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Plug-and-play: this permanent system gets you automatic braking with a one-and-done installation. Actuator box installs out of your way under the front seat. Adjustable pressure setting for comfortable braking. Charges car battery while towing.
Features:
Specs:
A braking system is a must when towing a vehicle behind your motorhome. Without it, the weight of the towed car can create a safety hazard, strain your RV's brakes, and affect its the warranty of both your car and motorhome. Most states legally require a supplemental braking system, so if you don't use one and you end up in an accident (which is more likely since your RV takes longer to come to a full stop), your insurance and liability headache just doubled. You also won't have any breakaway system; if there's an accidental disconnect, there's nothing to bring your car to a stop.
The InvisiBrake is a permanent braking system, which means that it's a one-and-done. Once it's installed, there's no more setup that you have to do. When you plug in the power cord at the front of your vehicle, the system automatically turns on. Just like that, you're ready to flat tow.
While the components are installed permanently in your RV and toad, they remain concealed and inconspicuous. None of them will interfere with normal driving, and most of the time they are invisible.
This system will apply the brakes in your toad (towed vehicle) every time you hit the brakes in your RV. It will detect the brake light signal from your motorhome and trigger the system to the settings you pre-programmed.
The braking pressure of the InvisiBrake can be adjusted from 5 psi to 80 psi depending on the weight/size of your toad and your preferences. A higher pressure will brake your car with more force - a good fit for a heavy vehicle - and a lower setting is good for a small vehicle. 60 psi is the recommended default setting, but you can tweak it to suit your individual setup.
The adjustable pressure setting is also an important safety feature for a car with active or continuous-power-assist brakes, such as hybrids. A car with active/continuous-power-assist brakes has pressure in the brake lines even when the ignition is off, so a braking system could apply excessive pressure and potentially cause damage. By lowering the setting (20 psi is recommended), you can use the InvisiBrake with active brakes.
The pressure setting needs to be adjusted only once, during the initial installation, at which point you can test the system at different settings to determine which feels best. Once you have it set, it does not have to be readjusted, so your system is always ready to go.
Most often, the InvisiBrake actuator box installs beneath the driver seat of your toad, neatly tucked out of your way. You can, however, install it anywhere in your car that's convenient for you, such as in the trunk, as long as you can still access the adjustment knob.
A bracket and cable pulley will install on the arm of your vehicle's brake pedal. This will not interfere with normal braking function and does not have to be adjusted or removed. There will be lots of wiring to do as well, with connections made to the battery, breakaway switch, and tail lights. But once it's done, your braking system is always ready to go.
This is a tough installation, with several points that need careful precision to get right. Depending on the vehicle, it can be challenging to find a place to fit the actuator box, and you have to be sure the cable pulley will meet the brake pedal at the right angle to function properly. There's a good chance you'll be pulling up carpeting and removing panels to get the wiring and cable run. Check out one of our installation videos to see if this install is in your comfort zone! Otherwise you can take it to a professional to get it installed.
California residents: click here
Good system. Upgrade wish would be a wireless monitor in my RV cab. Also, had issue with shorted tow bar wiring that messed me up good!
One year later and I still love this system. I did the install myself and use it in a Jeep JKU that I tow behind a truck/cabover camper setup. I like that it is easy to use and out of the way. Nothing to fumble with except for disconnecting at the front bumper. It has worked flawlessly. The one alteration I made was a bracket to cover the gauge/adjustment on the back of the controller- Where it mounted underneath the front seat made it vulnerable to getting kicked by someone in the back seat so I fabricated a small 90 degree bracket to protect it from errant feet. Otherwise it was good to go and the braking on the toed rig couldn't be better.
The braking system and the lights are working, one year after I bought them. However, I am towing a 2016 Keep Patriot, and about 2_500 miles after install, the system started making an annoying clicking noise when I enter the Patriot, which stops after about 10 seconds and then starts up again, usually a minute or so later, for another 10 or 15 seconds. etrailer first said that they had never heard of.such a thing, then said that there are otherwise comments for Keep Patriot owners on forums. Still have no.fix.
Also, at first I did not know that to store the tow bar, it must be pulled up so that the post fitting can moe to the position where it fits into the hole.in the smaii yellow bracket, which works well when used correctly. And store the coiled.wide in your tower vehicle.to prevent corrosion which will interfere with its function.
It wasn't necessarily an etrailer issue, but the item was shipped via USPS and arrived a week later than originally quoted which created a service failure on my end for my customer.
