1. Trailer Leaf Spring Suspension
  2. Timbren
  3. Axle Replacement System
  4. Axles
  5. Universal Fit
  6. 2000 lbs
Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Regular Tires - 2,000 lbs

Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Regular Tires - 2,000 lbs

Item # A20RS545
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Our Price: $697.27
Trailer Leaf Spring Suspension
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Shipping Weight: 73 lbs
Timbren Trailer Leaf Spring Suspension - A20RS545
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The Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle, allowing for maximum ground clearance and a low deck height. Suspension units replace your existing axle and operate independently. Fits any frame width. Lowest Prices for the best trailer leaf spring suspension from Timbren. Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Regular Tires - 2,000 lbs part number A20RS545 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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Timbren Trailer Leaf Spring Suspension - A20RS545

  • Axle Replacement System
  • Axles
  • Universal Fit
  • 2000 lbs
  • 5 on 4-1/2 Inch Hub
  • Timbren

The Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle, allowing for maximum ground clearance and a low deck height. Suspension units replace your existing axle and operate independently. Fits any frame width.


  • Suspension system provides a safe, smooth, quiet ride for your trailer
    • 2 Separate units replace your existing axle
  • AEON progressive-rate main springs absorb road shock and support trailer's load
    • Deliver a smooth, stable ride, regardless of load size
    • Compress and become stiffer as load increases, boosting spring strength
  • Rebound springs act as return devices to minimize rattle and bottoming out
    • Create constant pressure on the arm, so the suspension is never completely relaxed
  • 2 Independent units can eliminate the need for a thru axle
    • Increase ground clearance
    • Lower deck height for easier loading and unloading
    • Reduce roll during cornering
    • Fit any trailer width
  • Built-in camber and toe-in help your trailer to track straight, reducing wear on the tires
  • Straight, EZ Lube spindles with hubs accept any 5-bolt wheels with regular tires
    • EZ Lube feature makes it easy to grease bearings without removing the hub
    • Spindles can be easily removed from units for simple replacement if damaged
    • Bearings, races and seals are included with hub
  • Heavy-duty steel construction with black powder coat finish resists wear and corrosion
  • Easy to install and align
    • Bolt or weld to your trailer's frame


  • Fits: 1-axle and 2-axle trailers that use regular 13" tires or smaller
    • Not recommended for triple-axle applications
  • Bolt pattern: 5 on 4-1/2"
  • Weight capacity: 2,000 lbs
  • Quantity: 2 suspension units with hubs
  • Spindle/Hub compatibility:
    • Bearings: L44649 inner/outer
    • Races: L44610 inner/outer
    • Seal: 10-60
  • 3-Year limited warranty

Note: The Timbren Axle-Less suspension system may require additional support on your trailer. If your trailer does not have a crossmember above the spot where you want to install the Timbren system, you may need to reinforce the frame. You can accomplish this three ways. First, you can retrofit the trailer with a crossmember. Second, you can build out the trailer frame. Third, you can use standard, 2-inch steel tubing to connect the 2 Timbren suspensions together using the built-in square hole on each unit.

Ground Clearance

Ride on rubber with Timbren's Axle-Less trailer suspension system. This one-of-a-kind suspension consists of two separate units, each containing rugged steel arms and two strong, hollow rubber springs. Overall, the system safely and effectively absorbs road shock, minimizes trailer bounce and rattle - regardless of load size - and helps to protect your trailer's components and cargo. Built-in camber and toe-in keep your trailer tracking straight to minimize tire wear. Integrated hangers attach to your trailer's frame. And 2-inch holes make it easy to reinforce your trailer's frame by adding standard, 2-inch-square steel tubing (if needed).

The Axle-Less independent suspension system replaces your trailer's existing leaf spring suspension and can eliminate the need for an axle. The independent action of the suspension reduces roll when your trailer is cornering and allows you to maximize ground clearance and minimize deck height. Your trailer can have the same side-to-side clearance as your tow vehicle. And the low deck height makes it easy to load cargo from either the rear or the side.

Because you're riding on rubber, your trailer will ride smoothly and comfortably, whether you're navigating rocky terrain or highway asphalt.

