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works as advertised. but some helmets come with the light and you have to buy the rf unit. the price is kind of high for something like this. but for the safety aspect, it cant be beat
September 14, 2015
Great added visibility
When looking at the GMax 78 Helmet I thought it would be better to have the light working with the brakes. I felt like just having the light on, would increase visibility, but could be potentially distracting and people might then ignore the actual brake light, so this added some peace of mind for me.
It was very easy to install on my GS500 by simply popping off the seat. I tried to find a wiring diagram to tell me which wire was which (+/-) I ended up unhooking a connector and using trial and error while sticking the wire ends of the transmitter into the female connections that lead back to the bike and tapping the brake to look for the light to come on.
I tucked the transmitter box beside the brake wires and it was able to slip it under a zip tie that held the brake wires close to the frame so it won't be knocking around when I'm riding.
During daytime it's not as noticeable but I think it is still an excellent improvement.
May 4, 2015
Very easy installation
The vents next to the LED are tricky to get off. Unsnap them from the bottom, then the top, then slide away from the LED. The wiring clips for the transmitter work, but they're pretty cheap. Might be worth getting some decent ones from a hardware store. As long as you have a wiring diagram to determine which wires are positive and negative to the brake light, it's super easy to install.
September 5, 2014
I have not used this on the road yet but I'm looking forward to the added safety it will provide this riding season. My husband and my father-in-law also bought one each for their Victory's. We have tested them and are pleased with how they work. Installation into the helmet was easy. The bike a bit more complex for my Harley.
April 16, 2013
I purchased the GMAX GM78 Firestarter helmet and this light kit at the same time.
I was a bit nervous to start tearing into a brand new helmet to install the kit, but I took my time and used care not to damage anything while installing the kit.
Installation wasn't difficult. Took me about an hour from start to finish.
It's been working flawlessly for about 3 weeks with no issues. My only complaint is with the clips that hold the clear plastic light cover on; they don't really snap too firmly in place. It's never come loose, but I still don't trust it.
January 28, 2013
Have a functionality, fit, or otherwise product-specific question about the GMax GM54 / GM67 / GM78 Wireless LED Brake Light Kit? Ask it here!
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Stephen M: Liked the idea of a flashing light and brake light on my helmet for safetyJul 20, 2015
Robert M: It was too hard to pass on the cool factor to go with the new GM78 helmet I ordered.Apr 25, 2015
Matthew H: For extra visibility for my wife on her scooter.Mar 4, 2015
Gilbert M: Love the Helmet that this works on, and the fact that this adds visibility to me. I also like the fact that the light can be activated when brakes are applied. Ride Safe, Arrive Alive!!Sep 4, 2014
Al K asked:Hi, does anyone know if you can have two transmitters and pair it to one helmet light? In other words, if I have two bikes, can I put a different transmitter in each bike but only use one helmet and light for both bikes? Thanks!Mar 5, 2015
Christopher K:The LED replaces the one that comes in the helmet. It adds an extra button press for brake light. The transmitter splices into the two wires that go to the brake light bulb/filament. (A schematic is handy.) The module is the size of a large relay, and it can go anywhere it'll fit. There was room under my pillion seat for mine, with easy access to the brake light wiring there. But I'm sure you could add length to the wires and put the transmitter somewhere else.Dec 17, 2014