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Roadmaster Dual Hitch Receiver Adapter with 2" or 6" Drop/Rise
Roadmaster

Roadmaster Dual Hitch Receiver Adapter with 2" or 6" Drop/Rise

Part Number: RM-077-6
In Stock
$236.23
Retail:$325.94
You Save: $89.71
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Add a bike carrier or cargo carrier with the dual hitch receiver. 1-800-940-8924 to order Roadmaster hitch adapters part number RM-077-6 or order online at etrailer.com. Free expert support on all Roadmaster products. Great prices and Fastest Shipping for Roadmaster Dual Hitch Receiver Adapter with 2" or 6" Drop/Rise. Hitch Adapters reviews from real customers.
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Roadmaster Hitch Adapters - RM-077-6

  • Dual Hitch Adapter
  • Fits 2 Inch Hitch
  • Bike Racks
  • Cargo Carriers
  • 10000 lbs
  • 2 Inch Rise/Drop
  • 6 Inch Rise/Drop
  • Roadmaster

Add a bike carrier or cargo carrier with the dual hitch receiver.


Features:

  • Allows you to use a hitch-mounted bike rack or cargo carrier while towing your vehicle
  • Constructed of sturdy steel
  • Resists rust and corrosion with durable powder coat finish
  • Requires pin and clip or hitch lock (sold separately)


Specs:

  • Application: 2" x 2" trailer hitches
    • Dual receivers have 2" x 2" openings
  • Drop: 2" or 6"
  • Rise: 2" or 6"
  • Gross towing weight: 10,000 lbs
  • Tongue weight: 400 lbs
  • Limited Lifetime Warranty


Dimensions of hitch adapter

Notes:

  • Not for use when towing a trailer.
  • Might not work with a bike rack that has a shank with sharply square edges.


077-6 Road Master Dual Hitch Receiver Adapter, 6" or 2" Rise/Drop

Installation Details RM-077-6 Installation instructions



Customer Satisfaction Score:

Ratings & Reviews

4.8

996 reviews
Review sort icon
Add a bike carrier or cargo carrier with the dual hitch receiver.

by:

Worked out well. Carried 2 bikes and a Honda P/U, on an Acme tow dolly, from Michigan to Florida. Used on my Winnibago 25', Navion motor home on a MB Sprinter chassis. No problems.



by:

Another Roadmaster quality product, amazed as how it has resisted signs of rust or corrosion from being exposed to the elements. Part looks as good as new.



by:

This seems sturdy and fits, but it is a slightly loose fitting. A better design would enable you to tighten the fit.

Katrina D. profile picture

Katrina D.

1/18/2024

If you are having issues with it sitting tight, you could always use an anti-rattle hitch lock, like part # RM-061 to reduce the loose fit.



by:

This is great. The only issue was I had to buy a new hitch and extender.. Mine was square with square corners. The tubing in this was rounded in the corners.



by:

This hitch adapter is just what I needed to carry bikes and flat tow my car. Etrailer is very helpful as carry what I need.



by:

Product arrived as described and expected. Product has great label.



by:

This product doesn’t accommodate my bicycle rack but does for my tow bar. They are both 2”. The bike rack fits in my motorhome receiver and my old drop down hitch adapter that I purchased from Roadmaster. I had to grind the corners down a little off my 2” bike rack male 2” tube. I’m sure that I can’t be the only person that has encountered this. Other than that I like it. Thank you



by:

Seems to be very well made and shipping was right on the date.



by:

Fast delivery of part and works very nice. Still need to see how it travels but stationary it looks great!



by:

Hitch works great have had no problems



by:

Bruce profile picture

Bruce

3/14/2022

Great



by:

I use this for towing my TOAD and flipped up using the upper one for my E-bike rack. After 1 year, this dual receiver has worked flawlessly and is very strong. I would recommend it to anyone who needs something along this line. Lastly using a hitch clamp / anti wobble device will take any play out the receiver.



by:

This is a great and heavy built hitch adapter. My only issue is that if given only 1/2 inch more distance between the two adapters it would help a lot. I cannot open up buy Blue Ox Towing bars out of the stow away position in the lower receiver while my 4 bike Thule bike carrier is installed on the upper reciever. Quite a nuisance. Otherwise, a GREAT product.



by:

The adapter worked as advertised. Used for 8500 miles on RV trip with two electric bikes and no issues.



by:

Didn't fit my 4runner receiver, it's basically a door stop at this point.



by:

A very well built and sturdy hitch. Allows us to attach our flat tow car and bicycle rack on our motorhome.

