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Roadmaster InvisiBrake Supplemental Braking System

Roadmaster InvisiBrake Supplemental Braking System

Item # RM-8700
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Retail:$1,291.13
Our Price: $989.98
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Tow Bar Braking Systems

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Product Images

In Use/Installed

Customer Photos

Product Expert Mike S

Is this right for you? Product Expert Mike S says:

Yes, if you:

  • Don’t have time to waste setting up a portable system before every trip
  • Want to know when your towed vehicle’s brakes are being applied
  • Want complete control over when your towed vehicle’s brakes activate

No, if you:

  • Drive through the mountains or hilly areas frequently
  • Are typically a DIYer, but don't want to have to deal with a more complicated install
Get automatic, real-time braking in your towed vehicle with the InvisiBrake. Actuator box installs permanently so that you never have to remove, adjust or reactivate. System connects to RV and engages car brakes when the RV brake lights illuminate. Lowest Prices for the best tow bar braking systems from Roadmaster. Roadmaster InvisiBrake Supplemental Braking System part number RM-8700 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
  • All Info
  • Reviews (91)
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Roadmaster Tow Bar Braking Systems - RM-8700

  • Brake Systems
  • Pre-Set System
  • Hydraulic Brakes
  • Roadmaster
  • Fixed System
  • One Time Set-Up
  • Power Assist Brake Compatible

Get automatic, real-time braking in your towed vehicle with the InvisiBrake. Actuator box installs permanently so that you never have to remove, adjust or reactivate. System connects to RV and engages car brakes when the RV brake lights illuminate.


Features:

  • Braking system activates brakes on towed vehicle when you engage the brakes in your RV
    • Cable pulley tugs towed car's brake pedal gently, gradually and with balanced pressure when brakes are applied in RV
  • Permanent installation - nothing to remove or disconnect
    • Actuator box mounts out of the way - typically beneath the driver's seat
  • One-time setup - no need to readjust or continuously activate
    • System automatically functions when connected to RV
    • Braking pressure does not have to be readjusted after initial setup
  • Compatible with hybrids and other continuous-power-assist automobiles
    • Braking pressure can be adjusted from 5 psi to 80 psi so that an appropriate amount is applied
  • No false braking - activates only when RV brake lights are illuminated
  • Integrated battery protection
    • Bypasses 12V outlet - connects directly to towed car's battery and constantly charges battery when you are towing
    • Provides a trickle charge to the vehicle battery if the running lights are on on the tow vehicle
  • 2-Stage motor home monitor has audible and visual warnings
    • LED monitor illuminates when towed car's brakes are activated
    • Audible alert lets you know if brakes have been activated for too long (approximately 20 seconds)
      • System automatically begins to release pressure after 15 seconds of continuous braking
  • Emergency breakaway device included
  • Made in the USA


Specs:

  • Controller box dimensions: 8-3/4" long x 8-3/4" wide x 2-3/4" tall
  • Power draw: 6 mA - 10.8 amps
  • Maximum braking pressure: 80 psi
  • Limited lifetime warranty


Note: This product does not work on vehicles with a non-electric hydroboost braking system.


When using TrailerMate wiring with the InvisiBrake, it will be necessary to purchase an additonal two diodes, (RM-792 - sold separately), to prevent the towed vehicle's brake signal from back-feeding into the InvisiBrake system and activating it when attempting to drive the vehicle.


Fully Automatic Braking Action

Wire the InvisiBrake into your vehicle, connecting it to the battery and electrical harness, and you never have to remove it. When you're ready to tow your car, just connect the it to your RV via the included electrical cable, and the system is ready to go.


The InvisiBrake is designed to activate the brakes in your towed car upon receiving a signal from your RV that the motor home's brakes have been applied. This signal is sent via the wiring harness whenever the RV's brake lights are illuminated. This way, you get real-time braking action, ensuring that your towed car brakes at the same time and for the same duration as the brakes in your RV. In addition, there will be no false braking when you hit bumps or potholes.


Adjustable Pressure Settings

The braking pressure of the InvisiBrake can be adjusted from 5 psi to 80 psi depending on your individual application and preferences. Typically, a braking system has to apply an extreme amount of force to activate the towed car's brakes because the vacuum-assist function of the brakes is not active when the ignition is off. This excessive pressure would cause damage to your car if it had "active" brakes. Because this system lets you adjust the braking pressure to a comparatively minimal amount, you can use it on automobiles that have continuous-power-assist brakes, such as Hummers and hybrids, without having to worry about any potential damage.


