1. Anti-Sway Bars
  2. Roadmaster
  3. Anti-Sway Bar
  4. Rear
  5. 1-1/2 Inch Diameter
  6. Steel w Polyurethane Bushing
Roadmaster Rear Anti-Sway Bar

Roadmaster Rear Anti-Sway Bar

Item # RM-1209-105
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Anti-Sway Bars

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Anti-Sway Bars RM-1209-105 - Rear - Roadmaster
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Minimize sway and driver fatigue by improving the stability and driveability of your vehicle. The bar on this sturdy, effective anti-sway system mounts to the rear axle and to the frame to balance weight transfer and reduce body roll. Call 800-298-8924 to order Roadmaster anti-sway bars part number RM-1209-105 or order online at etrailer.com. Free expert support on all Roadmaster products. Guaranteed Lowest Price and Fastest Shipping for Roadmaster Rear Anti-Sway Bar. Anti-Sway Bars reviews from real customers.
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Roadmaster Anti-Sway Bars - RM-1209-105

  • Roadmaster
  • Anti-Sway Bar
  • Rear
  • 1-1/2 Inch Diameter
  • Steel w Polyurethane Bushing

Minimize sway and driver fatigue by improving the stability and driveability of your vehicle. The bar on this sturdy, effective anti-sway system mounts to the rear axle and to the frame to balance weight transfer and reduce body roll.


Features:

  • Minimizes side-to-side movement to improve overall stability of your vehicle
    • Lets you execute turns and quick maneuvers with confidence
    • Allows for a level ride, even on irregular surfaces
    • Reduces driver fatigue - minimizes effort required to keep your vehicle in line
  • Diminishes effects of crosswinds, passing motorists and shifting cargo
  • Designed to fit your vehicle and work in conjunction with its suspension system
    • Attaches to rear axle and to chassis - uses weight of axle to brace frame as it shifts in turns
    • Engineered to avoid interference with most popular aftermarket add-ons and accessories
  • Made with polyurethane bushings instead of the standard rubber variety for a longer-lasting system
    • Polyurethane is durable and resistant to damage caused by oil, gasoline and ozone
    • Less wear means less give in the system and better support
  • Constructed of thick 4140 chromoly steel for superior strength
  • Includes heavy-gauge mounting hardware, easy-to-follow instructions and bushing lubricant
  • Made in the USA


Specs:

  • Bar diameter: 1-1/2"
  • Limited Lifetime Warranty


Roadmaster Anti-Sway Bar Installed

Benefits of an Anti-Sway System

The Roadmaster anti-sway bar does for side-to-side movement what a good pair of shocks does for up-and-down motion. You will notice a marked improvement in your vehicle's stability as the bar works to balance weight transfer and reduce body roll. The anti-sway bar acts as a link between your vehicle's frame and its rear axle, using the axle as a brace to more effectively balance the shifting weight of your vehicle as you maneuver it. Lubricated bushings allow just enough pivot and rotation to compensate for the pressure placed on one side of your vehicle when it goes into sudden maneuvers, hits crosswinds or encounters shifting weights.


Roadmaster Anti-Sway Polyurethane Bushings

Superior Construction

The Roadmaster anti-sway bar is made of 4140 chromoly, a chromium and molybdenum steel alloy. This type of steel is considerably harder and stronger than the standard 1020 steel that is typically used in anti-sway applications. In addition, the larger diameter of the bar increases its torsional roll stiffness. The result is a bar that is not only stronger than the competition, but also nearly 30 percent better at resisting sway. The polyurethane bushings and grommets used at the attachment points are durable yet flexible, ensuring that the system is neither so rigid nor so malleable that it becomes ineffective.



1209-105 Road Master Anti-Sway Bar - Rear

Installation Details RM-1209-105 Installation instructions

This Product Fits The Following Vehicles




Video of Roadmaster Rear Anti-Sway Bar

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Roadmaster Rear Anti-Sway Bar Review

Speaker 1: Today we're gonna be taking a look at Roadmaster's Line of Rear Anti-Sway Bars for motorhomes. You want to refer to our fit guide to find the appropriate sway bar for your vehicle.The large size and heavy weight associated with motorhomes can cause drastic amounts of sway when driving down the road. To help create a safer ride, and reduce driver fatigue, we can minimize the sway by adding an additional rear sway bar. So when making basic maneuvers or sharp turns, you'll minimize the risk of a rollover.Also, when driving on windy days, on uneven pavement, you can get a sway affect going back and forth, and you'll have to compensate for that with the steering wheel to maintain and safe, straight path.This additional bar will help reduce that amount of sway, making it easier to maintain control of your vehicle and reduce vehicle fatigue, 'cause you're not having to compensate as much.The Polyurethane Bushings will help dampen road vibrations, and additionally stand up to corrosive road oils, salts, and UV rays. The bar is made up of 4140 chrome steel, where most factory bars are only made of a lower strength, 1020 steel.And to maximize your reduction of sway, Roadmaster recommends you also get a front anti-sway bar. Using our fit guide at etrailer.com you can pick out the appropriate rear and front end anti-sway bars for your motorhome.Now we'll take our anti-sway bars out on our test course.