Rod profile picture

Rod

3/24/2025

One year followup and no change to original assessment. Well worth the time and money to install

Jameson C. profile picture
Etrailer Expert

Jameson C.

3/24/2025

@Rod Nice, has it gone with you on some good trips?


by:

Great hitch. Exactly what it says in the description. Works perfect for my Blue ox tow bar and my 1UP bike rack.



by:

This adapter design was exactly what I was looking for. I often carry 4 or more bikes with my Sylvan GO. The pictures show how I configured my setup. Its perfect!!! And yes, I have to be a little careful on really tight turns but its never been an issue. Thank you George and the etrailer team.



by:

Haven't used it yet but it's a work of art!

Tim profile picture

Tim

3/27/2026

Works great!

Gwendolyn Y. profile picture
Etrailer Expert

Gwendolyn Y.

3/27/2026

@Tim Love to hear it, Tim! :)


by:

We bought this hitch along with a bike rack. After a year of use we are still travelling across North America. Awesome product! Easy and totally easy to use.

Delivery was fast and efficient.



by:

Quality hitch. Quick shipping. Looks a little close to the motorhome bumper



by:

Not a perfect fit with tow hitch but I put a shim in space and works good.



by:

Worked out great for my family bike adventure. Traveled with that setup over 1000 miles and it was easy drive. I had cargo carrier on the bottom and bike rack on top, and with that setup and 4 people on board still plenty of ground clearance 11". Dual hitch is a solid piece of steel that can carry a lot of lbs. Just don't overload max. tong weight, need some room for safety!

Marcin profile picture

Marcin

6/23/2024

Solid piece of equipment. Heavy duty hitch, great for custom multi use, best if you have large Suv or pick up truck with biger ground clearance.



by:

Worked like a charm for what I wanted. Flat tow and carry e bikes. Without sacrificing much in tongue weight.

Lazer S. profile picture
Etrailer Expert

Lazer S.

9/16/2025

Glad to hear and see it's working well for you, Michael! What kind of bike is that in your pictures?



by:

Great hitch. the lower receiver lines up perfectly with my tow vehicle and the upper hitch will handle my bicycles. This is a great accessory which makes life just a little bit better.


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See what our Experts say about this Roadmaster Hitch Adapters