Good quality materials.
Fast delivery
Good price.
Complicated install. 16 hours labor for me to install toad portion, including bulb kit. 8 hours to install indicator light/warning beeper in RV. Worth the one time effort for me to not have to set and remove floor mounted brake system each time I want to drive the toad.
2002 Jeep Grand Cherokee with electric drivers seat. Controller would not fit under drivers seat, installed in cargo area behind rear seat. Good instructions for install.
Kit included everything I needed. Due to controller placement, the controller power leads were not long enough. Air line to air cylinder connection was difficult to get right. Was not as "sure" as air line to controller. Took 3 attempts to get it to not leak.
Overall a good product, I expect it will last a long time and be very reliable.
I installed the InvisiBrake on my 2019 Ford Fiesta SE Hatchback with the great help from my wife. Everything worked fine with the exception of the dash mounted light in the Coach. The light never would illuminate even though the brake was working perfectly. Spent many hours on the phone with Roadmaster tech service personnel. I finally gave up after hours of troubleshooting and installed a Roadmaster Brake Lite Switch. Problem solved, so I thought. Worked well for a couple thousand miles and then it didn't. I bought a new Brake Lite Switch which is yet to be installed.
The InvisiBrake installation on the Fiesta is tricky because the firewall is completely covered with parts and wires. I was able to locate an area where a wiring harness exited and run all wires and vacuum line along side the harness. The InvisiBrake is mounted under the driver seat toward the back. I use a small mirror from the back seat floor to read the dial on the face of the InvisiBrake when I want to check the pressure.
This is NOT easy to install. The place I used to get it installed really had a hard time. Also, my break lights from time to time will stay on. Thats because the hardware that has to be put on the brake pedal weighs so much it pull the pedal down just far enough to turn the brake lights on. I should have bought the Blue Ox braking system. I would not recommend the Roadmaster. Just the additional cost to install is a deal breaker for me.
We used the Roadmaster braking system on our towed Honda CRV when we RVed cross country for 3 months. The ease of operation & not having to worry about setting up a braking system every time we stopped at our various destinations was beyond convenient. I would highly recommend this product.
It is hard to go wrong with "Roadmaster" products
My Invisibrake system works excellent. I t was easy to install for anyone with a little mecanical ability. Love it
Brent
10/14/2024
I am very happy with my roadmaster braking and towing system
Well packaged and complete. Still chasing charging issues but this is a well designed kit!
The installation went as planned. All parts fit and worked the first time.
The product arrived within a reasonable amount of time. Instruction for installation was pretty good between both what came with the kit and the video etrailer web site. For the most part the installation went well but there are a few things I would like to comment on, and they are:
1) The self tapping screws to install the control unit to the floor of my towed vehicle were too short to get through the carpeting and into the sheet metal with enough bite to hold. Instead I used longer 1/4 - 20 bolts.
2) The vacuum check valve came apart while I was pushing it into the brake vacuum line. I was able to not lose the rubber membrane inside and used super glue to put it back together. I tested it and is working fine but I did order another check valve to the tune of [a few extra] more dollars.
3) It would have been nice to have the etrailer video show something on where to hook up the "Monitor System" from the towed vehicle. It took some doing but I was able to locate the brake switch and tap into the cold side for the signal.
Although I haven't put any miles on this system yet my test of it went well.
Rachael H.
9/1/2017
Thanks for the feedback and review Ken. I wanted to let you know that I have included a link to one of our installation videos and at about the 15 minute mark there are some details about installing the monitoring system in the RV.
Helpful Links
Ken K.
9/1/2018
A year later and Im still in love with the Roadmaster tow bar & base plate and InvisiBrake braking system. We just got back from a road trip that started around Seattle down to Bryce canyon and back. The tow bar and brake system worked flawlessly, I could not be more pleased. Also, recently I traded in the first Jeep that I installed this system on for a newer Jeep. Knowing that I would be towing the new Jeep as well, I wanted to uninstall the base plate and brake system from my old Jeep and reinstall them on the new. The process went very well, actually faster than the first time I installed it. So, bottom line is that Im very pleased with this set up and would recommend it highly.