Timbren Axle-Less Suspension Parts


  1. The AEON progressive-rate main spring supports the weight of your trailer and cargo and easily absorbs road shock. It is constructed of heavy-duty, hollow rubber.
  2. The rebound spring minimizes trailer bounce, rattle and bottoming out. It keeps the suspension under constant tension and ensures that the main spring compresses and expands in a controlled fashion. And it delivers a smooth, stable ride - regardless of how much cargo is on the trailer.
  3. The trailing arm and integrated hanger attach the suspension to the side and bottom of the trailer frame.
  4. The control arm carries the spindle and the hub. It pivots on strong, long-lasting urethane bushings that never require lubrication.
  5. The EZ lube spindle is simple to grease. If damaged, it can be removed and replaced, saving you both time and money.
  6. The hub accepts any 5-bolt wheel that has a regular tire.
  7. The built-in square hole accepts standard 2-inch tubing. If there is no crossmember above the suspension, you can easily add support to your trailer's frame by inserting 2-inch steel tubing through the hole on each suspension unit and then bolting the tubing into place.

Timbren Axle-Less Suspension versus Leaf Springs

Leaf Spring Example

The Axle-Less suspension's progressive spring is a definitive upgrade over leaf springs. Although leaf springs deliver a stable ride when supporting a load, a trailer with leaf springs will bounce and rattle when it's empty or supporting a light or off-center load. On the other hand, your trailer can bottom out on bumpy roads if the load is too heavy. The AEON progressive-rate springs of the Axle-Less suspension always deliver the same reliable performance, no matter the load size. As more weight is added to the trailer, the springs compress and become stiffer, offering more support for heavy loads. And because they rebound more slowly than leaf springs, the AEON springs do a better job of absorbing road shock, thereby keeping your trailer from bouncing and rattling when you're carrying a light load. So with this versatile system you will enjoy a smooth ride whether you're towing an empty trailer or a hefty load.

Unlike leaf springs, Timbren's Axle-Less suspension units operate independently of one another. Each spring activates only when needed. This reduces roll and delivers top-notch performance, even when you're hauling off-center loads. When your trailer with leaf springs takes a turn, one side of the suspension compresses and takes on more weight, and the other side becomes looser and bounces. This causes rattle and can make the trailer lean to one side. But when your trailer with the Axle-Less suspension takes a turn, one side compresses and becomes more rigid to absorb the weight, and the other side expands to normal height to help steady the load and minimize bounce and rattle. The load stays better balanced, even if it is off-center.

Timbren Axle-Less Suspension versus Torsion Axles

Torsion Axle Example

Timbren's Axle-Less trailer suspension system is a great alternative to torsion axles. While both systems allow either side of the trailer's suspension to operate independently, only Axle-Less suspensions are actually separate units. Torsion axles still require a bar that spans the bottom of your trailer, whereas Timbren's system can eliminate the need for a thru axle - giving you the same amount of ground clearance from the front of your trailer to the rear. It also allows Axle-Less suspensions to fit any trailer width - unlike torsion axles, which have to be fitted to an exact frame width.

Axle-Less suspensions operate in a smoother, less stressful manner than torsion axles. Torsion axles use a twisting motion, where the bar inside the axle tube rolls against rubber cords or a rubber wall to create compression and resistance. The up-and-down motion of the main spring and the side-to-side motion of the rebound spring in Timbren's Axle-Less suspension work together to provide smooth, consistent compression - with no twisting - that results in a better ride and less stress on the suspension's components.

Installing the Timbren Axle-Less Suspension

Whether you are building a trailer or retrofitting your existing trailer with the Axle-Less system, you must make certain that the trailer's frame is both perfectly square and sturdy enough to support a heavy load without the aid of a thru axle.

Install Option 1

There are three ways to install the Axle-Less suspension. The easiest method, which is recommended if you are replacing axles on your trailer, is to install a piece of 2-inch-square tubing (sold separately - available at most weld shops) through the integrated hole in the Axle-Less suspension. Then all you need to do is bolt the suspension to the side of the trailer's frame with three bolts (not included).

Install Option 2

The second option for installation is to fabricate an inboard extension plate that attaches the trailer's frame to the Axle-Less suspension.

Install Option 3

The third method of installation is to bolt the Axle-Less suspension's hanger to the trailer's frame and to an existing crossmember that is in the area where you want to install the suspension.

With both the second and third options, you must use three bolts to attach the suspension to the side of the frame. And you also have to use two or three bolts to attach the suspension to the bottom of the frame extension, or crossmember. Both the second and third methods of installation will eliminate the need for a thru axle and provide the most clearance.

