Roadmaster InvisiBrake Supplemental Braking System
(217 reviews)
Price: $1,175.00
In Stock
Roadmaster InvisiBrake Supplemental Braking System
Our Price: $1,175.00
Will this fit?
To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.
In Stock
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
- All Info
- Reviews (217)
- Q & A (0)
- Photos
- Used (1)
Roadmaster Tow Bar Braking Systems
- Brake Systems
- Air Brakes
- Hydraulic Brakes
- Pre-Set System
- 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
Item # RM-8700
Installation Details
This Product Fits The Following Vehicles
- 2010 - 2024 Ram 1500
- 2013 - 2018 Ram 1500 with adjustable pedals and with electronic shifter
- 2013 - 2018 Ram 1500 with adjustable pedals and without electronic shifter
- 2013 - 2018 Ram 1500 without adjustable pedals and with electronic shifter
- 2013 - 2018 Ram 1500 without adjustable pedals and without electronic shifter
- 2019 - 2023 Ram 1500 Classic with adjustable pedals and with electronic shifter
- 2019 - 2023 Ram 1500 Classic with adjustable pedals and without electronic shifter
- 2019 - 2023 Ram 1500 Classic without adjustable pedals and with electronic shifter
- 2019 - 2023 Ram 1500 Classic without adjustable pedals and without electronic shifter
- 2010 - 2012 Ram 2500
- 2013 - 2024 Ram 2500 with adjustable pedals
- 2013 - 2024 Ram 2500 without adjustable pedals
- 2010 - 2011 Mazda 3
- 2010 - 2012 Ram 3500
- 2013 - 2024 Ram 3500 with adjustable pedals
- 2013 - 2024 Ram 3500 without adjustable pedals
- 2012 - 2019 Fiat 500
- 2014 - 2016 Fiat 500L
- 2007 - 2019 GMC Acadia
- 2017 - 2017 GMC Acadia Limited
- 1999 - 2022 Hyundai Accent
- 1984 - 2020 Honda Accord
- 2006 - 2006 Honda Accord Hybrid - with rear heater
- 2006 - 2006 Honda Accord Hybrid - without rear heater
- 2006 - 2006 Honda Accord non-Hybrid - with rear heater
- 2006 - 2006 Honda Accord non-Hybrid - without rear heater
- 2007 - 2007 Honda Accord with rear heater
- 2007 - 2007 Honda Accord without rear heater
- 2007 - 2012 Nissan Altima
- 2006 - 2010 Nissan Armada See All Vehicle Fits
Customer Satisfaction Score:
89% were satisfied with this product
11% of customers were not satisfied
- Wrong item was ordered
- Product did not meet expectations
- etrailer mistake
Customer Reviews
Roadmaster InvisiBrake Supplemental Braking System - RM-8700
Average Customer Rating: 4.8 out of 5 stars (217 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.by: George C06/12/2023
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??
by: Russell06/01/2022
A little more difficult than others to install but definitely worth the money. The only thing I noticed is every couple of hookup’s you need to pump the brakes once to activate the system
Russell
6/3/2023
Works great however if there’s a short anywhere in the primary vehicles light wiring. It will randomly apply the brakes.
by: Dennis10/12/2022
Intermittent brake application sticking on. 3 different times in 4000 miles but always seems to fix itself.
Dennis
10/13/2023
Still occasional compressor sticking on. Times out eventually after annoying buzzer alarm.
Jenny N.
11/7/2023
@Dennis I reached out to Roadmaster and there could be more than one reason it is happening. The best way would be to reach out to Roadmaster so that they can confirm the situation and components that are in play to better know what way they can help. I will email you the contact details.
by: Charles 11/23/2023
I've always have a Invisibrake system installed on my tow vehicle as they work excellently and are not in the way.
by: Marty10/05/2023
I love the InvisiBrake system! It's permanent installation and flawless operation really simplifies the process of connecting and disconnecting the towed vehicle. I would definitely buy it again and recommend it without hesitation.
by: Brent10/12/2023
My Invisibrake system works excellent. I t was easy to install for anyone with a little mecanical ability. Love it
by: Kreg07/13/2023
Not using it anymore because the Ford Maverick we got it for, was upgraded to a Ford Ranger. It did not supply enough power to charge the battery. The charging option was one of the main reasons we bought this one. I think it is different for other cars. It was a little challenging to adjust the brake power. We switched to a portable solution for the Ranger.
by: Triplewide12/31/2015
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.
by: Earl 04/20/2023
2018 Jeep Wrangler
Realitively easy to install except for the brake indicator in the RV. The problem was in the 2018 Wrangler, getting the wire I needed ti splice int for the in-use indicator.