When we go into our alternating bumps, you can instantly feel a difference in the amount of sway. It's a lot more stable side to side then it was before, making it much easier to maintain control of the steering wheel.And then we'll head onto our straight bumps. When we hit those, there's a definite difference in how much forward and back movement than we had before. It's definitely a more comfortable ride than what we had. And again, it's easier to maintain control of the steering wheel.And now we'll head onto our slalom where we can really test our the sway capabilities.

So if we have some evasive maneuvers, how our motorhome would react. And it's a massive difference. When turning, there's hardly any sway. I feel much more confidence taking sharp, evasive turns.Our customer David S purchased both front and rear Roadmaster anti-sway bars, and had this to say."I installed front and rear sway bars on my 2006 Itasca Suncruiser after making a winter trip to Florida from Ohio. We made a return trip this past winter, through the smoky mountains etcetera.

The improvement in handling was so noticeable, my wife noticed it from the passenger seat. I highly recommend both of these products. I have a workhorse w24 chassis. Crosswinds and semi-push was very minimal. One handed driving in most situations in the norm now, and driver fatigue was minimal.

Driving the coach is much more enjoyable."And that completes our look at Roadmaster's line of rear anti-sway bars for motorhomes.


Customer Reviews

Roadmaster Rear Anti-Sway Bar - RM-1209-105

Average Customer Rating:  4.8 out of 5 stars   (501 Customer Reviews)

Minimize sway and driver fatigue by improving the stability and driveability of your vehicle. The bar on this sturdy, effective anti-sway system mounts to the rear axle and to the frame to balance weight transfer and reduce body roll.

- RM-1139-149
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


GOOD PRODUCT 498565



- RM-1139-140
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


Good anti-sway bar. Installation was made difficult by being unable to easily remove the OEM anti-sway bar. Although this item was intended to go on a near-new 2015 motorhome, the original retaining bolts were very difficult to remove. However, installation of the RM 1139-140 was relatively easy and completed in about an hour by one person. If two people did the task, it could be done in half that time. The only disappointment, and it was significant, is that there was no mention of torque values for the mounting bolts. 223089


Comments
After a year of use over about 8,000 miles, I have to say the improvement they made are moderate at best even considering I put them on the front and back.
Vince L - 08/30/2016

20677

- RM-1139-140
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


Combined with rear sway bar drives just as I had hoped 312489



- RM-1139-146
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


I have a class A motor home on an F53. They are scary to drive. Called Noah at etrailer.com. He knew just what I needed. Front sway bad, rear sway bar and steering stabilizer. Had them installed today and took about 100 mile drive. Wow, what a difference. Delivery was really fast and no one could beat them on price. I would use roadmaster products again. Thanks Noah for all your help!! 598297



- RM-1209-131
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


I put this on my 2015 Winnebago view. I left the stock swaybar and added this one to the front of the rear axle. It was the single biggest improvement that I did to the suspension. I can't believe Winnebago sells the RV without this upgrade. It improves handling in the wind or turning corners tremendously. 258934



- RM-1139-165
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


I have a F350 dually with a 2300 pound slide in camper that rocked to the point it was scary to go around a turn. I just installed the rear sway bar and the difference is unbelievable. I have just ordered one for the front. Well worth the money. 135527



- RM-1139-146
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


Arrived on time and is now installed. Made all the difference in the world. No more white knuckles. Don't even think twice about this upgrade! Just do it !!! Also installed the Roadmaster RSSA........ 604984



- RM-1139-149
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


Received product in a timely manner, package a little damaged but all parts were there, installed myself. Video was helpful except where it says refer to instructions for torque limits. Written Instructions and chart below do not agree. 568016



- RM-1139-149
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


Tammy P. made sure I received the sway bar when I needed it. Great service. 683359



- RM-1139-149
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


Drives and handles 200% better. Manufacturers should be required to install these at the factory. 672850



- RM-1139-140
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


Great customer service from purchase to delivery. Kept informed all the way by George with fast shipping. Sway bar was quick and easy to install on my 2018 Windsport, about 1 1/2 hours by myself. Considerably heavier than original, helps reduce sway as advertised. Great experience with company would purchase other items in future. 483047


Comments
Sway bars are still working great. Would not have another RV without them.
Thomas - 03/09/2019

50330

- RM-1139-147
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


service has been excellent .... I'll let you know about products once there installed on Monday. We have a long trip planed soon to test them out 450819



- RM-1129-111
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


I have a 2000 dodge van 3500. Roadtrek versatile. The installation of Sway bar 1129-111 was somewhat easy. Except for connection to the Fram rails. Vinyl cover on driver side fram rail and propane lines next to rail on both sides. It would make installation Easter to remove rear tires and support vehicle on Jack stands on level ground. After driving for several miles the sway bar performed well. Would recommend rear sway bar to help stabilize your vehicle. Thank you 386045