Measuring Diagram

Timbren's Axle-Less suspension units should be installed directly across from one another. Before mounting the units, measure back from the coupler and mark the frame to make sure that the two distance measurements (A and B) are within 1/8 inch of each other. Then you can drill holes through the frame and attach the hangers with Grade-5, half-inch bolts (not included).

Dimensions of the Timbren Axle-Less Suspension

Dimensions 1

Dimensions 2

Dimensions 3
Dimensions 4

A20RS545 Axleless Trailer Suspension System by Timbren - Hubs with 5 Studs on 4-1/2" Bolt Circle - Regular Tires - 2000 lbs

ASR2000S01 Timbren Axle-Less 2000S, P022 Outboard Arm Regular Spindle

88545_2 2500 lb Idler Hubs - 545 1/2" Stud - Qty 2

Customer Reviews

Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Regular Tires - 2,000 lbs - A20RS545

Average Customer Rating:  4.7 out of 5 stars   (190 Customer Reviews)

The Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle, allowing for maximum ground clearance and a low deck height. Suspension units replace your existing axle and operate independently. Fits any frame width.

- A20RS545

I used these axles in a different way than most would. I needed a trailer that was small, could handle tight switch-backs, carry 600 lbs and be light. I had this idea and as a retired design engineer I saw a great possibility in this axle. I have made four of these trailers now, one as a camp trailer, 2 for trail work for State Parks and one as a utility trailer.

Really cool work!
-- Etrailer Expert Sierra K - 07/07/2021

- A20RS545

This suspension system did EXACTLY what I wanted. I replaced the leaf springs, axle/hubs on my small trailer. The new suspension improved the capacity, lowered the bed 4+inches, improved ground clearance and allowed me to rebalance the trailer all WITHOUT having to have any welding done. Everything needs to be measured very exactly and the alignment technique is fairly cumbersome and takes a bit of time. In the end, I have a quiet, steady, strong, low riding trailer. What more could you ask for

- A20RS545

These units install easily, are well made, and perform great! The trailer doesn't bounce around like you see a lot of trailers do while traveling down a bumpy road. I traveled some unpaved roads with no issues. I am certainly glad I went axleless. I installed with 15" tires. Problem is I didn't go big enough. I intended to install on an existing trailer that I had. Changed my mind and built a new trailer. The new trailer came in heavier than I had planned. 2k pound capacity is now too small. I have to watch what I load the trailer with so I don't over load the suspension. I intend on buying the 3500 pound units when I have the money.

- A20RS545

So far great! I used one of the Timbren Axles in a mountain trail camp/SAR trailer I just finished building. I have only had the trailer on roads because all the trails I want to try it on are still under snow...but it is melting fast. I have included a couple of photos.

- A20RS545

Installed these axels on Custum boat trailer to fit on top of our Jeep... worked perfectly Thanks

- A20RS545

This was delivered much later than promised when ordered. It arrived in a damaged package and hardware was missing.

Thank you for bringing that to our attention. Our Customer Service team should be reaching out to you in the near future.
-- Etrailer Expert Brooke M - 08/31/2021

- A20RS545

not happy with one lug nut missing threads!!! but I think they also could supply the wedge plate! the horizontal holes never change and the lower vertical should be slots. for the money I shouldn't have to make a plate.

- A20RS545

I used this to beef up a foldable trailer that had a cheap suspension and tires. It worked great!

- A20RS545

I am not a mechanic so Brandi was real helpful. Had to get some professional help to remove the old suspension and install the new suspension. The only drawback we ran into was the spindle did not extend out far enough to mount the tires in the normal way. We had to put the tires on backwards. It all worked out beautifully. Towed the trailer for over 1700 miles without any problems. Brandi was delightful to talk with and very patient with me. Her help was most appreciated. Sorry, I didn't take any pictures.

- A20RS545

easy install and worked perfectly for my application

- A20RS545

Only axle I could find to fit my application. Very cool product. Fast delivery. Easy instructions

- A20RS545

I wanted to give a lot star, but I spent three months because you missed parts of me a few times. Anyway it is very good for the product.

