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Roadmaster Tow Dolly with Electric Brakes - 4,250 lbs

Roadmaster Tow Dolly with Electric Brakes - 4,250 lbs

Item # RM-2050-1
Our Price: $3,087.25
You Save: $38.44
Shipping Weight: 694 lbs
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Tow your vehicle without installing a tow bar or base plates. This tow dolly has a pivoting deck for easy maneuvering and electric brakes for safe stopping. Sliding ramps adjust side-to-side from 34" to 77" to fit most vehicles. Great Prices for the best trailers from Roadmaster. Roadmaster Tow Dolly with Electric Brakes - 4,250 lbs part number RM-2050-1 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (6)
  • Q & A (0)
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Roadmaster Trailers - RM-2050-1

  • Tow Dolly
  • Cars/Trucks/SUVs
  • 4250 lbs
  • Wheel Decks
  • Roadmaster
  • Powder Coated Steel
  • 8-1/2W x 12L Foot

Tow your vehicle without installing a tow bar or base plates. This tow dolly has a pivoting deck for easy maneuvering and electric brakes for safe stopping. Sliding ramps adjust side-to-side from 34" to 77" to fit most vehicles.


  • Tow dolly makes it easy to tow different vehicles without installing a tow bar and base plates
    • Ideal for cars with front-wheel-drive automatic transmissions
  • Towing deck keeps front wheels of towed vehicle up and off the ground
    • No need for a transmission lube pump system or driveshaft disconnect
  • Loading ramps slide from side-to-side to fit almost any vehicle
    • Laser-cut grooves provide extra traction for safe loading
  • Electric brakes make it safe and easy to stop while towing
    • Helps prevent wear and tear on your RV's brakes
    • Requires an electric brake controller (sold separately)
  • Deck platform swivels 9 degrees for tight cornering and easy maneuvering
  • Heavy-duty trailer tires let you tow heavy vehicles with ease
  • Accu-Lube hubs with grease fittings make it easy to grease the bearings
  • Adjustable wheel nets fit tires sizes that are up to 30" outer diameter x 11" wide
    • Includes ratchets
  • Brake lights with turn signals included
  • Powder-coated steel resists corrosion
  • Polyethylene fenders are durable and won't rust
  • 5-Way, 6-way, or 7-way connector (sold separately) required to activate dolly's brakes
  • Made in the USA
  • Limited Lifetime Warranty


  • Application:
    • Maximum vehicle weight: 4,250 lbs
    • Maximum tire size: 30" outer diameter x 11" wide
  • Overall length: 121"
  • Overall width: 102"
  • Usable width:
    • Narrow ramp position: 34" from inner tire tread to inner tire tread
    • Wide ramp position: 77" from outer tire tread to outer tire tread
  • Distance from end of coupler to pivot bolt in deck platform: 86-1/2"
  • Dolly weight: 545 lbs
  • Height at fenders: 29"
  • Trailer ball size: 2"
  • Recommended ball height: 18" - 20"
  • Tires: ST205-75R14 radial

When towing your vehicle with a tow bar, all 4 wheels are in contact with the ground. Certain vehicles - namely, those with front-wheel-drive automatic transmissions - require either a transmission lube pump system or a driveshaft disconnect when being flat towed. Using a tow dolly eliminates the need for those by lifting your vehicle's front wheels off the road. In addition, using a dolly eliminates the need for base plates that clutter the front of your towed car, difficult-to-install wiring, and a potentially expensive supplemental braking system. Also, if you want to tow multiple vehicles, this dolly is a great alternative to traditional flat towing because you don't have to purchase and install brackets and wiring for all of your cars.

Superior Design

Electric Brakes

The built-in electric brakes make it safe and easy to stop your vehicle while you're towing. This meets towing requirements, and also helps prevent the extra wear and tear on your RV's brakes that would otherwise occur because of the added towing weight. An electric brake controller (sold separately) must be purchased and mounted inside your RV to complete the installation. In addition, you will need a 6-way or 7-way trailer connector on the dolly so that it can receive the braking signal from your RV.

Universal Compatibility

The sliding ramps offer a 47" range of adjustment to ensure a precise fit for almost any vehicle you decide to tow. Also, the included wheel nets adjust to fit tires that are up to 30" outer diameter x 11" wide.