  • Does the Use of a Dual Hitch Adapter Reduce Tongue Weight Capacity
    You are correct, the use of an adapter typically reduces the tongue weight capacity by 50%, but the amount can vary slightly. Since you are towing a trailer, you do not want to use the Roadmaster Dual Hitch Receiver Adapter, 6" Drop/Rise # RM-077-6 since it is designed for flat towing. As for the other dual hitch adapters available, I checked and they all reduce capacity by 50% so that would leave you overloaded. I do, however, have a solution. I recommend using the Replacement Shank...
    view full answer...
  • Bike Rack for Lectric XP4 750 On Motorhome Flat Towing Jeep
    Hey Kevin! For a bike rack that is rated for motorhomes and can handle your XP4 750 e-bikes I recommend the Hollywood Racks RV Rider Bike Rack # HLY64FR. Your bikes weigh 62 lbs each and this has a capacity of 80 lbs per bike. It also uses padded clamps which can secure the bikes by the frame or seat post, perfect for step-through designs. You will also need a Dual Hitch Receiver Adapter like # RM-077-6 (2" or 6" Drop/Rise) or # RM-077-4 (2" or 4" Drop/Rise) so you can mount the bike...
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  • How to Carry Two Bikes While Flat Towing With Motorhome
    We definitely have a solution for you that will allow you to carry your two bikes though not the exact adapter you are asking about that already has a ball mount. The first option is to use a dual hitch adapter which does have the needed clearance between the top and bottom receivers, though you do need to ensure you get the one that has the correct rise or drop. For that you can use the Roadmaster Dual Hitch Receiver Adapter, 6" Drop/Rise # RM-077-6, 8" Drop/Rise # RM-077-8 or 10" Drop/Rise...
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    Image 1 for
  • Dual Hitch Adapter Needed To Flat Tow And Haul A Bike Rack At The Same Time
    Hey Gerry, Do you need a drop or rise for the receiver tube that the tow bar slots into? Most people flat towing will either go with a specific rise/drop dual receiver hitch like the Roadmaster # RM-077-6 or will use a stacked receiver like the Gen-Y # 325-GH-314. There a few variations to these so we'll really need to know where the tow bar is needing to sit to be level to determine the right adapter to give yourself enough space between the bike rack and tow bar. Let me know and I'd...
    view full answer...
  • Can the Roadmaster Dual Hitch Receiver Adapter be Used w/ a Winch?
    No, it definitely can not handle a winch! We have encountered this question before and Roadmaster has repeatedly shot it down. The Roadmaster Dual Hitch Receiver Adapter item # RM-077-6 can only be used while flat towing and using an accessory like a cargo carrier or bike rack. Gen-Y on the other hand has a ball mount that will work great for exactly what you're wanting to do. It is the Gen-Y Adjustable 2-Ball Mount w/ Stacked Receivers item # 325-GH-314. This is built for a more heavy-duty...
    view full answer...
  • Dual Hitch Receiver That Can Be Used For Things Other Than Flat Towing
    Hi David! A lot of these are for flat towing, but I have a better option that I think you will be interested in. Check out the following two parts: Shank for Gen-Y Adjustable Ball Mount - 2" Hitch - 10" Drop/Rise - 16K # 325-GH-505 Shank for Gen-Y Adjustable Ball Mount - 2" Hitch - 7-1/2" Drop/Rise - 16K # 325-GH-504 These are beefy as all get out, American made, and can be used for any number of things. And that includes using more than one receiver at a time. These essentially have...
    view full answer...
  • Is There Solution to Allow Carrying E-Scooter Rack and Flat Towing a Vehicle
    Hey Kathryn, we have dual hitch adapters like it sounds like what you are looking for with the Roadmaster Dual Hitch Receiver Adapter # RM-077-6. This would allow you to use the lower hitch opening for your tow bar and then the upper opening for your scooter rack. Do you have a rack for the scooter already?
    view full answer...
  • What Bike Rack do I Need for My Step-Thru e-Bike and Carbon Fiber Bikes on Back of Travel Trailer?
    Hello Alan, I’m happy to help you find the right bike rack to suit your needs. For your two step-thru e-bikes on the back of a travel trailer, I recommend the Swagman E-Spec Bike Rack for 2 Electric Bikes - 2" Hitches - Frame Mount # S94FR. This rack is rated for travel trailers, supports up to 70 pounds per bike, and, as you can see from the attached picture, it will work well for your step-thru bikes. There aren’t many bike racks rated for the back of a travel trailer. Unfortunately,...
    view full answer...
  • How Much Does The Roadmaster Dual Hitch Receiver Adapter # RM-077-6 Weigh
