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  1. Hitch Adapters
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  3. Dual Hitch Adapter
  4. Fits 2 Inch Hitch
  5. 10000 lbs
  6. 2 Inch Rise/Drop
  7. 6 Inch Rise/Drop
Roadmaster Dual Hitch Receiver Adapter with 2" or 6" Drop/Rise

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

Item # RM-077-6
Our Price: $210.71
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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 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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  • Reviews (163)
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Roadmaster Hitch Adapters - RM-077-6

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

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


  • 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)


  • 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


  • 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:

Customer Reviews

Roadmaster Dual Hitch Receiver Adapter with 2" or 6" Drop/Rise - RM-077-6

Average Customer Rating:  4.8 out of 5 stars   (163 Customer Reviews)

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


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!


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.


Works great. Easy to install. No assembly is required. Solved our problem of mounting our bike rack as well as our trailer.


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


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

Etrailer Expert

Katrina D.


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.


This is exactly what I needed to tow my Jeep Gladiator behind my class C


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


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.


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.


Exactly what I needed to not only tow our Jeep, but also to put our Hollywood bike rack on. Great quality!


It works great, it's what I need , Id like it better if it was cheaper.



Its nice and well worth the money, and works great for me


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.


Heavy duty, well made, and fits perfect.


Great product at a fair price . Customer rep was very helpful .


High quality


Built stout, fit perfectly. Suggest buying a locking hitch pin!


Does it's job well. Holds the bike rack for the ebikes and allows us to tow our Jeep behind the RV.


As Expected. 2" drop aligned car tow bar. Hope to use 5" rise for bike rack in future.


Exactly what i need.


Just what I needed for my tow and bikes.
Thank you.


Works as designed, well built,


Really quick delivery. Hitch is very heavy duty. Just what I wanted.


It looks to be exactly what I need to raise my carrier up higher


I wish the pin bore was not so far back. The instructions say a second hole can't be drilled to allow it to set closer to the vehicle. Will make it work as is I guess.


Very well built, great finish too.