2050-1 Road Master RM3477 Tow Dolly with Electric Brakes - 4,250 lbs

Installation Details RM-2050-1 Installation instructions

Customer Reviews

Roadmaster Tow Dolly with Electric Brakes - 4,250 lbs - RM-2050-1

Average Customer Rating:  4.2 out of 5 stars   (6 Customer Reviews)

Tow your vehicle without installing a tow bar or base plates. This tow dolly has a pivoting deck for easy maneuvering and electric brakes for safe stopping. Sliding ramps adjust side-to-side from 34" to 77" to fit most vehicles.


This Roadmaster tow dolly was manufactured extremely well. The welds and metal grade are traditional made in America high-quality. Putting it together at home will take two people and the right tools-plan for the day accordingly. I used heat shrink wrap, high quality electrical tape and zip ties to control the wiring better. Follow the assembly directions carefully.This is one heavy product delivery. I towed our Ford Focus and it tows beautifully. Backing up can be challenging. When loading your vehicle you may have to get your front tires very close to the tip of the rack to make the fulcrum effect work. Once again this is a great product and worth the extra $.


Added a spare tire carrier and wheel jack (also available from eTrailer). With attention to all fasteners and tire pressure, tow dolly performed well. First trip out of the box was 4000 miles rt to Yellowstone NP, no problems.


Dolly seems fine. Still putting it together. But there was never any any type of tracking information provided. Just a note it was received on the 1st. It said it was shipped on the 5th and then nothing until we got a call for delivery on the 14th. I generally get some sort of tracking information which I much prefer.


It is a great trailer, very high quality. It is the first time I every used a car dolly, I was amazed how easy and quick you can load and unload your car. Trailer very stable when pulling.