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 the setting is determined, it does not have to be readjusted, so your system is always ready to go.


Permanent, Out-of-the-Way Installation

Most often, the InvisiBrake actuator box installs beneath the front seat of your towed car, neatly tucked away so that you won't see it and it won't take up any storage space in your vehicle. You can, however, install it anywhere in your towed car that is convenient for you, 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, removed or activated. The entire system can stay in your car year 'round, waiting for those times when you need to tow. And once you do hook up your car to your RV in preparation for towing, the system will function automatically.



8700 Road Master Invisi-Brake Tow Bar Braking System

Installation Details RM-8700 Installation instructions

This Product Fits The Following Vehicles





Customer Reviews

Roadmaster InvisiBrake Supplemental Braking System - RM-8700

Average Customer Rating:  4.8 out of 5 stars   (91 Customer Reviews)

Get automatic, real-time braking in your towed vehicle with the InvisiBrake. Actuator box installs permanently so that you never have to remove, adjust or reactivate. System connects to RV and engages car brakes when the RV brake lights illuminate.

- RM-8700
by:
2016 Jeep Grand Cherokee

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.


Comments
Checked my review today as posted. I mistakenly marked 3 stars, meant to mark 4. Only negative was the hard to make connection at the air cylinder.Everything else was top notch.
-- comment by: Triplewide - 01/06/2016



- RM-8700
by:
2020 Jeep Gladiator

Challenging install but performs well. Installed under the front seat (not perfect), but is hidden well.



- RM-8700
by:

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.


Comments
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.
Guy L - 08/10/2020


- RM-8700
by:
Jeep Wrangler

Had it installed by my local RV guy on my 2020 Jeep Wrangler Unlimited. Has been in use for 1 year. No issues, love the ease of use. Just plug in and and go no unit to move or adjust. If you are looking at a braking system I would recommend this one.



- RM-8700
by:

Great product but incredibly difficult to install on compact vehicle. Usage: Very simple with no hassle. Installation on 2006 Honda CR-V Manual Transmission: - I have pretty extensive in car stereos, engine work, and body mods - Electrical was pretty easy, expect to cut and solder some wires if you want a clean installation. - Mechanical installation of the pully & cable in the cramped footwell of the CR-V was a major pain. No path up (steering column & stuff). No path to the left (clutch pedal). No path to right (gas pedal). I ended up building a small tunnel and going down. Setup Note: The vacuum saved in the brake booster after engine turn-off may be give a extra push on the first couple brake applications. I set my pressure to my desired travel, then after a couple of brake applications it would barely move at all.



- RM-8700
by:

This breaking system works well. Kind of a pain getting under dash and hooking up the cable. But other than that no complaints. If I was 30 years younger it would have been easier.



- RM-8700
by:

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.



- RM-8700
by:
Jeep

Nice product and simple to install should be easy to use. I installed under the seat of my 99 jeep wrangler



- RM-8700
by:
2011 Chevrolet Equinox

Shipping and delivery was lightning fas t.



- RM-8700
by:
2015 Jeep Wrangler Unlimited

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.


Comments
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.
-- Etrailer Expert Rachael H - 09/01/2017

Comments
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.
Ken K - 09/01/2018



- RM-8700
by:
2014 Honda CR-V

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!


Comments
Excellent! Have used it towing my CRV on two 2,ooo mile trips since installation. Works very well
G.D. - 08/23/2016



- RM-8700
by:
2016 Jeep Wrangler Unlimited

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!


Comments
Perfect operation still to this day!
Doug S - 04/21/2020


- RM-8700
by:

Instructions are easy to follow.I used an experienced technician to install mine.



- RM-8700
by:
2014 Honda CR-V

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.



- RM-8700
by:

Works well. Glad I have it.



- RM-8700
by:
2005 Jeep Wrangler

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


Comments
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.
Thomas - 12/07/2018



- RM-8700
by:
Jeep Wrangler

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.



- RM-8700
by:
2018 Chevrolet Equinox

Ordered arrived in a timely manner. Haven't opened the individual packages yet as I'm waiting for the tow bar to arrive from a different vendor.