Installed in a 2014 CRV. Worst part was getting all the wiring and under the door sill trim panel and routed up through the firewall into the engine compartment, and getting the cable and pulley installed up to the brake pedal. Pretty crowded under the dash in a CRV (my ribs are still sore)! had to use a different clamp on the vacuum cylinder because I had to move it forward of where the video showed in order for the cable to reach the mounting location under the dash. Had to clamp it around the larger end of the cylinder and the supplied clamp would not fit around the larger diameter end. Maybe Roadmaster has shortened the cable? Haven't tested yet but have high hopes! I used the videos extensively, and couldn't have done it myself without them! Not bad for a 72 year old!
G.d.
8/23/2016
Excellent! Have used it towing my CRV on two 2,ooo mile trips since installation. Works very well
Cable system was a challenge to mount and align properly.
Nice product and simple to install should be easy to use. I installed under the seat of my 99 jeep wrangler
This product was supposed to fit under the seat of my 2022 Chevrolet Colorado. It doesn't even come close. The power seat motors do not allow any room between the seat and the floorboard of the cab. I am returning it "Unused, Uninstalled and in the original packaging. I am being charged return shipping fees. I could understand if I just changed my mind but the product DOES NOT FIT!!! I ordered a replacement air brake unit that will fit. Why am I being charged return shipping for etrailer's mistake in compatability??
Jenny N.
6/14/2023
You are welcome to return this InvisiBrake system however I wanted to let you know that while most of the time the InvisiBrake actuator box installs beneath the front seat of the towed car it does not have to be installed there. It can be installed anywhere in the towed car that is convenient as on as you can still access the adjustment knob.
This review is more for eTrailer than the product RM-8700, which is a great product as well. I will be submitting further reviews as I install the device.
If you want to work with a knowledgeable staff, one that actually listens to your needs and not a company that simply sells a product just to get numbers. Deal with eTrailer.
If your RV has any need these guys know or will find out (as long as its in their area of expertise) and get back to you. They carry great products, they ship as promised and they stand behind what they sell. I highly recommend eTrailer.
Guy V.
8/10/2020
Most excellent products and customer service. I had purchased a few different items from eTrailer and found that there were a couple of missing items. Without question or hesitation, they were in shipping and satisfying my problem. After I got into the project, I found the missing items and notified eTrailer of my error. I cannot say enough good things which describes the excellent customer service, product knowledge and assistance they offer their customers and potential customers.
Just received it, and have not begun to assemble and install. I will have a few questions. The shipping was VERY FAST. The unit looks to be in good shape. ( no damage that I can see) etrailer is a very good place to purchase stuff, and spend money. BECAUSE........You get the best value for your money, and they can answer questions. Tom
Thomas
12/7/2018
This Invisi brake system works GREAT. VERY simple to install if you read the instructions. Still have not seen a better deal than what Etrailer gave me.
It was not too difficult to install if you have basic mechanical and electrical knowledge. After a year owning it and using, I can while heartedly say this is an EXCELLENT PRODUCT. I never had a breakaway to really test it, thank God, but the peace of mind knowing it’s there is tremendous!
Doug S.
4/21/2020
Perfect operation still to this day!
Invisibrake on a 2014 Honda CRV
I’ve been a carpenter all my life and recently finished building a custom car. After Watching the etrailer video (multiple times) it appeared to be a fairly simple installation, not so much, as getting up under the dash is very tight, mounting locations and access points are different and not much working room under dash.
1. It appears the length of the cable and air cylinder are shorter than when the video was made, so an alternate location for the cable clamp is needed. The cable direction needed to be at a 90’ angle to the pedal. . Removing all the carpet and insulation was a PIA to get a direct connection to metal. The cylinder mounted a few inches closer than the video showed and I used two clamps to attach it. The mounting point on the cable clamp ending up being behind the wheel well, so I used a couple of stainless steel bolts for attachment.
2. The hole location into the firewall was very difficult to get to. I was only able to drill a 5/8” hole. I couldn’t get my step bit in there and the brake lines are on the outside and didn’t want to risk damaging them. I just ran the power wires and vacuum line through this hole. I drilled another 3/4” hole in the floor at the back of the cylinder. I ran the plug for brake away and the lighting wires under the body and followed the lighting wires from the back to front. Covering all wires in a plastic loom
3. The plastic molding pieces required some trimming to fit the new wires and cylinder.
4. The video shows the box mounting directly though the removable carpet mat. (Not a good thing) I removed the mat prior to install and will have to modify it to reinstall.
5. All the wiring in the engine compartment and the plug was fairly straight forward and simple.
It all appear to work as it should. Testing seemed to work good.
I recommend making a new installation video.
When I ordered it, the Amazon price was lower and etrailer couldn’t match the pricing. Two weeks later the pricing dropped to match the amazon price ( lower by $150). Sad face..