- A20RS545

This is my favorite suspension system in all the world! Rides like an absolute dream. Easy to set up and install. Works on any trailer frame size. One thing to know: You don't get the ride height you get with a standard leaf spring suspension. Even with 15-inch wheels, the ride height is pretty low - maybe 10-12 inches of ground clearance to the bottom of the main trailer frame. If you need more ride height, get the lifted version. A few areas of possible improvement? It's difficult to bolt the suspension unit to a crossmember using the middle bolted hole, which uses a tacked-on weld nut. You have zero room for error when drilling the hole through your cross member, and you can't really use the suspension as a template. Hmmm ... also, the hanger plate mounting holes are positioned 1-inch from the bottom of the trailer frame. That makes it very difficult, since I use channel side rails, to use standard 1/2-inch USS or SAE washers on the backside. There isn't room. Just an extra 1/4 of a inch would allow me to use standard washers underneath the nuts on a channel frame. Nitpicking aside, it's amazing.

- A20RS545

etrailer does not provide sufficient information for a customer to correctly choose wheels / tires for this item, so while the suspension looks great and I'm looking forward to using it, I ended up with the wrong wheels/tires: specifically, this will NOT work with 14" zero offset rims (which is almost all of them). I got an RA on the wheels which guess what I can't use it because the only reason I know they don't work is I mounted them so I've wasted DAYS of my time with no progress on my trailer and STILL do not have a confirmed answer that if I buy X rim it will work with these despite writing to the person who helped me place the order days ago and no answer. This is really not what I expected I'm pretty wildly unhappy at being ignored.

- A20RS545

I pull my Sea Doo GTX 300 (that means they are pretty heavy!) PWC's from Wisconsin to Florida twice a year. That said, this last trip to Florida caused me to bend the original straight axle on my trailer. Not fun. I ordered the Timbress Axle -less axles, and after a few hours of work on the trailer, they were installed, square and true. I immediately put the Sea Doos on the trailer to see how the trailer performs with the new axle-less system on it. one word: FANTASTIC!!!! I guarantee if I have to fix this issue again, I will use the exact same product. It is awesome!

- A20RS545

This is my first time in building something like this

- A20RS545

The product was in perfect condition when it arrived. Please extend a sincere "Thank You" to who ever prepared my order for shipment. The axle systems are heavy and bulky but were superbly packaged. Not even a scratch. all the parts arrived with nothing missing. There was even nice bunch of shims. No one ever sends enough shims. If they are needed I won't have to stop and get more. Very good workmanship on all axle parts and assemblies. The only problem I had was communication with you. I received no info from you about my order after the initial automatic one when I placed the order on the web site. A long time went by and nothing. No updates, confirmation, explanations, nothing. I had to use the "contact" email on your web site. That took a day or so. You folks were very polite and professional, thank you, but during these times it's hard to know if things working as expected. Keep in touch. Thanks. I haven't used the axles yet. Sorry no pictures.

- A20RS545

Received my order. Quality is very good. Intend to use on fishing shanty frame. I thought that the wire I ordered was 4-wire round, not flat. That was my preference but I guess I should have inquired prior to ordering. I feel that the quality of the flat wire could be better. All other products are very nice and I am happy. Service was excellent. Thank you

- A20RS545

How can I discourage you from buying this product? Almost a $500 item, yet they can't supply you the 6 bolts to attach it to the frame. Get to the hub assembly, and another simple, but hard to find item a "tang washer" is not supplied. The 4 bolts to attach the square tubing is also not supplied, but expected that because they were very clear the tubing was not included. Of course, I expect this review will never be seen.

- A20RS545

I bought these to replace an axle on an older trailer that I could not buy a replacement axle from the manufacturer. They are well made, a correct fit and the Customer service could not be better. Due to the careless handling of the shipper, a component of the product was damaged. With a simple phone call, I was able to have a replacement part shipped out that day. I would recommend everyone to shop here before going to their manufacturer!

- A20RS545

It was good til I got to the backup angle. I'm not a machinist nor to I have their tools or brains. For me to drill 5 duplicate holes in a piece of angle is next to impossible.

- A20RS545

Built very rugged. I am glad this is available because all the 2K axles I found were not wide enough for my application. This setup allowed me to keep expenses down and build the trailer I wanted.

- A20RS545

Amazing fast delivery. I wasn’t prepared, lol!

- A20RS545

Just received in a very timely manner. Build quality looks good. Haven't installed them yet but looks pretty simple, will repost after install. The only bad thing I have to say so far is that I wished which is personal opinion is that they would use grade 8 bolts instead grade 5.