Show More Reviews

See what our Experts say about this Roadmaster Hitch Adapters

  • 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...
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  • Is There a Dual Mount Receiver Which Allows For a Cargo Carrier While Towing a Car Using a Dolly?
    The Roadmaster Dual Hitch Receiver Adapter is available in different drop/rise sizes. 4" # RM-077-4 6" # RM-077-6 8" # RM-077-8 10" # RM-077-10 These would allow you to flat or dolly tow a car with a Cargo Carrier # e98874 being used to carry additional gear.
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  • 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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  • Can Swagman S94FR E-Spec Bike Rack Be Used While Towing Vehicle Behind Class A Motorhome
    The Swagman # S94FR E-Spec bike rack can indeed be used on the rear of a Class A motorhome while flat towing a vehicle, or if the vehicle you're flat towing already has a Class III or higher hitch on it with a 2 inch receiver, you can install the rack on the vehicle you're towing, as it's also designed for use on a towed vehicle. The E-Spec can carry 2 bikes weighing up to 70 lbs each with tires up to 3 inches wide. Because it holds the bikes by the top frame tube instead of the wheel...
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  • How to Carry a Bike Rack and Flat-Tow a Vehicle
    There is not a maximum length ball mount or hitch extension that can be used in a flat-towing setup. However, the further out you go, the less tongue weight the ball mount or extension will be able to carry which is not really an issue for a flat-towing setup but is something you need to keep in mind. The best option we have for you to flat-tow your vehicle and carry a bike rack is with the Roadmaster Dual Hitch Receiver Adapter part # RM-077-2 for 2-1/4" rise/drop, part # RM-077-4 for...
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  • Dual Hitch Adapter for Flat Towing 4,200 lb Vehicle and Carrying Bike Rack
    The best solution we have would be to use the dual-hitch adapter part # RM-077-6 which would be the only adapter we offer with enough capacity for flat towing a 4,200 lb vehicle and has upper hitch opening that you can use for a cargo carrier or bike rack. If your tow vehicle is going to be a motorhome you'll need to be sure you are using a bike rack rated for the rougher ride quality at the rear of a motorhome like the Swagman XC part # S64650.
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  • Availability of Dual Hitch Receiver Adapter for 2-1/2" Trailer Hitch Receiver
    I believe you are looking for a dual hitch receiver adapter like the Roadmaster # RM-077-6 that's directly compatible with the 2-1/2" receiver on your Ford F-250. While there isn't an adapter like this available that's designed for 2-1/2" receivers, you can still use a 2" model like this one by simply adding a reducer sleeve like # C45405 to your truck's receiver. This will reduce the 2-1/2" receiver to a 2" opening so that this and other 2" accessories can be used. I have attached a...
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  • Comparing Dual Hitch Adapters to Carry Accessory While Towing
    I think what you are trying to compare are adapters like the Roadmaster # RM-077-6 and the Curt # D-192. While these look very similar and they help to accomplish similar tasks (adding a bike rack or cargo carrier to your towing application), they are actually built differently. Sure part of the cost difference is due to the name of the company and such but the Roadmaster option is designed for flat towing and can't be used for towing a trailer. You can actually use either of the receivers...
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  • 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...
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  • Can Roadmaster Dual Hitch Receiver Adapter Be Used for Cargo Carrier While Flat Towing
    Yes, the Roadmaster Dual Hitch Receiver Adapter # RM-077-6 is designed with this exact type of situation in mind! If you don't already have a cargo carrier I recommend using the Flint Hill Goods # FHG27ZR as it has an aluminum construction which means it does a great job at resisting rust and corrosion plus it's also very lightweight (it only weighs in at 29 lbs). You won't want to add an extension to this adapter or the tow bar as that would then add too many moving parts and make the...
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  • Recommended Front Mount Receiver for Bike Rack on 2013 Thor Tuscany RV
    Based on my research your 2013 Thor Tuscany is built on the Freightliner XC chassis. There is not a custom front hitch available for this vehicle so your best option will be with a universal design like the Curt # C13702. This hitch can be either welded or bolted on with the included hardware and it fits frames that are 18 to 15 inches wide. It has a 2 inch receiver and a 500 pound tongue weight capacity. If you already have a rear hitch receiver but are using it for something else like...
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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...
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  • Multipurpose 2-Inch Ball Mount to Allow Both Trailer Towing and Hitch-Mount Accessory Use
    For your Mercedes-Benz Sprinter-based RV we do not offer an actual trailer hitch receiver with dual openings, such as # TLC1204 from TorkLift. For the 2018 Sprinter 3500 chassis, as an example, we do offer single receiver hitches shown on the linked page. Their fits vary depending on wheelbase and bumper type. We DO have hitch adapters like Roadmaster # RM-077-6 that allows both flat towing with a tow bar and towing with a tow dolly while using a hitch-mount accessory like a bike rack...
