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

Roadmaster Rear Anti-Sway Bar

Item # RM-1259-109
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Retail:$959.30
Our Price: $862.82
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Anti-Sway Bars

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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-1259-109 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.
  • All Info
  • Reviews (431)
  • Q & A (18)
  • Videos (2)
  • Photos
  • Why etrailer?

Roadmaster Anti-Sway Bars - RM-1259-109

  • Roadmaster
  • Anti-Sway Bar
  • 1-3/4 Inch Diameter
  • Rear
  • 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
  • Works with front anti-sway bar (sold separately) for absolute stability - available on certain applications only
  • Made in the USA


Specs:

  • Bar diameter: 1-3/4"
  • 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.



1259-109 Road Master Anti-Sway Bar - Rear

Installation Details RM-1259-109 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-1259-109

Average Customer Rating:  4.8 out of 5 stars   (431 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-1259-109
by:
2008 GMC Savana Van

I was amazed that all three products arrived in 4 days. The parts were front and rear anti-sway bars and Davis Trutrac. The service was friendly and fast. Kevin had the information that made the purchase fast and easy. Thanks for all the help . 563218



- RM-1259-109
by:
Dodge Challenger

Since Installing the anti-sway bar, on our 36 foot challenger class a RV, The handling has improved dramatically. My wife and I recently completed a 7000 mile cross country trip in a variety of weather conditions and the handling was terrific largely due to the anti-sway bar. We did not experience the normal sway when large trucks passed us. Even on windy days, the sway bar was indeed an asset as was the safety plus steering stabilizer system that I installed several years ago. It was money well spent and I highly recommend the use of the anti-sway bar. My son helped me install the sway bar and the directions were clear cut but it does take time to attach especially when the RV is not on a lift. 767172



- RM-1259-109
by:

Easy to follow instructions. Fast delivery. Thank you. I feel the frame plates should have holes drilled in the bottom as well as the sides. Unless you can remove the rear tires, there is no way you can drill holes in the side of the frame. I had to drill holes to install in the bottom of the frame. 716126



- RM-1259-109
by:
Roadmaster

when I decided to upgrade my w22 workhorse suspension on my 36 ft Coachman Santara , the concern was sway and control on the interstate surrounded by the big rigs from 50 to 70 mph, My Coachman would get to be a hand full due to cross and push winds. I installed the front and rear roadmaster sway bars, front and rear trac bars and a reflex steering stabilizer. 1) Roadmaster Rear Anti-Sway Bar - RM-1259-109 2),Blue Ox TigerTrak Rear-Axle Stabilizer TT2601 3), Roadmaster front Anti-Sway Bar - RM-1259-106 with trac bar it now drives ai a far more relaxed condition , should have done it year ago 693038



- RM-1259-109
by:

Looks great! Exactly what I wanted. However, after looking more closely, I decided I did not want to drill any holes in the frame. I was afraid it would cause a crack due to the "leverage" of the heavy engine behind it. Soooooo I do not have anything to report. It is a BEEFY looking device. And I wish I wasn't afraid to use it. I don't know what to do with it. Thanks....Tom Lakey PS Etrailer is the best place to buy! 640480



- RM-1259-109
by:
Workhorse

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 smokie mountains etc.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 is the norm now and driver fatigue was minimal.Driving the coach is much more enjoyable.David S Mansfield Ohio. 564363



- RM-1259-109
by:
2013 Kia Sorento

I was looking for a sway bar for my workhorse chassis in a short time. Steve Z at etrailer processed my order and was able to get me what I needed in time for me to be able to install it before we left on a trip. The price was competitive the delivery was as promised and they were great to work with. Steve tracked my order and knew when it arrived. I will be adding etrailer as one of my favorite vendors 545691


Comments
Great it made a big difference in the handling of our motor home.
Peggy - 07/24/2019

58154

- RM-1259-109
by:
2004 Nissan Leaf

As first time (Class A) motorcoach owners admittedly we had a lot to learn. Our 2004 Monica LaPalma was one of the first generation gassers raised up for more basement storage but without changing out/ updating the original leaf spring design on the Workhorse chassis. Result which was exacerbated by not knowing we should keep speeds below low 60s mph plus driving inexperience resulted in my opinion excessive sway on curves/ needed reactions freeway drivers. As an engineer, did my homework on causes, solutions, companies with proven products to stiffen up handling. Roadmaster kept coming up to the top of the list. We live in a rural area and arranged for a garage that works on commercial trucks to install. Their report to me was that the Roadmaster anti-sway bars was very stout/ well made, instructions were easy to follow... including a non-RV shop. We did our (Md to FL) shakedown trip last Winter (w/o towing a car) and LOVED the solid handling! It was like a new RV! Wife also drove about 1/4 of the drive time. Now we did also (based on every RVer we talked to) limit our speed to no more than 65... most of the time 60-63 mph. With that experience, this Winter we are towing our car and on our 'Western Ho' trip of a lifetime visiting as many Nat'l Parks as we can (currently in NM). Hope I have 'given foreword' a little and that our experience with Roadmaster (and speed control) helps those coming up behind us. 328786


Comments
Yes... we have now driven about 17,000 miles over the past 18 months in our 2004 Monaco LaPalma gaser and visited 70 Nat’l Park’s
Capt B - 01/02/2018

32514

- RM-1259-109
by:

It really added stability and made my motorhome more manageable to drive. 266592



- RM-1259-109
by:
2007 Monaco LaPalma

Prompt delivery of an excellent product. Sway bar is top quality. Thanks! 259721



- RM-1259-109
by:

Box was torn up on receipt. One washer missing was all. Product was straight forward and is really ment for experienced installers as modifications to the product had to be made to install the brackets to the frame. We had no way to remove the rear wheels to drill the holes in the frame and had to work in the wheel wells. I like the over all product, it seems to me that they can and should make parts that will fit any frame application. 189934



- 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-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-1139-149
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-1139-149
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


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-1259-108
by:

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


The sway bars really improved the handling characteristics on my RV (32 foot class A). The back and forth sway during and after cornering has been greatly reduced. 570016



- 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-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-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-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-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-1139-149
by:

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


GOOD PRODUCT 498565


25
465
Show More Reviews

Ask the Experts about this Roadmaster Anti-Sway Bars

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Do you have a question about this Anti-Sway Bar?




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Info for this part was:

Updated by:
Lindsey S
Updated by:
Shelly K
Updated by:
Sarah W
Updated by:
Isabelle B
Expert Research:
Michael H
Expert Research:
Jameson C
Installed by:
Jeff D
Installed by:
David F
Written by:
Laura H
Video Edited:
Dustin K

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