by: Steve08/18/2022
The installation went as planned. All parts fit and worked the first time.
by: Chuck11/05/2022
Purchased this braking system and installed on 2005 Jeep Wrangler and towed for over 3000 miles with no issue. Uninstalled and reinstalled on a 2016 Jeep Wrangler this fall. By far, the best supplemental braking system we’ve ever used.
by: Douglas 06/29/2023
Jeep
I have one in my jeep and works great. Just put a 2nd one in my friend's jeep and he loves it. Very easy to use and the adjustments are easy, depending on how much braking you want on your towed vehicle.
by: Edwin 01/27/2023
Works great after I finally got it installed (see review on wiring harness)
by: Scott09/27/2022
2021 Ford Ranger. The installation is not really technically challenging, but there are a lot of steps and you need to twist yourself under the dash for quite a bit of it. The main installation comment I would have is assume you are going to drill a hole in the firewall for the wires/air hose. Using the existing grommets is more work/risk than it is worth. There were several videos, but none specifically for my vehicle and I would have liked the specific detail on the air connection. We have about 800 miles towing with it so far and it definitely it helps with stopping, plus the break-away safety is good peace of mind.
by: Boyd10/03/2022
Happy so far. I wouldn’t say installation is difficult but it did take me some time. Unit just barely fits under the drivers seat of my ‘03 TJ so it is out of the way. Does take away leg room from the rear passenger but who rides in the back of a TJ right? I did have to fab up some spacers for the clip that holds the brake cable due to the fact that the firewall of my TJ has a ridge right where it needed to be mounted.
by: Dwight02/11/2023
The ordering process was easy and convenient. The free shipping was awesome, and the product was delivered in less than a week. I am sure the product is great but am in the process of installing the base plates and tow bar. The Invisibrake and wiring will come later. Great job Etrailer!
by: Ken K.08/28/2017
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.
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.
by: G.D.08/23/2015
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!
G.d.
8/23/2016
Excellent! Have used it towing my CRV on two 2,ooo mile trips since installation. Works very well
by: Andy08/03/2022
Jeep Grand Cherokee
Permanent installation looks and works great. Simply connect to the tow vehicle and ready to go…every time! The only issue I see is the Jeeps brakes seem to lose vacuum as the brake pedal is “hard” to push after sitting overnight.
by: Neal03/24/2023
etrailer is awesome to deal with, very knowledgeable and helpful. We would highly recommend this company for sales and installation.
by: Les07/01/2022
2009 Subaru Forester
I would highly NOT recommend the Invisibrake system if you are installing it yourself unless you are young and have a minimum of a Masters Degree in Automotive Engineering.
by: Neil10/11/2023
It’s great! Easy set up!
by: Gary01/30/2020
Jeep
Nice product and simple to install should be easy to use. I installed under the seat of my 99 jeep wrangler
by: Guy08/09/2019
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.
by: Matt 01/25/2023
Works well and installation went well but if not familiar with electrical wiring and general vehicle knowledge I would suggest having someone install for you.
25
217
Show More Reviews
See what our Experts say about this Roadmaster Tow Bar Braking Systems
- Installation of Roadmaster InvisiBrake on 2013 Ford F-150Installation 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.
view full answer... - How To Wire In The Monitor Light For The Roadmaster InvisiBrake Supplemental Braking System The monitor light for the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 would need to be grounded to the chassis of the motorhome. The LED light and audio signal will both have a wire to run down to the chassis and another wire to run over to the towed vehicle to connect to the cold side of the brake light switch. To accomplish this you'll most likely need to extend to wire to run it down to the chassis and then use a ring terminal and self tapping screw to connect the wires...
view full answer...
- Will Roadmaster InvisiBrake Braking System Fit Under Passenger Seat on a 2013 Jeep WranglerThe ideal location for the controller box of the InvisiBrake, # RM-8700, is under the drivers or passengers seat. However, it can be mounted anywhere in the interior of the vehicle; under the rear seats, in the trunk, or behind panels. I have included a link to the instructions to the right. Based on those you should be able to determine that best mounting location for you. I have also linked a couple of installation videos for you.
view full answer... - Install Video to Use as Guide for Installing Roadmaster InvisiBrake On 2012 Jeep Grand CherokeeWhile we haven't had the chance to install the Roadmaster InvisiBrake System on your 2012 Jeep Grand Cherokee yet we have installed it on the very similar 2008 Jeep Liberty. I attached an install video for this for you to check out that you can use as a guide. The install will be very similar. I also attached a link to the detailed install instructions for this kit too.