- A20RS545

Got these today and installed them on a homemade trailer. The ride is excellent and they appear to be very well built. Only time will tell of their durability but I suspect they will exceed my expectations. Perfect for the DIY guy.

Show More Reviews

Ask the Experts about this Timbren Trailer Leaf Spring Suspension

  • Timbren Axle Less Kit with 5 Lug Bolt Pattern that Can be Used with 15 inch Wheel
    Since you want to use a larger wheel size you'd need to go with the higher rated Timbren Axle Less kit part # A35RS545. The wheel flange on the smaller hubs of the other kit can't accommodate the larger wheel diameters.
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  • Can a Larger Axle be Used in Place of Smaller One
    We have an option for you, though a larger axle is not something that you will be able to use because not only will the wheels stick out, but the spring seats will be in the wrong place. The only option we have is theTimbren Axle-Less Suspension System, which are simply bolted or welded so you do not have to worry about finding an axle that meets any specific measurements. You simply need to find the one that meets the weight requirement you need, such as the Timbren Axle-Less Trailer...
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  • Replacement 1-1/2 Inch Square Axle for a Boat Trailer
    I do have some options for you but none of our trailer axles match the exact measurements that you provided. Therefore, the best option we have for you would be to switch to an axle less system like the Timbren Axle-Less Trailer Suspension System part # A20RS545 which will replace the axle, leaf springs, and leaf spring hangers in light of a rubber suspension system that works to absorb road shock and support the trailers load better than standard leaf springs. The other option you...
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  • Can Timbren Axle-less Suspension be Used as a Tandem Axle Set Up
    Yes, you can use Timbren Axle-Less system # A20RS545 in a tandem axle set up. You would need 2 kits though. Tandem applications will work out fine but that is the maximum recommended by Timbren because if a third system was used it would cause the front ones to drag more on turns. So tandem, good to go, 3 or more, won't work.
    view full answer...
  • Can Timbren Axle-Less Trailer Suspension System Be Welded To Trailer For Installation
    The Timbren Axle-Less Trailer Suspension System with Hubs, part # A20RS545 can be bolted or welded to the trailer for installation. This system includes the bearings, races, and seals with the hub, and it has a 5 on 4-1/2 bolt pattern.
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  • Timbren Axle Less System for Trailer Using Wheels with Positive Offset
    It's typically not recommended to use spacers on trailer wheel applications so your best option would be the Timbren Heavy-Duty Axle-Less Trailer Suspension # ASR2KHDS02 which was designed for wider tires so it has a greater distance between the hub mounting surface and the trailer frame, this prevents you from needing spacers. If you check out the attached picture you can see that there would be 8-1/2 inches there which would be more than enough. The wheel needs to be open in the center...
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    Image 1 for
  • Recommended Timbren Axle-less, Trailer Brakes, and Ark Articulating Coupler For Overlanding Trailer
    I would be happy to recommend some components for you, but there is no disc brake kit currently available with the 5 on 5" bolt pattern, and none of the 5 on 5" bolt pattern hubs that are available will work with 17" wheels. You will want to stick with a 15" wheel as that is the largest wheel that will work without any issues. Starting with the Timbren kit I recommend the Timbren Axle-Less Trailer Suspension System - Spindle w/Brake Flange - Off-Road Tires - 2,200 lbs # ASR1THDS02. For...
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  • Why Can't a Timbren Axle-Less Kit be Used as a Second Axle on Boat Trailer
    It's not recommended to do that as the height would be nearly impossible to match for the Axle-Less to your current axle which would create problems as one axle would bear more weight than the other when the trailer is level. Best option would be to replace both axles with an Axle-Less kit like the # A20RS545.
    view full answer...
  • Availability of 5 on 5" Bolt Pattern Hubs for Timbren 2,000 Pound Axle-Less System
    Trailer hubs are definitely designed to fit specific spindles, so not every hub will work with every spindle. Most of the fit has to do with the size of the inner bearing, outer bearing, and grease seal on the hub, as these components are what will fit around the various outer diameters of the spindle. The Timbren Axle-Less Trailer Suspension System # A20RS545 features spindles that are designed to accept hubs that use the # L44649 (1.063" inner diameter) inner and outer bearing and...
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  • Using Timbren Axle-Less Suspension System to Replace Torsion Axle on 1985 StarCraft Tent Trailer