Comments
The brake system works very well in our Equinox. Had a couple of operator error issues where there was no signal from the RV to the toad doesnt help when operator doesnt plug cable in fully and it gets dragged on pavement.
Keith - 01/20/2020



- RM-8700
by:

Not near as easy an install as it appears in the instructions. Not very clear where to route the cable and mount the actuator.



- RM-8700
by:
2018 Chevrolet Silverado 3500

Works great we have several of these in our 1 ton pickups we pull behind our water trucks for the water well drilling industry!


Comments
We have ordered and installed several of these systems and they work great. Its good to have a piece of mind knowing you have an extra braking system installed
Rich Q - 01/22/2020



- RM-8700
by:
Ford Five Hundred

First - The product selection, staff, shipping, price match and technical tips and videos available at etrailer are outstanding. The invisibrake is a nice system but installation can be challenging. I installed it in a Fiat 500 and ended up re-engineering some of the parts.



- RM-8700
by:
2017 Chevrolet Equinox

I'am in the process of setting up my 2017 Equinox to tow behind our motorhome. I've placed 4-orders with etrailer. So far I've installed the base plate, the wiring from the rear tail lights to the front end.I also received my Tow bar and the quick release parts. my next project is to install the invisi brake system. I want to send Kudos to Cathy T for her help and her great customer service. I'am also thanking James A for his quick response to a question about the wiring harness. I'am extremely happy with the quality of everything I ordered at etrailer. Thanks



- RM-8700
by:

Works great. Been using it for a year; still like new.



- RM-8700
by:
2016 Ford Edge

Installed in 2016 Ford Edge Titanium. Instruction were easy to follow. If installed in the back of the vehicle wire is not long enough. Had to add an additional 4 ft of cable. Cable with the kit is long enough only if mounting towards front of the vehicle or under driver's seat. Mine did not fit under the seat so I had to put it in cargo area rendering the cable too short, had to add 4 ft of cable. Would have given 5 stars if it wasn't for the cable length issue.



- RM-8700
by:

I've ordered a number of products from etrailer over the past few years. These folks are the most helpful and knowledgeable you'll find. The products arrive as promised and fit the application as promised. You can't go wrong buying from them. When you call, you actually speak with someone that knows the answers to your questions!


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Ask the Experts about this Roadmaster Tow Bar Braking Systems