    Hey Brian, The Roadmaster Dual Hitch Receiver Adapter with 2" or 6" Drop/Rise # RM-077-6 weighs approximately 25.7lbs so it's pretty lightweight compared to most other adapters. Are you trying to haul your bike rack while towing your Smart fortwo? If so, the receiver tubes of this adapter are slightly rounded and won't accept a shank with sharply squared corners so you'll want to doublecheck your accessories first.
    view full answer...
  • Will Roadmaster Dual Hitch Receiver Work For Flat Towing & Carrying Scooter
    Hey Brian; the answer is likely no, but it depends on the weight of the Vespa. The Roadmaster Dual Hitch Receiver Adapter with 2" or 6" Drop/Rise # RM-077-6 has a 400 lb tongue weight capacity, so the weight of the Vespa and carrier, along with the tongue weight of your flat towed vehicle can only be 400 lbs. I assume the weight of those is going to be more than 400 lbs, but if it's not then you can use it; otherwise it would be too much weight.
    view full answer...
  • Are Small Table Lamps Available For A Motorhome Dinette Table
    Hey Todd, We offer smaller wall mounted lights like the Gustafson 12V RV LED Reading Light # 277-000334 that you could use but we don't offer small lamps that would actually sit on the table if that's what you're looking for. For a lamp that would sit on the table you would just want to pick one up from your local department store.
    view full answer...
  • Recommended Dual Ball Mount to Tow a Trailer and Use a Bike Rack
    Thanks for the picture! To tow a trailer and haul a bike rack off of your Thor Magnitude's hitch, I recommend the Gen-Y Adjustable 2-Ball Mount w/ Stacked Receivers item # 325-GH-514. This adjustable ball mount has four 2" receiver openings that will allow you to use both a hitch mounted bike rack and tow your trailer. This ball mount has a 12,000 lbs towing capacity and a 1,500 lbs maximum tongue weight. This will not reduce your motorhome's current capacity. This ball mount includes...
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    Image 1 for
  • Roadmaster Hitch Adapter for Flat towing a 2018 Jeep Rubicon and Two E-Bikes
    I recommend the Roadmaster Dual Hitch Receiver Adapter, 10" Drop/Rise item # RM-077-10. This adapter was designed for this type of set up. Your Jeep Rubicon and Swagman E bike rack weigh well below the 10,000 lbs maximum capacity of this hitch. I have attached a review video as well as a picture that show this rack being utilized in the same way.
    view full answer...
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  • Flat Tow Vehicle While Also Using Bike Carrier
    Yes, this is exactly what the MaxxTow Dual Hitch Extender for 2" Trailer Hitches, # MT70070 is intended for. However, keep in mind that per manufacturer this reduces your hitch rating by 50%. The extender has a weight rating of 400 lbs. tongue weight and gross trailer weight rating of 4,000 lbs. so please compare this to the vehicle you are flat towing. While the # MT70070 is designed to allow you to add an accessory such as a bike rack and use the tow bar, you cannot use an additional...
    view full answer...
    Image 1 for
  • Can Roadmaster Dual Hitch Receiver Adapter be Used with a Winch
    I do have a solution for you but when I reached out to my contact at Roadmaster they did not recommend using the Dual Hitch Receiver Adapter # RM-077-6 with a winch. Instead what I recommend using is a Gen-Y Hitch. We have part # 325-GH-313 which has a 5" rise/drop and part # 325-GH-314 which has a 7-1/2" rise/drop which you can use. These are much more heavy-duty than the adapters used for flat towing so you can definitely use it with your winch on a mounting bracket like part # BDW20011...
    view full answer...
  • Can Dual Hitch Adapter Be Used To Flat Tow Jeep and Carry Accessory In Upper Receiver?
    As long as you are not exceeding the tongue weight rating of the trailer hitch receiver or dual hitch receiver adapter, you will not have any issues adding your 150lb accessory with the adapter as is, but I do not recommend modifying the adapter in any way as that will void the warranty of the adapter. If you cannot find the tongue weight rating of your adapter you would be better off replacing it with one like the Roadmaster Dual Hitch Receiver Adapter, 6" Drop/Rise # RM-077-6 which has...
    view full answer...
  • How To Carry Bikes While Flat-Towing a Chevy Sonic Sedan