    It sounds like your camper uses a torsion axle. The Timbren axle-less suspension system very well might be a great solution for you. In order to determine which particular part number you need, I'll need to know your axle capacity. This information might be found on the axle itself or on the trailer VIN plate. If not, I can figure it out if you'd reply with the reference numbers from your inner and outer wheel bearings. I'd also need to know if your current axle has brakes and what the...
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  • Max Tire Height and Width for Use with a Timbren Offroad Axle-Less Trailer Suspension System
    Since you are building an off-road trailer you would want the Timbren Heavy-Duty Axle-Less Trailer Suspension # ASR2KHDS02. This comes with a longer spindle to let you use a wider wheel and tire than the Timbren Axle-Less Trailer Suspension System with Hubs # A20RS545 that you referenced. The max height of the wheel and tire would only be limited by a fender and where you chose to install it. For a max width you have plenty of room there to. From the hub face to the trailer frame you...
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  • Clearance Between Tire and Frame With Timbren Axle-Less System
    As an example, tire and wheel combination # LHAW121 uses a 5" wide wheel and 205/75-15 tire, which is 8.1" wide. If the Timbren Timbren Axle-Less Trailer Suspension System # A20RS545 has 4-7/8" of space between the frame and hub face, that would leave roughly 4/5 of an inch in space between the tire and frame, so your tires would not be rubbing against the frame if that's what you were using.
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  • Axle Upgrade For Ironton 5 X 8 Utility Trailer
    You may be able to use the Dexter Trailer Axle with Idler Hubs # 20545I-ST-72-15 on your Ironton 5x8 trailer. This axle has as spring center to spring center measurement of 58" and a hub face to tub face of 72". You will need to have new Spring Seat # TRSS175 welded on to the axle as your current axle is an over slung axle and this axle is designed to be under slung. If that will work on the trailer you will need the CE Smith U-Bolt Kit # CE23000 to mount the axle as the factory axle is...
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  • What is the Difference Between Regular and Off Road Trailer Tires for Timbren Axleless Suspension
    Off road tires tend to have a more aggressive tread pattern and can be wider/taller. Generally speaking most all trailer tires are regular tires. There are some turf tires and off road tires out there that would fall into this category but if you are not sure I would need to know the tire brand and model to determine which axleless suspension system would work best. I have included a couple of dimensional drawings that show the relevant measurements that you can compare with your tires...
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    Image 1 for Image 2 for
  • Recommendation to Upgrade Axle and Hubs on Northern Hardware Trailer
    To upgrade the axle and hubs on your Northern Hardware Trailer, I recommend looking at an Axle-Less System like the Timbren # A20RS545. This suspension system will provide you with a smooth, quiet, and safe ride and can completely eliminate the need for an axle. It is designed to fit any frame width and features straight, EZ Lube spindles for easy bearing lubrication. This particular system is rated for 2,000 pounds and includes idler hubs with a 5 on 4-1/2 inch bolt pattern. They will...
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  • Components Needed To Build A Utility Trailer
    Building a trailer can be pretty involved. You need to consider the materials you want to use and the weight capacity of the trailer when you build it. You said you have access to a welding shop. You will need to design the trailer frame and decide what kind of tongue you plan on using. We do have several of the components you can use. For a suspension system I recommend using an axle-less idler hub system like part # A20RS545. This system has a 2,000 lb weight capacity and includes...
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  • What Type of Tires to Use on Home-Built Off-Road Trailer
    The term regular tires when used in the context of Timbren axle-less suspension systems like # A20RS545 distinguishes this kit from one that can be used with off-road trailer wheels/tires, such as kit # ASR1THDS03. Do please note that for a fabricated trailer you will want to use only trailer wheels and special trailer tires. Passenger vehicle wheels and tires are built differently and are not suitable for use on a trailer. Trailer wheels usually have different offset (the distance they...
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  • Are Computer Aided Design (CAD) Files Available for Timbren Trailer Axle-less Kit A20RS545
    Timbren does not publish CAD drawings for their suspension products like # A20RS545 but I do have a dimensional drawing that I have linked for you. This covers key dimensions and mounting hole spacing. If you visit the product page for this item and scroll down you'll find other helpful diagrams that will aid your installation. Timbren's Axle-Less suspension units should be installed directly across from one another. Before mounting the units, measure back from the coupler and mark the...