  • Supplemental Braking System for Towed Vehicle Travelling Steep Hills
    For an application where steeper inclines will be traveled on the Invisi-Brake # RM-8700 would not be my first choice for a supplemental braking system since the braking pressure when you apply the tow vehicle's brakes will always be the same pressure. Instead I'd recommend the DUO part # SM99251 which is a similar type of system but uses an inertia sensor to detect how hard you are applying the tow vehicle brakes and applies a proportionate amount of braking to the towed vehicle's brakes....
    view full answer...
  • Will Roadmaster InvisiBrake Work When Towed Vehicle Engine is Off and Power Brakes are Not Active
    I took a look at the online owner's manual for your 2018 Jeep JL Wrangler Unlimited and it does say to turn your engine off before flat towing. This does make pressing down on the brake pedal much more difficult but supplemental braking systems like the Roadmaster InvisiBrake # RM-8700 are built to accommodate this. If you have tried flat towing your JL and you are experiencing problems then please let me know. However if you just sat in your Jeep with the engine off and tried applying...
    view full answer...
  • Why Isn't Roadmaster InvisiBrake Supplemental Braking System Good For Mountainous Areas
    That's a good question, and the reason the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 is not a very good option if you will be flat towing in mountainous or hilly areas is because it applies the same amount of braking force no matter what. A set amount of braking power is not optimal for mountainous areas with steep inclines and declines because when ascending there will be too much braking power, putting more pressure on your RV and making it more difficult to climb,...
    view full answer...
  • Does 2019 Chevy Equinox Need Charge Cable to Flat Tow With Roadmaster InvisiBrake
    The Roadmaster InvisiBrake Supplemental Braking System # RM-8700 does not have any type of converter, and though we are not familiar with semi truck wiring, I would assume you would still need to use it. The InvisiBrake will also not keep your battery charged so it is recommended you follow Chevy's instructions in regards to a charge cable. The rest of the parts you'll need to flat tow your 2019 Chevy Equinox are: - Base Plate Kit: Roadmaster Direct-Connect Base Plate Kit - Removable...
    view full answer...
  • Compatibility of Mopar 82215382AB Flat Tow Wiring w/ Roadmaster Invisibrake on 2020 Jeep Wrangler
    According to Roadmaster, their # RM--8700 Invisibrake supplemental braking system is fully compatible with the Mopar 82215382AB wiring harness. The wiring harness allows the Jeeps taillights to operate in conjunction with the motorhome's taillights, and would be a separate system that wouldn't have any impact on or affect the operation of the Invisibrake system. You'll also need to use the brake stoplight switch kit, part # RM-751490 in conjunction with the Invisibrake. In addition to...
    view full answer...
  • Tow Bar Wiring and Braking System for Flat Towing 2020 Jeep Gladiator
    Assuming your RV is already equipped with its end of the Roadmaster InvisiBrake System # RM-8700 the Second Vehicle Kit # RM-98700 will work perfectly to equip your Jeep Gladiator with the needed components. In addition to this kit you will also need the Stop Light Switch Kit # RM-751497 to ensure proper operation. I verified this with my contact at Roadmaster. The Brake-Lite Relay Kit # RM-88400 that you mentioned is actually not needed. The Roadmaster Diode Flexo-Coil Wiring Kit...
    view full answer...
  • Will Roadmaster InvisiBrake Braking System Work on 2006 Jeep Wrangler
    Yes, the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 referenced in your question will fit and work well with your 2006 Jeep Wrangler Unlimited. This is a really nice system that will give you real-time braking in the Wrangler. The actuator box installs permanently so there is no need for removal or adjustments as you transition from flat towing to everyday driving with the Jeep (and vice versa). I have attached an installation video on a later model Jeep Wrangler that...
    view full answer...
  • Recommended Toad Towing System for 2018 Jeep Wrangler JL
    Since you already have the Blue Ox baseplates # BX1139, I recommend using the Blue Ox Alpha Tow Bar # BX7380 which comes with the safety cables you need as well as the hitch pin. If you desire more security I also would add the Blue Ox Base-Plate and Receiver Lock Kit - Qty 4 # BX88177 which will give you the hitch pins for your motorhome hitch as well as a high-low adapter and then the pins for your base plate connections. Then for your tow bar wiring I recommend the Roadmaster Diode...
    view full answer...
  • InvisiBrake Flat Tow Setup 2006 Jeep Wrangler
    Part # RM-8700 is a confirmed fit for your 2006 Jeep Wrangler. The InvisiBrake system works with RV's that have air or electric brakes. The InvisiBrake system builds pressure using your vehicles factory brake booster. The InvisiBrake system gets spliced into the diode wiring to tell the system when to turn on. This kit doesn't have an on/off switch, when the diode wiring is plugged into the towing vehicle, it sends the signal to the towed vehicle telling the InvisiBrake when to apply the...
    view full answer...
  • Flat Tow the 2013 Honda CR-V
    The Roadmaster InvisiBrake Supplemental Braking System, # RM-8700 can be installed on your 2013 Honda CR-V to be towed with your motorhome. Provided your motorhome is properly arranged and has the tow capabilities of the Honda's vehicle weight. If you select the Roadmaster Falcon All Terrain, # RM-522, you will need the Roadmaster Crossbar-Style Base Plate Kit, # RM-521567-4. The RoadMaster Falcon 2 and Falcon All-Terrain Combo Towing Kit with Straight Wiring, # RM-9243-1. The Roadmaster...