See what our Experts say about this Roadmaster Trailers

  • Can a 2023 Hyundai Tucson Be Towed On a Car Dolly?
    A front wheel drive 2023 Hyundai Tucson can be safely towed on a Roadmaster Tow Dolly # RM-2050-1. If you have all wheel drive you will not be able to dolly tow as it will require all the wheels to be off the ground.
    view full answer...
  • Can 2015 Ford Fusions be Flat Towed
    I did some checking and it looks like the AWD versions of the 2015 Ford Fusion have to be towed on a trailer and the FWD versions can be towed but only with a tow dolly like the Roadmaster Tow Dolly part # RM-2050-1. Tow dollies aren't really too much more expensive than flat towing setups once you add up the cost of all the components and they are easily transferred to new vehicles as well unlike most flat towing setups.
    view full answer...
  • Availability of Vehicle Tow Dolly to Transport Vehicle
    The Roadmaster tow dolly kit # RM-2050-1 has electric brakes and lighting. Take a look at the attached video for more on this Roadmaster product. We recommend checking the owner's manual for the vehicle to ensure that it can safely be dolly towed. We do not offer full-size car hauler type trailers.
    view full answer...
  • Tow Dolly Recommendation to Tow 2013 Chevy Spark Behind Motorhome
    I did some checking and the only recommended way to tow a 2013 Chevy Spark behind a motorhome would be with a tow dolly like the Roadmaster Tow Dolly # RM-2050-1. There isn't a transmission lube pump available for your vehicle to anyone's knowledge. The advantage to a tow dolly is it's about the same price as a flat towing setup, takes much less install time, and easily transferred to future vehicles as well.
    view full answer...
  • Recommended Tow Dolly to Transport a 2018 Nissan Sentra
    A 2018 Nissan Sentra is a front wheel drive vehicle and has a CVT. This stands for continuaously variable transmission. According to the owners manual, you must place the drive wheels of this vehicle on a dolly to avoid damage. If you will be towing this vehicle, I recommend the Roadmaster Tow Dolly with Electric Brakes - 4,250 lbs # RM-2050-1. If your 2018 Nissan Sentra is a manual transmission, then you can flat tow it with four wheels down, but the automatic transmission models would...
    view full answer...
  • Is Tow Dolly Fender Clearance an Issue when Towing Vehicle in Tight Turn
    In normal driving you aren't going to turn too sharp and cause vehicle/fender clearance issues with the Roadmaster Tow Dolly with Electric Brakes # RM-2050-1. This is why it's important to make sure the steering wheel is locked too. If it's unlocked and the dolly can pivot with the front axle the fenders will hit the vehicle. Roadmaster states not to "turn too sharply" but basically that means that normal driving you'd be fine.
    view full answer...
  • Does The Roadmaster Tow Dolly With Electric Brakes RM-2050-1 Require Assembly?
    The Roadmaster Tow Dolly with Electric Brakes - 4,250 lbs # RM-2050-1 you were looking at does not come assembled that way it can better fit in a box to be shipped to you. The included instructions do a great job of going over how to assemble the tow dolly, but if you are not comfortable doing this kind of work a local automotive repair shop or trailer shop would be able to assemble it for you. I included a video review of the # RM-2050-1 and a link to the written instructions for you...
    view full answer...
  • Is Roadmaster Tow Dolly # RM-2050-1 Made in USA
    The Roadmaster Tow Dolly # RM-2050-1 that you referenced is entirely made in the USA so it would be a great option for you. I attached a review video for this as well.
    view full answer...
  • Tire Sizes Compatible with Roadmaster Tow Dollies RM-2050-1 and RM-2000-1
    The tow dolly products from Roadmaster that we offer, parts # RM-2050-1 and RM-2000-1 (Discontinued), will work with most vehicles whose wheels are between 12- and 16-inches in diameter. Oversized tires like those on many Wranglers are not compatible. My contact at Roadmaster confirmed the maximum TIRE size that will work with these dollies is 30-inches diameter x 11-inches width. Your tires are too large for these tow dollies.
    view full answer...
  • Can 2011 Kia Sorento Front Wheel Drive be Towed on Dolly
    I checked the owners manual of your 2011 Kia Sorento and the front wheel drive versions like your can be towed on a dolly like the Roadmaster part # RM-2050-1. You would just need to put the vehicle in park and have the steering wheel locked in the forward position.
    view full answer...
  • Will a 2018 Volkswagen GTI Make Contact with the Ramps on Tow Dolly RM-2050-1 While Driving
    The bump or dip in the road would have to be fairly severe for the ramps on tow dolly # RM-2050-1 to make contact with the bottom of your 2018 Volkswagen Golf. The ramps are not all that long and the dolly and vehicle will move up and down with the travel of the tow dolly suspension. If there is any contact it is unlikely that it would be forceful enough to damage anything on the vehicle. I understand though; it's a new vehicle and you want to be sure! I recommend taking a look at the...
    view full answer...
  • Alternative to Tow Bar for Flat Towing 2014 Jeep Wrangler
    Flat towing components are expensive. They have to be strong enough to be safe to use, easy enough to install and connect, and they require quite a bit of research and development to fit each vehicle. The other option is a tow dolly. They cost about the same when it's all said and done and don't require nearly the same install time. Plus you can use them with different vehicles without having to re-buy components. The part # RM-2050-1 would be a great option. For your vehicle you'd have...
    view full answer...
  • Does Odometer On 2015 Kia Soul Advance When On A Tow Dolly