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    Image 1 for
  • Timbren Axle-Less System with Aluminum Wheels and Radial Tire Compatiblity
    The Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Regular Tires - 2,000 lbs # A20RS545 is compatible with the Aluminum Jaguar Trailer Wheel - 15" x 5" Rim - 5 on 4-1/2 - Gunmetal Gray # LHSJ301G. I recommend using the Lionshead Trailer Wheel Lug Nut - 1/2"-20 - Stainless Steel - Qty 1 # LHLR103 and wheel locks # RG01-150. I also recommend the Trailer Wheel Center Cap, 3.19" Pilot Size # 319EZ for a finished look. You can use the rubber valve stem # AM20903 or the...
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  • Weight Capacity of Timbren Axle-Less Suspension System # A20RS545
    Each unit (right and left side of trailer) is designed to replace one 2000 lb axle. This means that the total weight applied to the axle-less system (trailer weight plus the weight of the load carried in the trailer) cannot exceed 2000 lbs. Timbren makes axle-less systems designed to replace up to a 3,500 lb axle. You can see other systems we offer by clicking the provided link.
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  • How Much Does the Suspension Travel on Timbren Axle-Less Suspension System # A20RS545
    The deflection or amount of travel for the Timbren Axle-Less Suspension System # A20RS545 is 1-3/4 inches. The pictures on the product page will be updated.
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  • Replacement Hub Assembly for Timbren Axle-Less Suspension System # A20RS545
    To replace the hub assemblies on the Timbren Axle-Less Trailer Suspension System # A20RS545 the Dexter Trailer Idler Hub # 8-258-5UC1-EZ will work perfectly. This 2,000 pound hub includes all the bearings, races, and seal and it's completely compatible with the spindles on the Timbren Axle-Less System. We do also have the bearings, races, and seals used on these hubs available separately. For the inner and outer bearings you would need part # L44649 and for the inner/outer races you...
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  • Timbren Axle-Less Trailer Suspension Installation on 1970s Boler Fiberglass Trailer
    One of the nicest features of these kits is their universality; they can be installed properly for varying applications, including on smaller travel trailers like your Vintage Boler. One example of a customer install is shown in the linked photo. We do not have any customers who've shared their specific experience installing a Timbren axle-less trailer suspension such as # A20RS545 on a 70's fiberglass Boler, but that certainly does not mean no one has done it. For your application...
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  • Timbren Axle-Less Suspension for a Home Made Tear Drop Trailer Build
    The Timbren Axle-less suspension system that is going to work best for you depends on the capacity you need. But it sounds like you are looking for a straight spindle and not a drop spindle so that narrows things down some. For a 3,500 pound capacity we have # A35RS545. Hubs are included. Also for 3,500 pounds we have # A35RS545E which includes hub and drum assemblies for electric brakes. For a 2,000 pound capacity we have # A20RS545. EZ lube hubs are included. All of the included...
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  • Adding Electric Brakes to Northern Tool UltraTow 5x8 Aluminum Frame Trailer
    Because the trailer doesn't have a traditional size, in order to upgrade to trailer brakes you will need to have a welder install the Brake Mounting Flange for 1-3/4" Round Trailer Axles - 2K # 4-34 which will require the proper jig to ensure placement and alignment. Then you will need to measure your spindles to help get the correct replacement hubs to add the integrated drum. I've attached a photo of the locations to measure with a digital caliper like # PTW80157 to assist in getting...
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  • Axle Solution for Ironton 5x8 Trailer with Higher Speed Rating
    Ironton does require that their trailers like the 5 by 8 that you have stay under 45 mph. This is most likely related to the hubs that are on the trailer and the tires but it's hard to say for sure since we are not affiliated with them. If you went with the Timbren Axle Less kit part # A20RS545 that you referenced and a set of tires/wheels with a higher speed rating though you would likely have the ability to go faster. For a wheel and tire combo that will fit the Timbren and have an...
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  • Recommended Axle Replacement for Jayco Eagle 12 UDK
    For your Jayco Eagle 12 UDK trailer, we only have the Timbren Axle-Less Suspension systems as replacements for your torsion axles whether they are the Dexter Torflex or not. These simply mount to your frame and use a 2 inch square tube (not included) between the assemblies into the integrated holes for supports. The Aeon rubber is your suspension system and works very well to replace torsion axles and will help keep tire wear to a minimum. I recommend the Timbren Axle-Less Trailer...
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