    view full answer...
  • Does Roadmaster InvisiBrake for 2012 Jeep Wrangler Require Additional Diodes
    Your 2012 Jeep Wrangler will need the Roadmaster Hy-Power Diodes # RM-792 with the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 if your wiring kit is a 2-diode kit like the Tow Ready Tail Light Isolating Diode System # TR118821. We don't carry the Cool Tech wiring and I was unable to find out how many diodes it uses, but put simply if it is a 2-diode system instead of four, then you will need a pair of extra diodes, the Roadmaster Hy-Power Diodes # RM-792. I have also...
    view full answer...
  • Will the Roadmaster InvisiBrake Work On a 2006 Jeep Grand Cherokee
    Yes, the Roadmaster InvisiBrake Supplemental Braking System part # RM-8700 will work on a 2006 Jeep Grand Cherokee (All Models) which I confirmed with my contact at Roadmaster for you. In regards to installation, the best place to install the main control unit is under the driver seat. Please note, the Roadmaster InvisiBrake is for motorhome's with hydraulic brakes. I have attached some other parts you might be interested in below as well. Roadmaster Crossbar-Style Base Plate Kit part...
    view full answer...
  • Can I Monitor The Braking System In The Motorhome When Using The Roadmaster InvisiBrake System?
    Although the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 doesn't have a fancy transmitter/ receiver like the RoadMaster Even Brake System # RM-9430, the InvisiBrake system does have a LED monitor that illuminates when your towed vehicle's brakes have been activated. It lets you know if the brakes have been on for too long with an audible alert. at that point the system will automatically begin to release pressure after 15 seconds of continuous braking. The InvisiBrake system...
    view full answer...
  • Roadmaster InvisiBrake Won't Release Brakes on 2018 Jeep Cherokee
    I reached out to the manufacturer, Roadmaster, in regards to the issues you are having with the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 on your 2018 Jeep Cherokee. What they told me was that "it sounds like whoever did the install forgot to add silicone to the back of the six-way socket for weather proofing. I would ask the customer if it has recently rained or if they took their vehicle through a car wash. If so they will need to empty the water from the backside...
    view full answer...
  • Roadmaster InvisiBrake Battery Charging Capabilities While Flat Towing
    Yes the Roadmaster InvisiBrake Supplemental Braking System Item # RM-8700 will connect directly to your towed vehicle's battery and charge it while driving unlike most braking systems that would actually drain your battery. Some notes to consider on this product are: This product does not work on vehicles with a non-electric hydroboost braking system. When using TrailerMate wiring with the InvisiBrake, it will be necessary to purchase an additonal two diodes, ( item # RM-792 -...
    view full answer...
  • Where to Mount Roadmaster Invisibrake on 2021 GMC Sierra 1500
    We do not yet have any photos of the Roadmaster Invisibrake # RM-8700 mounted in a newer GMC Sierra 1500, but the beauty of this system is that it can be mounted anywhere. On the product page it mentions that the most common installation spot is under the front seat, which is where I recommend installing; you'll only need about 3" since the Invisibrake is only 2-3/4" tall. Under the back seat would be acceptable if you can find a way to fit it in the under seat storage or you can remove...
    view full answer...
  • Installation Video and Instructions for Roadmaster InvisiBrake on 2018 Ford Focus
    Thanks for the purchase and the installation instructions will come with the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 but I have also added a link to them for you here. I have also added a link to a video install we did of this system on a 2014 Ford Focus, which is the same generation as your 2018 Focus.
    view full answer...
  • Roadmaster Invisibrake Installation in 2020 Jeep Glaidator Overland
    Absolutely. The Roadmaster InvisiBrake Supplemental Braking System # RM-8700 typically installs under the driver's seat for easy accessibility but it is not the only place it can be mounted. You can mount it anywhere in your towed vehicle that is convenient for you as long as you can still access the adjustment knob. For example, we have installed that unit under the passenger side seat and in the rear cargo area for customers that preferred those locations. As long as you follow the...
    view full answer...
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  • Do all of the Wires of the Invisi-Brake Need to Be Wired to Install Brake Kit
    Even though you already have a charge wire ran from your RV to your vehicle batter you would still want to run all of the wires to install the part # RM-8700 on your truck. To determine if a brake light relay # RM-88400 is needed to properly wire your vehicle to be towed, answer the following questions. Are you using a supplemental braking system that depresses the brake pedal in your towed car? No - You do not need a brake light relay. Yes - You may need a brake light relay....
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  • Does Roadmaster Invisibrake System RM-8700 Compressor Run Continuously
    In the Roadmaster Invisibrake system # RM-8700 the compressor will run only as much as needed for the air cylinder to reach and then maintain the pressure setting you have selected. That setting depends on the vehicle's brake pressure requirement which varies from vehicle to vehicle.