2014 CRV Baseplate -Roadmaster 521567-5
The installation was fairly simple and the video explained it well. The bumper and grille were fairly difficult to remove and expect to break some of the clips. ( new yellow ones can be purchased on Amazon) . I would wait to replace the grille until all the plug wiring is complete. Just hind site.
2014 Honda CRV Brake switch relay. -Roadmaster 88400
Relay switch are really simple to install, but the location of the brake switch and the small wires made it really difficult.
But it works as it should
Great product. Makes hookup and disconnect a breeze with nothing to store while you drive your toad. The instructions were good, all wire and tube connections were pretty straight forward. Routing wires and vacuum tube was the challenging part for me. Also had to drill a 1.25" pass through hole with grommet in the firewall. The instructions suggested using an existing hole which my vehicle does not have, 2011 Ford Ranger.
It is reliable, your toad battery receives a charge, just plug in and go.
This was part of many Roadmaster components I ordered from etrailer.com to set up my 2014 Honda CRV as a toad. Etrailer's website is excellent and their review videos and installation videos are very helpful. Their tech service department is excellent as well.
Regarding the Roadmaster Invisibrake, I chose this unit because I did not want anything visible nor any connections to make when setting up to tow or disconnecting. The control unit is hidden under the driver's seat and hardware under the door trim panels. I varied slightly from the etrailer's video in where I mounted the locking clamp and pulley (I did not put the clamp on the raised emergency brake bracket because it was slightly out of line to the pulley that was mounted flush on the floor). Because I choose to route the separate lighting kit wiring on the inside of the vehicle... along the same trim panels and rear trim panels, this made a very convenient place to splice into the wiring next to the Invisibrake control box...nice and protected. The alternative locations of splicing into the lighting wiring harness is under the vehicle....not an ideal place because of road salt, grime and pinch points. I also used the lighting kit with separate bulbs to not interfere with the already installed trailer harness kit for the Honda trailer hitch, nor having to deal with diodes.
The Invisibrake works well. I used the extra blue wire in the connecting tow bar wiring harness (7 pin to 6 pin), and the unused brake controller wire in the motorhome that runs to the dash of the motorhome, to operate the signal light. Works great and looks neat.
I would recommend that Roadmaster provide some sort of adjustment of the cable at the air cylinder in future generations of this product if possible. This would help on shortening the distance between the mounting clamp and pulley in cases where there is not much room (like in this Honda). Because the only way of taking up the slack now is the combination of the clamp and pulley locations, it somewhat restricts the options on mounting locations and may make some extra work. Regardless of this suggestion, I like the design and initial quality of the Invisibrake and would recommend this unit to anyone wishing to install a supplemental braking system. This does take some pretty good mechanical skills and body contortions to install but if you have that ability...I recommend this unit to the serious do it yourselfer. Otherwise, have a pro install it.
I do virtually all my own maintenance on all 7 of my vehicles. This installation is not conceptually difficult, but working under the dash of a Jeep Wrangler is literally painful. The hardest part is figuring out where to mount the controller and route the brake cable. My Jeep is not the same as the video and I needed to install it a little differently. Take your time here and get it right the first time.
I made several modifications to the standard installation - including hooking all the signals (including the Monitor) from my truck camper to my towed Jeep through a 7-Pin RV connector and hooking the power to the Invisibrake through a switch to the battery so I don't have to run my Parking Lights to power the controller. I had a couple questions that the folks at Roadmaster answered cheerfully and professionally.
BTW Etrailer is a pleasure to do business with.
The InvisiBrake system vacuum pump was too weak and slow to respond .
I installed an external vacuum pump from Summit Racing which maintains 22"of
vacuum on the brake chamber at all times ,the same as when the Ram engine is
running . I installed an isolation valve on the Ram manifold vacuum line and a
momentary test switch in the Ram to simulate the coach brake lights being on .
That way I can take the Ram for a drive and set up the brakes as they should be.
Do you have a question about this Flat Tow Brake System?
Condition: Installed
Notes: Item has been previously test fitted and has minor cosmetic signs of install.
Condition: Badly Dinged
Notes: The rubber around the cable is damaged and peeling. Otherwise, new and unused. All hardware is included.
Info for this part was:
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Rick H.
4/17/2025
Still the same, works well, though the annoying clicking sound in the Jeep has not gone away. I have to wonder if other Jeep Patriot owners have solved it.