view full answer... - Can Roadmaster 8700 InvisiBrake System Make Beeping Noise in Engine CompartmentThe only 2 things the Roadmaster InvisiBrake # RM-8700 has that makes an audible noise is the air compressor and the motorhome monitor that lets you know if the brakes have been activated too long. I spoke with my contact at Roadmaster who confirmed that nothing with their system makes a beeping sound. Since this is the case the Ford service department you went to either doesn't know much about the vehicle or they were just trying to move on to the next customer. I would take your vehicle...
view full answer... - Does Roadmaster Invisibrake System RM-8700 Compressor Run ContinuouslyIn 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.
view full answer... - How Does Brake Pedal Bracket Attach to Pedal for Roadmaster InvisiBrake System # RM-8700I attached a picture that shows how the brake pedal bracket is supposed to attach to the pedal with the Roadmaster InvisiBrake Supplemental Braking System # RM-8700.
view full answer...
- Troubleshooting a Jeep That Won't Start After Flat Towing The Roadmaster InvisiBrake Supplemental Braking System Item # RM-8700 will drain the battery while towing so the first thing to check is if the battery is reading 12.6 volts or higher. If not then your battery is the issue. The starter could also be needing to be replaced if you're not getting a crank. I spoke with Roadmaster and their tech stated that if you have a brake relay or custom fit brake switch installed and the wiring is incorrectly installed it could be causing this issue...
view full answer... - Do all of the Wires of the Invisi-Brake Need to Be Wired to Install Brake KitEven 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. Continue...
view full answer... - Towed Ford Explorer Battery is Dead After A few Hours of Flat Towing Behind Itasca MotorhomeThe Roadmaster InvisiBrake Supplemental Tow Bar Braking System # RM-8700 is designed to deliver a trickle charge from your running motorhome's electrical system to your toad's battery while you're underway. This power feed is dependent on good ground connections between both the motorhome and InvisiBrake, and between the InvisiBrake and the toad. You can check to make sure all electrical connections are sound and that there is no corrosion on connectors that might be impeding the charging...
view full answer... - Supplemental Braking for Flat Towing a 1999 Toyota RAV4Most likely yes, but the Invisibrake was only test back to the year 2000 for the Toyota Rav4 so we don't know for certain if it would fit a 1999 model. Since there was a generation change in 2000 that makes it harder to know as well. I have a solution that I know will work well though. The easiest system to set up and use is the Blue Ox Patriot II # BRK2016, that applies the vehicle brakes in proportion to how much the tow vehicle is braking. This is the safest way to stop and it reduces...
view full answer... - How To Install The Monitor Wire For The Roadmaster Invisibrake Supplemental Braking System The Roadmaster InvisiBrake Supplemental Braking System # RM-8700 monitor wire comes with "bullet" style connectors. The monitor wire will not connect to the brake light switch wire on your motorhome. It simply runs up to your dash for the light. On the vehicle side you'll tap into the brake light switch wire and then run it to the grill of your ram and connect to the motorhome side using the bullet connectors. If you have an empty terminal on your 6-pole and 7-pole sockets on your Ram...
view full answer...
- Installing The Roadmaster Invisbrake On A 2021 Ford Escape HybridYour 2021 Ford Escape Hybrid does not have a vacuum assisted braking system so you will be able to skip the vacuum line step when installing the Roadmaster InvisiBrake Supplemental Braking System # RM-8700.
view full answer... - Trouble Setting Brake Pressure on Roadmaster InvisiBrake Supplemental Braking SystemI checked the instructions for the Roadmaster InvisiBrake Supplemental Braking System part # RM-8700, in order to set the brake pressure you must first pull the breakaway pin and then pull out on the knob. Then, rotate to the designed psi, reengage the knob, and reinsert the breakaway pin. I have attached a photo below with these instructions. If the brake pressure still fails to set, there may be a hardware issue and a warranty claim with the manufacturer would be needed.
view full answer...
- 2019 Ford Ranger Separate Brake Tee Install For Roadmaster InvisiBrakeThank you for your purchase from etrailer of the Roadmaster InvisiBrake Supplemental Braking System # RM-8700. I'm not quite sure what you mean by vacuum gizmos, but for your 2019 Ford Ranger, according to Roadmaster, the 452154-00 is needed, as your Ranger has a 5/8" vacuum tube that needs a separate brake line tee. I have added cut outs for you which show the process.
view full answer...