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  • Will Wiring Technique Be the Same When Transferring Roadmaster InvisiBrake to 2020 Jeep Gladiator
    Yes you can wire the lighting for the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 the same way on your 2020 Jeep Gladiator as you did on your Wrangler. As you can see by the cut out of the linked directions for the InvisiBrake, the wiring technique will be the same for all towed vehicles so you're set! The InvisiBrake is able to be transferred to your new Gladiator but you are going to need the Second Vehicle Kit for Roadmaster InvisiBrake Braking System # RM-98700 to...
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  • Flat Towing A 2018 Mini Cooper Base Model
    Yes you can flat tow a 2018 Mini Cooper 2-door hardtop and below are the parts you would need. Be sure to consult your vehicle owners manual for specific information on flat towing the vehicle. Base plates # RM-521882-4. Compatible tow bar Falcon All-Terrain tow bar # RM-522. Safety cables # RM-645. Lighting solution-diode kit # RM-154. Braking system # BRK2016 You may also need a high/low adapter to keep the tow bar level. I have linked a help article showing how to measure...
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  • Installing the Roadmaster InvisiBrake on a 2016 Ford C-Max
    I am attaching a video of the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 being installed on a 2010 Ford Flex that you can use as a reference for the installation. Due to how involved the installation process is this, along with the attached installation details is, is the most effective video I can recommend for you. Currently (August 2017) we have not have the opportunity to shoot a video of the InvisiBrake being installed on either a 2012 Sonic or a 2016 Ford C-Max like...
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  • Roadmaster Invisbrake #8700 or Blue Ox Patriot II Supplemental Braking Comparison
    The Invisi Brake # RM-8700 and the Blue Ox Patriot II part # BRK2019 are both supplemental brake systems but they are pretty far apart in every other way. The # BRK2016 is a much simpler to install setup that works very well. But you have to install and remove it every time you want to flat tow/drive. For this style though it is the best setup. The Invisibrake requires a one-time in-depth install that will take some time, but once installed it works great. If this is more like what you'd...
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  • Troubleshooting 2018 Ford F-150 Ecoboost 3.6L Roadmaster InvisiBrake Supplemental Braking System
    There is not a separate brake light switch required for your 2018 Ford F-150 and the Roadmaster InvisiBrake System # RM-8700. The only thing that you may not already have that you will need is the Roadmaster Brake-Lite Relay Kit for Towed Vehicles # RM-88400 which keeps your truck's brake signal from overriding the turn signal sent by your RV. I have attached a video that shows this installation on a 2018 Ford F-150. Let me know if this doesn't solve your issue and we can do some troubleshooting...
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  • Where to Mount Invsi-Brake Breakaway Switch on a 2015 Jeep Grand Cherokee
    When we installed the breakaway switch on Jeep Grand Cherokees of the same generation as your 2015 model our installers just attached the switch directly to the bottom of the front license plate housing. I have linked a video showing this. It is a different braking system but the same switch.
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  • Does Negative Battery Cable of 2017 Ford Edge Need to Disconnect When Flat Towing with Charge Wire
    The recommendation for disconnecting the battery of a vehicle when flat towing like on your 2017 Ford Edge is so that you can put the key for the vehicle in a position that allows the steering wheel to be unlocked and not drain the battery. If you have a charge wire ran to the Ford Edge that might offfset some of the drain but most likely it would not be quite enough so we recommend sticking with what the manufacturer recommends.
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  • Can Roadmaster InvisiBrake Supplemental Braking System be Used with an RV that has Air Brakes
    The Roadmaster InvisiBrake Supplemental Braking System # RM-8700 can be used on an motorhome that has air brakes. The InvisiBrake does not require an electric brake controller. It connects to your RV and applies the towed vehicle's brakes at the desired setting by receiving signal from the motorhome's brake lights. For a supplemental braking system specifically made for motorhomes with air brakes, the SMI Air Force One # SM99243 is a great system. It connects directly to the RV's airlines...
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  • Installation of Roadmaster InvisiBrake on 2013 Ford F-150
    Installation of the Roadmaster InvisiBrake # RM-8700 in your 2013 Ford F-150 can use your OEM brake light switch which should have a purple/white wire for your signal.
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  • InvisiBrake Activates with RV Exhaust Brake and Runs Down 2015 Jeep Wrangler Battery
    If the exhaust brake makes the brake lights/tow package trailer connector on the RV come on then it will trigger the InvisiBrake # RM-8700. There is a solution but there isn't an easy way to bypass the exhaust brake from setting off the InvisiBrake. What you can do is add a charge line from the RV to the battery on your 2015 Jeep Wrangler. This will require a couple of additional parts. To keep a maintenance charge on the battery I recommend using a harness such as # BX88206 with...
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