- RM-1139-149
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


The rear sway bars on my Tiffin motor home were so small that trucks almost knock us over. Has the new sway bars fixed the problem? No, but 80% of the sway we were getting is gone. Still needs track bar, and Sumo air bag helpers. Probably the best purchase so far for what we are trying to accomplish. Recommend them highly. 570979



- RM-1139-149
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


The product is great. The change in handling of my Ford F53 based motorhome is like day and night. The sway ( those of you who have an F 53 know what I’m talking about ) is so much more tolerable and no more white knuckles. The installation was straightforward but wasn’t as easy as it looked in the instructions. The torques were killer and took three of us to get done. The product does what Roadmaster clams it will do and I’m happy with the anti sway bar. 664236



- RM-1139-149
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


Really easy to put on made a big improvement in the sway in wind is was very hard to drive before great quality well worth it. 635504



- RM-1209-131
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


It took a little effort on the phone to figure out which sway bar was needed for the motorhome I have. I was skeptical about the right one being sent but it was correct and installation was a couple of hours. It fit perfectly and really dampened the body roll we were having. Worked great, service and delivery was fantastic. This was the first time I have used etrailer.com and am very happy with their product and willingness to help. I'll be using them again and I highly recommend them. 356110



- RM-1209-131
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


Good Product, great customer service from etrailer. They stocked the product and shipped it prompt. 179160



- RM-1139-149
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


This is the first of three pieces I wanted to install on my Rig. (budget permitting) The advice to start with this rear sway bar first was spot on. Since this augments the existing sway bar and doesn't replace it, It really does makes a difference. I chose to have it installed by my local RV Shop, since they had all the equipment and tools to do it right. I paid them $225.00 for the install. The tech reviewed the installation video and was pleased I had all the torque data. I might tackle the front anti-sway bar and the Reflex Steering Stabilizer by myself, but this was more than I cared to tackle on my own. Those existing U-bolts are a beast to deal with for this do it yourselfer and I was glad to let him handle it. 669629



- RM-1139-176
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


Let start with Mark S. Sale Rep Good Job Very Helpful Courteous and very informed. Very prompt on returning my calls. Thanks Mark S. you define what is the Excellent in Customer Service Wow same Day Shipping every time that evening your order will be at UPS heading your way. Got the Sway bar installed Instruction clear and precise. Made a huge differences in way motor home handle . I have not installed the back sway bar motor home. This upgrade very well worth the money. Dont think no more about this upgrade; just order and install . you wont regret it. 508616



- RM-1139-147
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


Very nice quality product and installation was pretty straight forward with the right tools, just take your time and do things step by step. This sway bar was installed on a 2004 Fleetwood Jamboree on E450 Chasis. Rides great now with less sway and more control! 466581



- RM-1139-149
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


Really improved handling in curves. No longer tips or leans over even if I drive in too hard. It's a challenge to do yourself due to the necessary torqueing but it can be done. I'm now wanting to get the front sway bar replacement. 666785



- RM-1139-149
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


The Road Master rear sway bar is Great but only because of etrailer with their installation video. The written instructions that come from Road Master are less than vague and incomplete. The only thing of value in the instructions is the torque specifications. Without etrailer‘s video the average mechanically inclined person would not know how to properly install the system 453321



- RM-1139-147
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


Product arrived quickly as usual with etrailer. The etrailer video was more handy than the accompanying instructions from Roadmaster. etrailer provided videos for both the early E450 and the later chassis installations. While essentially the same, there was a small difference of enlarging an existing hole on the early frame in my case a 2006 and having to measure to locate the hole on the later. It would be nice if Roadmaster included a parts diagram to help with assembly instead of small not clear pictures. I thought the parts package was short two half inch washers, I supplied them from my stock. The fittings on the Roadmaster bar are much heavier than the stock components. Installation is on a 2007 Coach House, motorhome. Took it for a test drive, big difference in handling. 460014



- RM-1139-115
by:

Review from a similar Sway Bar with Bushing Kit in Anti-Sway Bars


Very high quality product. The bar is much more substantial than the original bar. I debated buying the Roadmaster bar for a long time because it is expensive but I never liked the way the original bar was designed to run through grommets in holes in each axle half. The Roadmaster bar provided an immediate ride improvement. 1 mile down the road on my test drive, I was already convinced I made a worthwhile purchase. I found a greater sway improvement by replacing the rear sway bar than the front but I do notice a definite improvement with the front. If I had to do it over again I would repeat my process which was rear bar first then front bar if I felt more was needed. 108360


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Info for this part was:

Written by:
Lindsey S
Video Edited:
Dustin K
Updated by:
Shelly K
Updated by:
Sarah W
Updated by:
Isabelle B
Installed by:
David F

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