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Roadmaster Comfort Ride Add-On Kit for Triple Axle Trailers - 3,500-lb Axles

Roadmaster Comfort Ride Add-On Kit for Triple Axle Trailers - 3,500-lb Axles

Item # RM-2450-50
Retail:$378.48
Our Price: $276.44
You Save: $102.04
Trailer Leaf Spring Suspension
Shipping Weight: 28 lbs
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Add these 2 heavy-duty shock absorbers to your Roadmaster Comfort Ride kit for tandem-axle trailers (RM-2450) to upgrade the suspension on your triple-axle trailer. Mounting brackets and hardware are included. Fits 2-3/8" axles. Great Prices for the best trailer leaf spring suspension from Roadmaster. Roadmaster Comfort Ride Add-On Kit for Triple Axle Trailers - 3,500-lb Axles part number RM-2450-50 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Roadmaster Trailer Leaf Spring Suspension - RM-2450-50

  • Suspension Kits
  • Boat Trailer
  • Camper
  • Car Hauler
  • Snowmobile Trailer
  • Utility Trailer
  • 3500 lbs
  • Triple Axle
  • Shocks
  • Roadmaster

Add these 2 heavy-duty shock absorbers to your Roadmaster Comfort Ride kit for tandem-axle trailers (RM-2450) to upgrade the suspension on your triple-axle trailer. Mounting brackets and hardware are included. Fits 2-3/8" axles.


Features:

  • Add-on shock kit adapts your Roadmaster Comfort Ride system (RM-2450) for use with a triple-axle trailer
  • Bolt-on installation
    • Included tie plates with extension pieces replace your existing U-bolt plates
    • Upper brackets mount on trailer frame with included hardware
    • Shocks attach to tie plate extensions and to upper brackets to help dampen movement of axle
  • Limited Lifetime Warranty


Specs:

  • Application: triple-axle trailers with leaf spring suspensions
    • Axle size: 2-3/8" diameter (typical 3,500-lb axle)
  • Shock length:
    • Extended: 17-1/2"
    • Compressed: 11-1/2"
  • Quantity: 2 shocks
  • 1-Year warranty


2450-50 Roadmaster Comfort Ride Shock Absorbers - Triple Axle Add-On Kit - 2-3/8" Axles

Installation Details RM-2450-50 Installation instructionsAlternate Instructions RM-2450-50 Installation instructions



Customer Satisfaction Score:


Customer Reviews

Roadmaster Comfort Ride Add-On Kit for Triple Axle Trailers - 3,500-lb Axles - RM-2450-50

Average Customer Rating:  4.7 out of 5 stars   (188 Customer Reviews)

Add these 2 heavy-duty shock absorbers to your Roadmaster Comfort Ride kit for tandem-axle trailers (RM-2450) to upgrade the suspension on your triple-axle trailer. Mounting brackets and hardware are included. Fits 2-3/8" axles.

by:

Install wasn’t bad. Grand design welds a V bracket inside the spring hangers for more strength so that was my only challenge on install. This caused a problem on the center hanger as the spacer wouldn’t fit. Had to grind about a quarter inch off the spacer so it would fit as I could only bend the bottom of the hangers so much. Will be towing about 100 miles this weekend so it will be nice to hopefully not have broken drawers in the back of the trailer as well as shelves in the fridge door dislodged. I also did the X factor cross braces on the front and rear hangers for more strength. Will post back after we get more miles on it, but given all the other positive reviews I don’t think I’ll be unhappy.



by:

7-28-2023
1. The impression from "people"
was usually "why shocks on a camper", which I would answer "why shocks on your car".
2. The ride was much better; as you may imagine driving your car without shocks. And the sway was minimized & the braking effectiveness increase.
3. We've sold that RV and on our new one already planning the install; and including the wet bolts and mod on the leaf-spring hangers.



by:

Installed a year ago, I made a drilling template to help locate the frame mounting bracket screw holes. Installed a set on (2) fivers, spent average of 2.5 hours for total installation per fiver. Helped the ride of the trailer. Would certainly recommend the shock kit.



by:

This is a great kit! Everything needed is included. Be sure to purchase the heavy duty wet bolt kit for the shackles.



by:

I spent considerable time researching how to improve the towing experience of my 5th wheel camper without breaking the bank. This is an excellent product and it performed exactly as I had hoped. It improved my trailer's handling over the very rough roads we travel in just about every state in our country. If you are looking to improve your towing experience, then this is a reasonably priced product.



by:

The product itself is very well made and shipped. Install is pretty straight forward, measure twice, drill once type of thing.