- Will the Roadmaster InvisiBrake Release Air Pressure Over Time When Disconnected from MotorhomeThe air pressure in the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 will slowly release the pressure until it is down to zero when you disconnect your 2017 Ford Focus from your motorhome. It won't drop all of the sudden once disconnected. I reached out to my contact at Roadmaster who confirmed this.
view full answer... - Factory PSI Setting for Roadmaster InvisiBrakeThe braking pressure that the Invisi-Brake System # RM-8700 that you referenced comes from the factory set at is the most universal setting that works for most applications, 60 psi. You will want to test your setup using the preset setting and compare the stopping power to how the RV stops without a vehicle behind it and adjust as necessary.
view full answer... - Initial Brake Pressure Setting Recommendation for a Invisi-Brake System 8700The braking pressure that the Invisi-Brake System # RM-8700 that you referenced comes from the factory set at is the most universal setting that works for most applications. You will want to test your setup using the preset setting and compare the stopping power to how the RV stops without a vehicle behind it and adjust as necessary. For further info check out the installation instructions I attached to the right. If your brakes are smelling hot I would try backing the pressure off a...
view full answer... - Would the Roadmaster Invisibrake System Fit a 2006 Ford ExplorerYes, the Roadmaster Invisibrake part # RM-8700 is a fit for your 2006 Ford Explorer. This system can basically fit any vehicle so it would work well for yours.
view full answer... - Items Needed When Towing A Ford F-250 With Another Ford F-250The proportional brake controller you have in your Ford F-250 is intended to be used when towing a trailer, and is not designed to work to control brakes on a towed vehicle. I have attached a link to a helpful article that explains brake controllers you can check out. If you are planning on flat-towing a vehicle it requires 5 things. Those are base plates on the towed vehicle, a tow bar to attach between the towing and towed vehicle, safety cables, lighting on the towed vehicle, and now...
view full answer... - Tip for Cutting Vacuum Line of 2020 Jeep Gladiator to Install Supplemental BrakingI'd use a pipe cutter. Pipe cutters will make quick work of the harder vacuum line and won't damage the overall shape of the lines either. Pipe cutters can be found at local hardware stores.
view full answer... - Installation Location of Roadmaster InvisisBrake on 2012 Honda CR-VThe Roadmaster InvisiBrake Supplemental Braking System # RM-8700 is a great option for your 2012 Honda CR-V EX. In all of our installations of this model we have installed it under the driver's seat. I've attached videos to assist. You can install it where your tech recommends as long as it can sit flat and nothing rubs against the adjustment knob to change your settings.
view full answer... - Factory Preset PSI Rating for the Roadmaster InvisiBrake Supplemental Braking System # RM-8700I spoke with my contact at Roadmaster and he informed me that the factory preset PSI rating that the Roadmaster InvisiBrake Supplemental Braking System # RM-8700 is about 60 psi. Which is also the same rating they used when they used this product with a 2011 Jeep Wrangler Unlimited like what you have.
view full answer... - Have to Prime Brake Pedal for Roadmaster InvisiBrake Supplemental Braking System to Build PressureI spoke with my contact at Roadmaster regarding the InvisiBrake Supplemental Braking System # RM-8700 that you have installed. He stated that depending on your vehicle, priming the brake pedal in order to build the necessary pressure is completely normal. Certain vehicles require this to essentially deplete the vacuum component of the system before it can operate properly. Before taking off on a trip, you will just need to press on the brake pedal a few times, as you have been doing already....
view full answer...
Do you have a question about this Tow Bar Braking System?
Used Items Available
Condition: Like New
Notes: May have damaged packaging or minor cosmetic blemishes.
Info for this part was:
Test Fit:
Joe V
Test Fit:
Nicholas E
Test Fit:
Rick A
Test Fit:
Shane T
Test Fit:
Randy B
Test Fit:
Andrew S
Test Fit:
Brent H
Test Fit:
Shane H
Test Fit:
Robert C
Test Fit:
Conner L
Test Fit:
David F
Test Fit:
Ryan G
Test Fit:
Clayton O
Test Fit:
Bradley B
Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
John H
Expert Research:
Adam R
Expert Research:
Jeffrey L
Expert Research:
Victoria B
Video Edited:
Zack K
Video Edited:
Joshua S
Video Edited:
Jacob T
Video Edited:
Andrew L
Video Edited:
Kathleen M
Video Edited:
Dustin K
Video Edited:
Sue W
Video Edited:
Chris R
Video Edited:
Zach D
Video Edited:
Jonathan Y
Video by:
Andrew K
Video by:
Patrick B
Video by:
Alan C
Video by:
Michael B
Video by:
Thomas T
Video by:
Schuyler H
Written by:
Lindsey S
Updated by:
Adele M
Updated by:
Laura H
Updated by:
Wilson B
Updated by:
Jenny M
Updated by:
Hannah L
Updated by:
Mike S
Updated by:
Isabelle B
At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Product Experts Available Now!
Call 1-800-940-8924
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.