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  • Parts Needed To Flat Tow a 2014 Ford F-250 or 2017 Ford Explorer Sport With a Tiffin Allegro RV
    First you will need to start with the baseplates. For that I recommend the Roadmaster Direct-Connect Base Plate Kit # 4428-3 for your 2014 Ford F-250. Your 2017 Ford Explorer Sport will need either the Roadmaster Direct-Connect Base Plate Kit # RM-524446-5 (Okay for Adaptive Cruise Control, No Active Grill Shutters) or Roadmaster Direct-Connect Base Plate Kit # RM-524445-5 (Okay Active Grill Shutters, No Adaptive Cruise Control). With the weight of your F-250 I recommend using the Roadmaster...
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  • How To Carry Bikes On Back of Motorhome While Towing a Car
    In order to carry a bike rack while also flat-towing a vehicle you'll need a dual hitch adapter, the Roadmaster Dual Hitch Receiver Adapter part # RM-077-2, part # RM-077-4, or part # RM-077-6. Then for a bike rack, you'd just need to make sure it is rated for use on a motorhome for which we have several options, the Hollywood Racks RV Rider 2 Bike Platform Rack part # HLY64FR is what I recommend. I have attached a full list of options below.
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  • Which Dual Hitch Adapter Has the Highest Tongue Weight Capacity
    The dual hitch adapter we carry with the highest tongue weight capacity is the Roadmaster Dual Hitch Receiver Adapter part # RM-077-6 for 6" rise or part # RM-077-8 for 8" rise. They both have a 400 lb tongue weight capacity. Please note that this adapter is designed for flat towing only. If you can give me a better idea of what you are using the adapter for we may have alternative options if the above will not work.
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  • Bumper Clearance Offered by Roadmaster RM-077-6 Dual Hitch Adapter
    The spacing between the back of the upper receiver and the hitch pin hole is 6-1/2 inches, which wouldn't be long enough for your needs. The Malone # MPG544 dual hitch adapter has a longer shank, and might be a good option for you. The # MPG544 measures 9 inches between the back of the 2nd receiver and the hitch pin hole, which could provide the bumper clearance you're needing. You'll need to measure rearward from your hitch pin hole to see if that 9 inches of spacing would be enough,...
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  • Recommended Dual Hitch Adapter for Newmar Baystar Towing 2013 Jeep Wrangler Unlimited
    Thank you for providing those helpful measurements. With the 8" difference I would go ahead and choose the Roadmaster Dual Hitch Receiver Adapter, 2 " or 8" Drop/Rise # RM-077-8 over the # RM-077-6. Loading it won't make much of a difference on the height. Also, the flat towed vehicle adds no tongue weight so really there should be no sag at all. Even if you did somehow drop 2" after loading your motorhome you would still be in the safe zone, which is +/- 3" from level. If you want to...
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  • How To Carry Bikes and Use a Tow Bar On the Back Of An RV
    In order to carry bikes on the back of an RV and still use a tow bar you'll need to look into a dual high, high-low adapter like the Roadmaster Dual Hitch Receiver Adapter for Tow Bars part # RM-077-2. This adapter is also offered in a few other rises/drops like part # RM-077-4 and part # RM-077-6.
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  • Best Way To Carry E-Bikes While Flat Towing a Vehicle
    The best option to carry bikes while flat-towing is with a hitch on the back of a towed vehicle. The reason for this is that the bikes will be out of the way you don't have to lift the bikes any higher. The downside of this option is you don't have many bike racks to choose from since most aren't rated for the back of a towed vehicle. The Yakima OnRamp Bike Rack for 2 Electric Bikes part # Y36FR is an option rated for flat towed vehicles and can hold e-bikes. The other option is an adapter...
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  • Is There an Adapter I Can Use with the EasyFold XT in Order to Not Interfere with My RV Slide-Out?
    I have a solution for you. I reached out to my tech at Thule, and he said that there should not be an issue with keeping your EasyFold XT # TH903202 in the tilted position with bikes loaded overnight. With that being said, Thule does recommend removing the bikes from the rack whenever possible to decrease the tension on the rack when not in use. Unfortunately, there is not any type of brace that can be used, and any solution that would involve a drop adapter like the Roadmaster Dual Hitch...
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  • Recommended Flat Towing Package For A 2022 Ford Bronco
    When installing a flat towing package on your 2022 Ford Broncos I recommend The following items below: Roadmaster Direct-Connect Base Plate Kit - Removable Arms # RM92ZR Roadmaster Falcon 2 Tow Bar - Motorhome Mount - 2 inch Hitch - 6,000 lbs # RM-520 Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit # RM-15267 Demco SBS Stay-IN-Play DUO Supplemental Braking System - Proportional # SM99251 RoadMaster 76 inch Single Hook, Straight Safety Cables - 8,000 pounds # RM-645-76 Roadmaster...
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  • 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...
    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...

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