My issue with this product is actually etrailer. I purchased this and 5 days later the price was $xx less. I contacted customer service figuring they could credit the order given 5 days passed but was told that their pricing changes daily in some cases and would not credit the difference. I kept an eye on the price over the next week and sure enough, noticed multiple price fluctuations from $xxx to $xxx. I'm not sure how this policy wins customer loyalty, but that's how etrailer operates apparently. If you buy this from etrailer keep a close eye on the price, you could save nearly 20% if you buy it on the right day.



by:

My brother in law installed the slipper spring kit to replace a broken spring and equiflex on the left side of my 2018 solitude 384GK. We found it very easy to install and the written instructions and a couple of videos helped. We travelled from Phillipi WV to Arley Ala. after. I saw a very big difference in the handling and stability of the RV. Was very pleased with the results. I have not installed the shocks yet will do that when I get to Fla.
I purchased the kit from E trailer the service was excellent received everything 2 days earlier than expected, no damage or missing parts. I dealt with Ashley at E trailer she was extremally helpful and knowledgeable.



by:

Great addition to my camper. After being frustrated with broken leaf springs, stuff broken in the camper and being jarred from pot holes, I installed these shocks to help the ride. Easy to install (just takes time) and a great addition.



by:

Great kit, really beefy high quality components, nice powder coating. Because my axles are above the leaf springs which I believe is relatively rare, the kit needed some modification, not too bad if you're handy and have additional tools. This kit is a no brainer for axles underneath leaf springs, pretty much bolt on from seeing the eTrailer videos, dramatically improved ride quality on my 20 mile test drive, looking forward to our next trip.



by:

OMG! After having the trailer bottom out on the stock springs while traversing a RR crossing, this system has proven to be amazing. Returning from a VA campground I crossed multiple RR crossings and traveled some rough pavement. I found I had left a bottle of shower soap on the ledge in the shower! It was still there when I set up in my yard. Not possible with the stock suspension!



by:

Along with the new springs....everything works as advertised. Well satisfied. No complaints.
I had to modify the one set of shock brackets to fit, as I have raised the trailer 5 inches
to match up with the 4 inch raised truck.
Otherwise...no swaying....no bouncing........no problems.
Thanks etrailer for your help.



by:

I had installed this same kit several years ago on my fifth wheel camper. Recently I had to travel on a very wash boarded road near St George, Colorado. I had 2 of these shock units fail so I order the new one since they worked so well for so long. To my amazement the new rendition of the shock absorber system had been completely redesigned a greatly beefed up. I do believe that these newly designed units would have held up against the rigor of the road I had to travel. I'm very satisfied with them. In addition I'd like to say that other than having to work under the trailer to do the installation it is a very easy job to do, just follow the instruction and do one wheel at a time.



by:

I’m impressed with the product, the plates and brackets are well machined and finished…it was extremely difficult drilling the holes for the upper shock mount…the spring equalizer was directly under the holes to be drilled…maybe it’s my model of trailer that is making it hard…2012 27’ Keystone Cougar..



by:

One of the best things I’ve installed on my travel trailer. They smoothed out the ride and removed the sway from my trailer. Every travel trailer made should have these installed on them at the factory.



by:

Excellent product! Absolutely TRANSFORMED my towing experience! Installed on a 2017 Open Range 310BHS travel trailer. Approximately #10,500 loaded. Trailer doesnt bounce or jolt over the road. Ride is substantially bettter. System is tough, thick, and seems it will last. Instructions are pretty clear, and all tooling neede is pretty basic. I reccommend a digital inclinometer to be able to set your shock angles precisely. They're cheap on [online]. I reccommend this kit to every single person who has the same bouncing issue. Could not be happier with the purchase!



by:

This product is exactly what I was looking for and thanks to “etrailer” they assisted me in getting the right product for my specific application. Thank you all for your help and great customer service and support over the many years.



by:

We live in our RV full time, Montana 3820 FKS, so I had to do the install while staying at a campground. I was able to get it all done over the course of a couple days without too much trouble. If you have an average mechanical skill you should be able to tackle the job no prob. Overall the ride has improved significantly over the stock suspension. I also had all the wheels balanced which takes some of the vibration out as well.



by:

The Roadmaster Comfort Ride Shock Absorber kit on our Forest River Surveyor travel trailer was a great upgrade on our travels on rural highways and areas with wind. On our trip last fall from the Oregon Coast to Northern Idaho was a good test of this system and made for more relaxed driving! Should be installed at the factory!



by:

So far so good on my 2015 Open Range 3X427BHS!

Overall, the old suspension system was just rusted and worn out and the tires were a maximum of 1" apart, which made me really nervous while pulling. It was tough to remove, but nothing a little WD-40 and some praying couldn't fix!

Installation was pretty straight forward using the included directions and [online video] University. Looking forward to seeing how it rides this weekend on our next trip.



by:

Installation went well, product fits perfectly. Test drove 5th wheel after install, it's absolutely a game changer! Love it!



by:

Put a set on a 35’ Open Range Light 5th wheel and greatly improved the towing experience and putting a second set on 41’Montana with hopes of the same results. Easy to install just give yourself plenty of time.



by:

Instructions where easy to follow and install went without incident. Only took the trailer for a short test drive after install so can't determine if trailer is riding better of rough roads.



by:

What a great product. The difference it made in our ride was outstanding. You almost forget you are towing a 35 ft 5th wheel behind you. We travel from West coast to East coast over all type roads and this product made such a difference. Sorry we didn't have it installed sooner. Definitely made a differance and would highly recommend to all Rv owners.



by:

great product, I'm a fabrication/designer, well thought out and much better than the original factory suspension. I also added structural kickers to the suspension hangers to help side load generated while turning and not relying on the hangers for strength. I also replaced the original factory u bolts, might as well have all new going back on



by:

This is a great product, it smothered out my fifth wheel nearly eliminating the chucking.


