I installed this on my 2009 Fat Bob in about 10 minutes. All you need to do is pull the seat off and plug it inline with the wiring harness that runs to the rear fender. Then set the flashing you want, wire tie it in place and put the seat back on. Now your stops are more noticeable. Love it. January 25, 2014
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Custom Dynamics Magic Strobe Brake Light Modulator For Harley
Already Asked: 6 Questions, 6 Answers
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RevZilla Store asked: Why did you choose this?
Cecil M: As a safety feature. I already use a modulating headlight, and the natural thing to do is modulate the brake light also. This is done automatically, every time. No need to manually do it, especially in an emergency "Quick" stop. Jun 17, 2014
Richard L: I've noticed other bikes with the strobe brake lights and saw how effective they were in making the bike more visible. I knew that I had to have one. I found this one on the Revzilla web site and it was the best price that I seen for it anywhere especially and to make it even better it was free shipping. I'm going to bookmark this site and look here before I go anywhere else. Apr 9, 2014
William M: To make my braking more visible and to keep other drivers alert when i'm stopping. Mar 20, 2014
A shopper asked: will this fit my 2012 Tri Glide Ultra Classic FLHTCUTG???? Jul 9, 2014
Answer this · Send to friends Good question? Yes (0) No (0)
Gary B: I have a 2009 Ultra and it connected as the advertisement suggested. Plug and Play.

The only thing I will do differently is to upgrade to LED.
There are 9 or 10 setting possibilities for flashing.

Without LED you can only access 3 or 4 which is fine.
But I did see this work with an LED set up and strobe capability is really great.

Having said that I set mine on 4 flash pause and 4 flash and works fine.
Jul 10, 2014
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William M: I believe it will. Very easy to connect just plugs right in Jul 10, 2014
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A shopper asked: Are there any other parts required once I purchase this for a 2003 Road Glide? Mar 18, 2014
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Michael H: I installed it on my fat bob with no additional parts. I would suggest using better zip-ties though.. the ones that are provided in the kit are kind of worthless. Other than that, its a plug-n-play-n-ride :) Mar 18, 2014
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PHILIP O asked: Will this fit my 2014 Harley 883 Iron? Aug 4, 2014
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A shopper asked: Will this work on a 2012 Ultra Classic? And is there away you select the strobe pattern, jumps, select switch...? Jul 15, 2014
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A shopper asked: i already have the "plug and play" harness so the turn lights are also brake lights. Will I still be able to use this modulator or use both? Jul 10, 2014
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Product Style RevZilla Item # Manufacturer Product # Availability
Custom Dynamics Magic Strobe Brake Light Modulator For Harley 936021 MAGICSTROBESHD In Stock: Ships within 24 hours