    Yes, I do have an option for you to carry bikes with your flat-tow setup. However, since there is not a trailer hitch for your vehicle yet and you don't want to use a trunk mount or roof rack bike rack then you will have no other option but to use a dual hitch adapter and place the bikes on a hitch mounted back rack between the tow vehicle and toad. For this, we have a few options for you depending on your rise/drop needs. In order to determine what your rise/drop needs are we will want...
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    Image 1 for
  • How Do I Add Rise to My Hitch to Prevent Scraping of My Yakima RidgeBack?
    I have a solution for you. Given by the looks of your clearance issue on your 2019 Honda Pilot with the Yakima RidgeBack 4 Bike Rack - 1-1/4" and 2" Hitches - Tilting # Y02458, there is a solution that involves a hitch adapter. If you have a 2-inch hitch, the best option is the the Roadmaster Dual Hitch Receiver Adapter, 6" Drop/Rise # RM-077-6. However, with the Roadmaster receiver, it is still possible that there may be scraping against the bottom receiver of the dual adapter. We currently...
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  • Is There an Option to Lower the Trailer Hitch Receiver for Motorcycle Carrier Use?
    There really isn't an option to lower your hitch 6 inches and carry 400 lb motorcycle with carrier. The Roadmaster Dual Hitch Receiver Adapter, 6" Drop/Rise # RM-077-6 is the strongest option with a 400 lb tongue weight capacity that doesn't account for the weight of the carrier, so is not a working option. Adapters simply are not strong enough for the tongue weight you are seeking. Your best option is to use the Replacement Shank for Gen-Y Adjustable Ball Mount - 2" Hitch - 7-1/2" Drop/Rise...
    view full answer...
    Image 1 for
  • How Can I Carry My 1up Hitch Bike Rack While Towing My 2017 Lance 1895 Trailer
    My recommendation is to use a hitch adapter. You could use something like the Gen-Y Adjustable 2-Ball Mount w/ Stacked Receivers - 2" Hitch - 10" Drop/Rise - 10K, part # 325-GH-315, to carry your 1up rack. This rack should not cause any issues with your trailer's turn radius. The Stromberg Carlson Bike Bunk Trailer-Mounted Bike Rack Carrier for A-Frame Trailers - 2"-100 lbs, part # CC-275, you attached to your question will also work. It is not as robust of an option. This solution will...
    view full answer...
  • Can Dual Hitch Adapter be Used for Flat Towing & Bike Rack
    Yes, you can use a dual hitch adapter for flat towing and carrying a bike rack at the same time. You just need the one with the correct rise or drop, and you can choose from the following: - 2" or 4" Drop/Rise: Roadmaster Dual Hitch Receiver Adapter # RM-077-4 - 2" or 6" Drop/Rise: Roadmaster Dual Hitch Receiver Adapter # RM-077-6 - 2" or 8" Drop/Rise: Roadmaster Dual Hitch Receiver Adapter # RM-077-8 - 2" or 10" Drop/Rise: Roadmaster Dual Hitch Receiver Adapter # RM-077-10 Then to...
    view full answer...
  • Which Roadmaster Dual Hitch Adapter For Carrying Bike Rack While Flat Towing
    Since the receiver height and the base plate height of the vehicle is the same, you won't need to worry about keeping the tow bar level. If your bike rack has an angled shank with a couple inches of rise to it, you could use the # RM-077-6. If the bike rack has a straight shank, you'll want a dual-hitch adapter with a larger rise such as # RM-077-8 for an 8-inch or # RM-077-10 for a 10-inch rise to move the bike rack up and out of the way. The adapters have a tongue weight capacity...
    view full answer...
    Image 1 for
  • How To Carry a Bike on the Back of a Motor Home While Flat-Towing
    In order to carry bikes on the back of your motor home while also towing your 2019 Honda Fit you will first need a dual hitch adapter which I have attached a list of options for your below. Roadmaster Dual Hitch Receiver Adapter (4" Rise/Drop) - part # RM-077-4 Roadmaster Dual Hitch Receiver Adapter (6" Rise/Drop) - part # RM-077-6 Roadmaster Dual Hitch Receiver Adapter (8" Rise/Drop) - part # RM-077-8 I recommend the Kuat Transfer V2 Bike Rack for 2 Bikes - 2" Hitches - Wheel Mount...
    view full answer...
    Image 1 for
  • Can GearDeck Cargo Carrier be While Flat Towing Vehicle with Motorhome
    You could use a dual hitch adapter like the Roadmaster part # RM-077-6 so that you could tow your vehicle in the lower hitch opening and then also carry in the upper hitch opening the GearDeck 17 Enclosed Cargo Carrier # H00604. You should note that using hitch adapters does cut the tongue weight capacity of the hitch it is installed in by 50 percent so you'd need to be aware of the reduction in weight capacity.
    view full answer...


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Info for this part was:

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Mike L
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