    With the front wheels off the ground and on the tow dolly like part # RM-2050-1, the odometer will not advance. The speedometer is connected to the front wheels.
    view full answer...
  • Can The Roadmaster Tow Dolly with Electric Brakes RM-2050-1 Be Backed Up?
    You should NOT backup the Roadmaster Tow Dolly with Electric Brakes # RM-2050-1 hooked up to your tow vehicle. This is due to it being very easy to jack-knife and will damage the dolly and possibly your vehicle. This will not be covered under any sort of warranty. I included a vide of the # RM-2050-1 for you to take a look at.
    view full answer...
  • Towability of 2012 Honda Fit With Replacement 2013 Automatic Transmission
    When a vehicle cannot be flat-towed with a tow bar and all 4-wheels-down sometimes a tow dolly provides a solution. Roadmaster offers the # RM-2050-1 which uses a coupler to connect to a hitch ball; and has electric brakes. As for your 2012/2013 Honda Fit I'm afraid I cannot offer you any advice since a car being flat-towable or not depends on what the auto maker says. You will need to refer to a qualified authority, Honda, to address the modifications made to the transmission and for...
    view full answer...
  • Should Vehicle Towed on Tow Dolly be in Park or Neutral
    When flat towing a vehicle you need to first check the owners manual to see what the recommended procedure is for towing it on a tow dolly like the # RM-2050-1. In most cases you need to put the vehicle in park as most vehicles are front wheel drive but if the vehicle was rear wheel drive it would need to be in neutral if the vehicle could be towed with a dolly. Also the steering wheel will need to be locked out as well.
    view full answer...
  • 2011 Nissan Sentra be Towed on Tow Dolly
    I pulled up the owners manual for your 2011 Nissan Sentra and found that it states the vehicle can be towed with a tow dolly and the only instructions beyond that were to follow the instructions for the tow dolly manufacturer. The steering wheel needs to be locked so that the dolly can't pivot underneath the vehicle which would cause the fenders of it to hit the vehicle around corners. The Roadmaster Tow Dolly part # RM-2050-1 would be a great option for this. I attached a review video...
    view full answer...
  • Does Steering Wheel of Vehicle Need to Lock to Tow On Tow Dolly
    When towing a vehicle on a dolly like the part # RM-2050-1 that you referenced you need the steering wheel to be locked so that around corners the dolly fenders don't hit the door or fender of the vehicle. If your steering wheel doesn't lock when the key is off you can use your seat belt to lock it. Wrap the seat belt a couple times around the steering wheel and then buckle it in place. Now pull the seat belt all the way out so that as you let it retract it locks. Now your wheel will be locked.
    view full answer...
  • Will the Roadmaster Tow Dolly Work with Low Ground Clearance Vehicles
    I spoke to my contact at Roadmaster about loading vehicles with low ground clearance on the Roadmaster Tow Dolly with Electric Brakes part # RM-2050-1 and they said to go to U-Haul and try to load your vehicle on their tow dolly. The U-Haul tow dolly and Roadmaster tow dolly are very very similar in regards to clearance so if it will fit on the U-Haul tow dolly it will fit on the Roadmaster tow dolly. That said, they were not able to provide any ground clearance measurements to determine...
    view full answer...
  • Tongue Weight Of A Loaded Roadmaster Tow Dolly
    The tongue weight of the Roadmaster Tow Dolly with Electric Brakes - 4,250lbs # RM-2050-1 is only going to be roughly 80lbs. The weight of the car when loaded is going to be supported by the axle and not the tongue of the trailer so there will not be any additional weight.
    view full answer...
  • Is Trailer Breakaway Kit Required for Tow dolly
    You do ask a good question. A breakaway system is not required when using the Roadmaster Tow Dolly. And yes, there would definitely be a risk of the towed car jackknifing if the dolly brakes engaged after the trailer decoupling. The rear of the towed car could come around sideways and make a bad situation worse. My technical contact at Roadmaster confirmed that the above information is correct.
    view full answer...
  • Does Roadmaster Tow Dolly Come With One Or Two Wheel Nets Included
    The Roadmaster Tow Dolly with Self-Steering Wheels and Electric Brakes, part # RM-2050-1 comes with two adjustable wheel nets. The wheel nets included with the dolly will work with 12-inch to 16-inch tires and includes ratchets to secure the vehicle to the dolly. I have attached a link to a product review video for the tow dolly you can check out.
    view full answer...
  • Flat Towing 2008 Ford Escape FWD w/ Automatic Transmission
    According to the information I found on page 177 of an online copy of the 2008 Ford Escape owners manual, FWD models can be towed with a tow dolly only. AWD models must be trailered. Only manual transmission-equipped models can be flat towed, 4 wheels down. In your particular case, you will need to use a tow dolly to prevent damaging the transmission. We offer a Roadmaster Tow Dolly you might be interested in, part # RM-2050-1.
    view full answer...
  • Compatibility of Roadmaster Tow Dollys and Speed Bumps When Loaded
    The Roadmaster Tow Dolly with Electric Brakes and # RM-2050-1 will have a ground clearance of about 5 inches when loaded depending on the height of your hitch ball on your trailer. The range for this is 18-20 inches and if you are at 18 inches, you will have more clearance at the rear of the ramps. Depending on the height and depth of the speed bump, you may or may not have the clearance you seek.
    view full answer...

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