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Show More Reviews

See what our Experts say about this Roadmaster Trailer Leaf Spring Suspension

  • Will Roadmaster Comfort Ride Shock Absorbers Work on Trailer with Flipped Axles
    Yes, the Roadmaster Comfort Ride Add-On Kit # RM-2450-50 can be installed on trailers like yours that have the leaf springs mounted above the axles. I have actually attached an image from the complete installation manual that shows this orientation. This particular kit is designed to take care of the third axle in conjunction with the Roadmaster Comfort Ride Shock Absorbers # RM-2450. Both kits will give you everything you need for your triple axle Weekend Warrior. I have included a...
    view full answer...
    Image 1 for
  • Will the Roadmaster Comfort Ride Add-On Kit Work On Underslung Axles?
    Yes, there are single axle shock kits for underslung axles. This are typically used to add on shocks for the extra axle on triple axle trailers but they also work on single axle applications. These shocks will work on overslung and underslung axles. If you have a 2-3/8" diameter 3,500 lbs axle you will want the Roadmaster Comfort Ride Add-On Kit item # RM-2450-50. If you have a 3" diameter 5,200 lbs to 7,000 lbs axle you will need the Roadmaster Comfort Ride Add-On Kit item # RM-2460-50.
    view full answer...
  • Recommended Comfort Ride Shock Absorbers For Tandem Axle Trailer
    When it comes to installing The Roadmaster Comfort Ride Shock Absorbers # RM-2450-50 you can purchase 2 kits and it will work with your tandem axle. The shock absorbers have a bolt on installation. This kit will fit 2-3/8 inch axles. The shocks attach to the tie plate extensions and to upper brackets to help dampen movement of the axle. I attached a review video link below.
    view full answer...
  • Can the Add-On Roadmaster Comfort Ride Shock Kit Be Used On a Single Axle Trailer
    The Roadmaster Comfort Ride Shock Kit part # RM-2450-50 would indeed work just fine on a single axle trailer. The upper shock mounts gets attached directly to the trailer frame and then the lower shock mounts gets attached to the tie plate. There is no reason it would not work on a single axle trailer and I even called Roadmaster to confirm this for you.
    view full answer...
  • Shock Kit for Forest River Vengeance 5th Wheel
    If your 2016 Forest River Vengeance has tandem 2-3/8-inch axles you can use Roadmaster Comfort Ride Shock Absorber kit # RM-2450 which has nitrogen shocks to reduce the bounce from your leaf spring suspension. If it is a triple axle you will also use the Add-On Kit # RM-2450-50. If instead you have tandem 3-inch axles you can use kit # RM-2460 and add part # RM-2460-50 for a triple axle setup. Lippert kit # LC281281 is for single axle trailers.
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  • Replacement Lippert Screen Door Latch for RV
    Yes you can. Hopefully it's a part we carry or can get.
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  • Will the Lippert Bolt-On Shock Kit - 3,500-lb (2-3/8") Axle Work with Underslung Axles
    I do have an option for you but the Lippert Bolt-On Shock Kit w/ Heavy Duty Gas Shocks - 3,500-lb (2-3/8") Axle part # LC281255 is designed for overslung axles only. However, we do have a very similar kit which can be used on underslung axles, the Roadmaster Comfort Ride Add-On Kit 3,500-lb Axles part # RM-2450-50.
    view full answer...
  • Recommended Bolt-On Shock Mount Kit For A 2022 Jayco Jay Flight SLX 7 195RB
    The correct kit will depend on the weight capacity and diameter of your axle, but we definitely have a couple options for you to look at. From what I could find about your 2022 Jayco Jay Flight SLX 7 195RB, the GVWR will be 3,995 pounds, so I definitely recommend double checking the axle capacity before going with one of these. With that out of the way, first we have the Lippert Bolt-On Shock Kit w/ Heavy Duty Gas Shocks # LC281255 for a 3,500 pound 2-3/8" axle or # LC281281 for a 5,200...
    view full answer...
  • Is There a Shock Kit for a Trailer with 1-3/4" Diameter Axle
    I do have an option for you but none of the trailer shock kits available are designed to fit axles smaller than 3,500 lbs. That said, the Roadmaster Comfort Ride Add-On Kit part # RM-2450-50 should work as uses the existing u-bolts. The only option to increase ride quality is with the SumoSprings Trailer Helper Springs part # TSS-106-40 which would be a confirmed fit.
    view full answer...

Do you have a question about this Trailer Leaf Spring Suspension?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Dustin K
Video Edited:
Dustin K
Employee Wilson B
Updated by:
Wilson B
Employee Isabelle B
Updated by:
Isabelle B
Employee David F
Installed by:
David F
Employee Mike S
Written by:
Mike S

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